DK176860B1 - Stain for the protection of woodwork and its use - Google Patents

Description

»DK 176860 81

Stain for the protection of woodwork and its use.

The present invention relates to a stain and its use for protecting woodwork from degradation caused by the ambient atmosphere.

5 humidity, insects etc.

Environmental requirements from authorities, increased environmental awareness and quality requirements from consumers have caused an increased interest in stain and paint systems that do not contain solvents. Previously, various 10 systems for exterior protection of woodwork with water as a solvent have been marketed, but due to unfortunate technical and application conditions, these products have received very little distribution. The disadvantages of today's alternatives are that they do not have properties that give the tree the necessary internal protection.

15

Existing stain and paint systems with water as solvent generally contain a combination of emulsion emulsions and thermoplastic plastic raw materials such as acrylates and the like. These alkyds and acrylics have a very high mole cool weight, often 100 to 200 times higher than that of solvent-based oil alkyd products, and therefore result in poor or no penetration ability, which implies a significant risk of moisture absorption which can result in rotting. However, these coverings have good protective properties against degradation of the outer film by the influence of sunlight (UV resistance, cosmetic effect). Furthermore, the molding is unstable because the thermoplastic can expand in water. When moisture penetrates into the woodwork, the plastic will usually expand and then contract under the drying screen, providing a film with much slower humidification.

30 Dehydration mechanisms should ideally be such that the paint must prevent external moisture from coming into contact with the woodwork, at the same time! the paint film should be so diffusion open that it allows the excess of water vapor and condensation to be released. For high molecular weight water based film based films, this mechanism has not been satisfactory in relation to ten! solvent-based oil alkali systems, which has resulted in limited use of such products alone without treatment with oil residues.

5

According to the present invention there is provided a stain for protection of woodwork, characterized in that it contains: (i) Vegetable oil alkali nulsion comprising a combination of non-ionic emulsifier selected from alkoxylated C10 ™ 026 fatty oils and sonic emulsifier selected from fat I ko i ho la I koxy iate rt (ii) pigment, (iii) refined wood tar.

(iv) vegetable oil, (v) water and organic solvent, or water alone, and (vi) conventional additives.

The invention also brings about the use of such a stain which combines priming and cover painting on woodwork.

It is preferred that the alkoxylated C10-C26 fatty oil be ethoxylated castor oil. Furthermore, it is preferred that the fatty alcohol carbonylate be constituted by fatty alcohol ethoxylate.

Current proportions of the various ingredients of the pickle are such that it includes 10 - 60% by volume and more preferably 30-40% by volume of vegetable oil alkaline mucus XXX; 0.5 - 25 vol% and more preferably 1 - 10 vol% wood tar; 0.5 to 25% by volume and more preferably 1 to 25% by volume of vegetable oil, and the remainder ie, pigment, water and organic solvent, or water alone, and conventional additives up to 100% by volume.

The oil pad used is an alkyd which is added to the emulsifier so that it becomes emulsifiable / soluble in water and organic solvents or water.

S

The emulsifier can be selected from a variety of different types of surfactants known to those of ordinary skill in the art.

The organic solvent may conveniently be mineral turpentine, and the vegetable oil may advantageously be boiled linseed oil. The finished state of use is the stain made with water as the solvent, but may be diluted to an organic solvent and / or water. is diluted either (i) with water alone, (ii) with 10 organic solvent only, or (iii) with both water and organic solvent. Preferably, only water is used as a diluent.

Treatment of woodwork with the present stain replaces previous treatment systems which must be used! groundwork as well as a deck lift or paint. Thus, according to the features of the invention, the stain has. that it represents a combined primer and cover paint product. This gives great advantages especially on new woodwork, which saves a layer of grounds.

The present stain may be prepared by emulsifying refined wood tar and vegetable oil, typically boiled in oil with oil decay, pigment and conventional water additives as a solvent. A major advantage of the present stain is that the environmentally damaged conventional use of toxic solvents such as mineral turpentine is avoided while achieving a purely economical gain by using water as a solvent instead of organic solvents such as, e.g. mineral turpentine.

In order to meet both environmental requirements and increased requirements for satisfactory protection of 30 woodwork, in the present context, pure oil-based binders have been developed which can form emulsions with both water and organic solvents. These binders, which are preferably constituted by special water-emulsifiable oils (both mineral and vegetable), can be added. wooden tar along with vegetable oil substitutes such as dry example cooked. ilnolie.! the present pickle is preferably used on vegetable oils of vegetable type.

6 Typical properties of a combination on this basis can be directly compared with those for solvent-based ore; work see r / d equilibrium with regard to file penetration, preservation, diffusion, UV resistance, outer formation and ease of use. Such properties for water-based grazing / coverwork / grouting products have not previously been attainable, having used an oilworking foundation, i.e. relying on a toti in three-tier system (including priming).

The existing stain can be used as primer, stain and paint in one and the same product. This stain has been added to some thixostropic properties. It moisturizes the applied material in depth and provides a homogeneous surface deflection that provides long-term effect as protection. This effect is offset by the natural products used, tar and vegetable oil, the latter being preferably constituted by boiled linseed oil, which also dries slowly. Furthermore, the present stain is very temperature and weather resistant and has a great 20 coverage, namely approx. 8 - 10 m2 / liter depending on the substrate. Examples of applications for the present stain include exterior woodwork, houses, cottages, farm buildings and the like. It can be applied to both untreated and previously stained and painted hats.

After application of the present stain and evaporation of the solvent, a homogeneous film is formed which is not water soluble at normal temperatures and weather conditions. This film behaves like traditional solvent-based oil stains / cover stains and paints with a low moisture storage and good release (NO: exhaust) of vapor / condensation (diffusion) and a stable outer film in humidity. At the same time, it appears that the outer film is as stable as other solvent based oil paints / coverslips and paints with respect to external degradation due to sunlight (UV resistance).

Two of the most important features besides the moisture migration mechanism and UV ~ 5 resistance are the wood tar and vegetable otiers, for example! linotl's, properties in the paint lining, 1) The wood tar delays the drought / curing process and results in very good penetration, adhesion and protection. The wood tar also has good impregnating properties. This is due to the chain structure as well as much

Saw average moyle kyle weight.

2) Vegetable oils, for example boiled linseed oil, contribute to homogenization of the coating film, which causes low moisture penetration, as well as to strengthen the surface film and, together with the used oil coating, provides good UV resistance. The chain structure and the soft weight of wood tar and most vegetable oils as for example! boiled flax oil is very low and gives good penetration into the woodwork.

The present stain has a moisture migration comparable to a traditional organic solvent detergent stain. However, wood tar and boiled linseed oil in the present stain contribute to significantly better sand penetration properties on the surface of previously treated or untreated woodwork. The fact that the present stain dries oxidatively implies that the intrusion mechanism continues after the water or solvent has evaporated (as opposed to traditional water-based systems that only dry physically, see table below). Wood tar significantly slows down the oxidative drying and results in the vegetable oils, preferably boiled linoil, as well as oil emulsifiers and the wood tar themselves getting better fat! to penetrate 30 into the woodwork and moisten in depth.

in DK 176860 B1) 6

All of these factors provide a moisture migration / permeability of the stain / paint film in line with a traditional solvent-based oil coolant system. Table 1 below shows the properties of the known and present stains mentioned above.

5

Table 1

Type j Molecular weight j Drying \ Paint-! In mechanism j penetration in j I I substrate "Trad., Oil work-1 Low j Oxidative j Good

se / maiing * | i

_i ....... i_i_

Water based al- j Very high j Physical j Very poor kyd ~ / acrylic paint j | j

Existing j Very low j Oxidative [Very good stain j j j * = Oil cover. which is soluble in organic solvent as well. fillers (reference product)

Comparison trials increase * results

Testing of the present stain (color red) and comparison has been performed with (I) Tjærelin Landrød (color red), which is a known commercially available product comprising an oil solvent which is soluble in organic solvent and wood tar and fillers and (ii) Drygolin® (reference product in the color red), which is a well-known commercially available oil sealer. The samples were fixed according to ER orientation "Paint and stain 20 for exterior wood. Property declaration of paint and stain for exterior wood, August 1983" together with some other relevant test methods.

) DK 176860 81 7

Tested properties 1 Adhesion to dry substrate 5 The test was carried out according to ISO 4624 "Paint and viarnishes - Puii-off test for adhesion".

Planed spruce pans were applied stain with brush in an amount (m2 / liter) and number of layers as recommended by the manufacturer. Grounds were used in the 10 Drvgolin © test.

The panels were dried for 14 days. in an air conditioning room, after which an extractor device ie. one dollier (area 3.14 cnT :) was glued to the samples with standard Araldii two-component epoxy glue. The glue hardened for a day, after which the doli was cut free to the substrate and pulled off with an electric extractor PAT Automatic AT 101 E (speed 5). product, ISO requirements: Rip-off value minimum 1.25 MPa.

The obtained test results are given in Table 2 below.

Table 2 Attachment ISO 4624

Test: Attachment to dry substrate 25! Ϊ GB 176860 81 8

Product ___I PaiaEcll ____ Attachment _______________________________! Attachment Wrench Type of type% distribution of bridal area

Drygoline ^ · (fen; · section ___ 3.9 ________________________________________________________________ A «Wood subX ag Par. 1 ____ 4,5 ________________ 45 A. 30 B / C. 25 C_________ B - Basics __Parji ______! _ 3..9 ......... 1_________45 A / fi, 35 B / C, 7.0 C_____

C-- · L las__________i Par. 3 _.............. 60 A, 15 B / C, 25 C

p »_ & £ __________ Pat. 4 __r_85 .4.15 C_ __ [_ Par. 5 ................ 3.5 10 A, 45 B / C. 35 C_______ Yearly Average Average .............. 3A5 ______..................................... ............

A “Exercise Time Couples, ____ ____ 3.6 55 A, 45B

B ”T LandTgcl. i-ar 2 __________ IJ ............... ....... 13 A, 65 A / B, 2Qg _________. C ”T Landred .............. Par. 3 ____________ 33 ............. j ........... 20 Ai 55 A / B, 25 B ..........

....... Par. 4 _______ 3.8 ................................................... Pat . 5 __________ V? _______ US A, 90 B__________j

Existing bend GennetRsnit_33________

A = Tj ~: ismtd & r ia; j i Pat, l ______33____i__40 A, 50 C

B = T Available Stain ______ Pat.2 ....................... 3.0 ............. ... .......__ 30A., _ 70C_________________ jC ~ T ForeSiggenci «bejdse__Par. ! 3 ________________________ 2J5 ............................... ^ / 9 Α, ρ.ΟΟ: _______ D ~ T Available stains .. .____Couple. 4 ________________________ 33 _____________ ^ _________________ 50 A, 50 C___________ .................. Par. S___________i S ΔΟΛΑ9.5Ϊ: ___ it is not possible to separate the layers with the same paint.

Attachment tIB wet with dried underlap 5

The experiment was conducted in accordance with IS 4824.

Fir panels were applied maing / hoisting similarly to the dry substrate adhesive testing. After 14 days of drying, the panels of inheritance 10 were placed horizontally in a water tank with the painted surface facing upwards. 4 mm up along the side surfaces of the panels. After seven days' immersion, the panels were taken up and glued immediately. The glue dried for a day, after which the doli bark cut free to the substrate and pulled off as an adhesion. Five panels per sample were tested. stain. The panels were further examined for defects.

The panels were then dried in air conditioning, until the moisture in the panels was below 14%. Dollars were glued on and deductions were made.

! SG requirements: No visible defects (dissolution, swelling, formation, peeling).

Extraction value wet surface: Minimum 0.45 MPa.

10 Extraction value after drying; Minimum 1.1 MPa.

The obtained test results are given in Table 3 (wet substrate) and Table 4 (dried substrate): 15 Table Attachment, ISO 4624

Test Adhesion to wet surface! Ϊ GB 176860 81 10

Product_____________ in Parallel! ............. Attachment _______________________________ I Attachment Value Brand Type j MPa% -ws Fonts of Bridal Area i

Drygolia * Average ............ .................. 1.5 __________________________; A · = Tree base_ ........ Couple, t_________ 1J__35 A, 63 C_ B = Ground is pair, t__i, 5 ____ 20 A, Car C__ C = · in layer ........... Pat. 3 ______ 1.6 ......... 12 ^, 90 C ...............

O 2. logf ___ Pst ·. 4 ................. U; 35 A, 65 C

_ _____ Par._5 ....................... 1.6 ______________________________ 25 A, 75 C_______

Tieralin I ^ ucJiød _; 70 7 7Γ:: 77ίΐ 33 i_I

A - Trffluttderiag Par, ί _____ i, 4 ......... rJ_. 100 C

_B -Yyyyy ______________ Par._2 ____________ U__40 A'B, 60 C_ C ---! Country Red Couple. 3 ._....._ i_, i .................. ......... 75 A / R, 25 C ..... ...

____ _____Psr_4 i,) lOOC

__ _________ in ________ ParJ .............. 1.7 100 C

Average ^ 5

A - Wood bottom 1 ag _ ParA ................ 1.6 100 C

B = T Foi-bearing stains ........ Par. > 1.7 _ 100 C _

C - T Available stain in Par. 3 ...... 1_, 4 ................. i 00 C

[) = T Current Pat. 4 _15__1QQC_ ......................... j Par. 5 I 1.5 _100C_

It is not possible to separate the layers with the same paint.

1} DK 176860 81 11

Tab 4

Test: Attachment file dried surface.

Mi i toiteit ____________ I ........ articulate tfl V «in staple sword Sword type 6 .. .................___] WPa _________% - show dangerous in human »;

Prygolirft. ......_....... ................... 4.0 _______ A Wooden Underlay. ....... ParJ ______ 4J .............................. 100 a

B- = Grounds. ..... ... E ^ r.J__4j0 ........................... [00 A

C = licg _: V j ............. 4J _............ ................ ... [00 A

ilr ......... Par. 4 ........ ............ 4.0 ............. 100 A__

__ __ Pac. 5 _j_JJI__100 A

Chasi-Aline Land Red ........................... 4.0 ..........

A -jrrayr.darlaff Par, 1 _..................... 4t [................... .............. 195 Λ—

B_ ~ TIf.? 0red _______________ PwJ, _10 ___ 100 A

C = ° T UadiBd .................... ParJ _____ 4.0 ...................... .100 A

I ... .... Pac, 4 ________ + ___________ 4.1 ................................ 100 A

. ................. Par. S_______________________lOOA__! PORGING OEHTEE ......................... 15_ | ________

in A- · - Wood sub layers., _______ Panel .................... 1? ___________ ^ ___________________ 100 A

B --- t Available stain, ....... Par. 2 _______________: y? _ LOOA

C = T RwaliggencobejcJse j Pac, 'i j_4,0 ____ lOOA

D - T PreviiggenOe bath j j Pac. 4 ________ ^ ___________ 4J. LOOK A

i in Pac. 5 ________ ^ ___________ 4.11 ________________ lOOA_ _ 5

It is not possible to separate the layers with the same paint, in 2. Gloss 10 The tests were carried out according to ISO 2813 "Paints and varnishes - Measurement and specular gloss of non-metallic paint films at 20T 60 ° and 85 ° 1

The products were applied with the applicator on glass (gloss and dried).

Application rates based on stated or calculated 15% by volume of solids were used and recommend? dry film thickness from the manufacturer. A layer DK 176860 81 in A η in stain was used. Measurable gloss was obtained at 60 ° compared to the painted panels for exponents in VOM. In addition, the products were applied with applicator on delicate glass plates. The gloss was measured in five points.

5 The test results obtained are given in Table 5 below: i DK 176860 81 i Ί Γ "..... i! P ri" i ~ | j £ 3 ^ j pi

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OUT

) DK 176860 B1 14 2. Degree of varietal protection

The experiments were performed according to ten! prEN 927-4 "Paints and varnishes - Coating materials and coating systems for exterior wood. Measuring the water 5 vapor permeability of exterior wood coatings".

Planed spruce panels were applied stain with brush in an amount (m2 / liter) and number of layers as recommended by the manufacturer. Reference sample basis (ll) was used.

10

The system is applied to half the area of the fir panel. After the last application, the panels were laid ten! dry in the climate room, Until the weight was stable before being sealed on both sides and edges, the panels were split such that some warmed, and your part unpainted. A small painted bite was cut to measure the dry film thickness. The dry film thickness was measured by microscopy. Back and edges were sealed with a solution-free epoxy paint. After drying to stable weight, the panels were placed in a distilled water tank for 14 days. The panels were wiped off and weighed after one, two, three, seven, 1 and 14 days. Then the panels for drying in kiimarum lay for 14 days with weighing equivalent to 20 water uptake.

Percent resistance to water penetration (WPE% - Water Protection Efficiency) was calculated according to the following formula after ten and 14 days of water uptake.

25

W - W

WPE% - --4 --........--; f 100

Wu = Weight gain for unpainted panels after respectively. ten and 14 days immersion.

DK 176860 81 15

WC ~ The weight gain for painted panels after respectively. ten and 14 days' immersion.

The test results obtained are given in the tabs below! 6: 5 Table 6 Degree of water protection, pnEN 927-4

Product% WPE% WPE% WPE% WE

Average LO days for 10 days «E4 dago; 14 day «patalicLIci- jGsn» grris:; jt 1Ώ1JHLL µπι:);>; >>! U; ^ '· A ___. 8.6._ 83.2 _______?. 0 — j S Μ.6 86.3 80 i. ....... —-----'-; C ........ 12.1 i 76.2 ..... 80 £ ._ 74.3 60 72.0 _D ____________ 661 ... J 67.1 ______ 7.5 ......

...................... E_ 57.7 ____________ 59.6 ___________________60__________________________

Tar colorLaxi'i'iid .. __A; __ 80.1 | 7 /, 3 _60 ______ ^ _____ B ..... 77.0 71.7 _ _65 _C .. 84,? 8)., 2 [..... 11 ...,. 7¾) 75 72.0 _D ........ 84.5 ____ 82.4 ....... 80_ ....... E ^ 79.1 __________ 78.1 ...... ............ ....... 80 .___________________

The present a__ 47.1 -4,: ¾ j _30 b ^ åB "" 1 <5.4 44.5.

_____C 44.6 49.2 38.1 ____ 44.3 ____ §0_ 72.0 __D. 48.0 42.9 ____ _______65_; ______________________! 51.7 _________________ .75 ....................

* TFT Total Film Thickness 10 5, Elasticity

The tests were carried out in accordance with ISO 1519 "Paints and varnishes - 8end test (cylindrical mandrel)" 15 The products were dried for seven days in climates The plates were reportedly bent 180 ° about cylindrical mandrils with the plate temperature Q ° C and 23 ° C. The plates were examined for crack formation visually and at ten times magnification. journey.

ISO requirement: 0 ° C - no cracking when bending around the mandrel to a diameter of 4 mm.

10 23 ° C - no crack formation when bending around mandrel with diameter 2 mrn.

6, Water resistance 15 The tests were carried out according to IS 2812-1 "paints and varnishes - Determination of resistance to liquids - Part 1: General methods".

The guan panels were applied with a coat of stain on the top with brush! in a quantity (m2 / liter) and number of layers as recommended by the manufacturer. Reference sample (1l) was used. The products were also applied to the back and edges.

After seven days of drying in climate rooms,% of the panels were immersed in distilled water (23 ° C). After exposure for seven days, the panels were taken up and dried for two days and then examined for defects (swelling, blistering, adhesion, peeling).

ISO Requirements: No defects or changes except weak shields or frosting.

30

For results, see Table 7.

DK 176860 B1 17 7, Craft assessment 5 Door was made an assessment of the condition of the container, the application of drying properties and the appearance of applied matting in a dry state. For results see Table 7 below.

8. Weight percent dry matter 10

The test was carried out according to IS 321. Weighed approximately 1 gram sample and oven in 105 ° C for one hour. Two tests were used in the measurement. For results, see Tables 7, 15 9, Drying Below

The test was carried out according to ISO 9117 "Paints and varnishes - Determination of through-dry state and through-dry time - Method of test". A layer of the stains was applied to a flat glass plate with applicator (adjustable) in climate room 20 (23 ° C, 50% RF). It was used! application rates based on stated or calculated volume percent dry matter and recommended ear film thickness from the manufacturer. The painted sheets were laid to dry at different time intervals (five different times) before the measurement of drying was performed. The time was noted: when wet film was applied and when tested.

25

The painted glass sheets were put into the apparatus, and a stamp was manually lowered, ten! it was on the paint film. The plunger was pressed automatically in I! seconds before it automatically rotated 90 ° for two seconds. The plunger was lifted manually. Two experiments were performed with each paint.

30> DK 176860 81 18

Evaluation: When the paint is completely dried, we! there are no visible marks in the paint film or thesis. For results see Table 7 below.

10, Duration of accelerated degradation in Xenon weatherometer 5

Attempts were made according to ten! IS 11341 "Paints and varnishes - Artificial weathering and exposure to artificial radiation - Exposure to filtered xenon-arc radiation", ISO 11341 was introduced instead of ISO 4892 as it was found appropriate to use a standard prepared for use in measurement framework (published in 1994), ISO 4892 is primarily designed for use in plastic contexts. Crushed spruce panels were applied stain with brush in quantity (nrt / liier) and number of layers, as recommended by the manufacturer. After two weeks of drying in the climate room, the panels were inserted into the Xenon weatherometer. The panels were exposed for 701 hours. Color and gloss were measured before and after exposure. After exposure, the panels were assessed for degradation (NO: cracking), cracking and peeling. Gloss before and after exposure was measured according to ISO 2813, and percent gloss change was calculated. Color was measured on a spectrophotometer labeled SK 482 (Instrumental Color System Limited) before and after exposure, and color change calculated according to the principle described in accordance with ISO 7724. Degradation was assessed using the tape method, ISO 4628-6, Cracking according to ISO 46228-4 and peeling according to ISO 4828-5. For results see table 7, below. 11. Penetration of the present stain file white tire stain, 25

Spruce pans were applied three coats of the present stain with brush I amount (m2 / hter) and assumed! layers as recommended by the manufacturer.

After two weeks of drying in the cling room, the panels were inserted into the Xenon weatherometer.

30 The panels were exposed for 236 hours after which the raised surface of each panel in the rally! was overpowered with respectively. white Trebid tire stain and white Drygolin © Jotun paint.

After one week of drying, the panels were exposed for 315 hours in Xenon room 5. Upon completion of the exposure, the panels were evaluated for penetration of the present stain (red) to white cover stain.

Table 7 below provides a summary of the test results obtained above in Experiments 1 - 11.

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> DK 176860 81 21

Based on the test results obtained, the following can be concluded:

The adhesion to both dry and wet substrates is approximately the same for Tjæralin Landrød and Drygoiin® (red). For the present stain, the 5 adhesion is slightly lower than for Drygoiin®, but the difference lies in the boundary area to be significant. In addition, for the present stain there were a large number of fractures in the woodwork.

The main trend for fracture types was either the woodwork eti between the strokes forti) without ten in some between the woodwork and the 1st layer. The types of fractures for all extractions are not commented on in detail, as there are only minor differences between Tjæralin Landrød and Drygoiin® (red).

Both the elasticity and the water resistance are satisfactory based on the requirements of the ER layout.

The resistance to water penetration is numerically somewhat better for Tjæralin Landrød than for Drygoiin®, while the present stain has a significantly poorer water protection degree than both Drygoiin® and Træreiin Landrød, 20

There were big differences in gloss these days, measured on black glass and on wood panels.

Tarlow Landrød had higher gloss than Drygoiin® (red) on both gias and wood, while the present stain had a lower gloss than the other two stains.

25

In craftsmanship, there was a lot of research! on Drygoiin® (red) and Tjæralin Landrød. Both were easy to stir, had good confluence, good coverage and a good surface, in the present stain there were many particles which did not dissolve in iodine during construction. There was poorer cohesion when applied with brush, the brush strokes remained standing and the surface had a "nubber" appearance.

DK 176860 81 22 9

Tjæreiin Landrød had a slightly higher wt% dry matter than Drygoiin® (red) while the present stain had a somewhat lower weight than the references, 5 Both Tjäraiin Landrød and the present stain needed considerably longer than Drygoiin® (red) to be completed.

During the thermometer exposure, no blistering, cracking or peeling occurred on any of the specimens. However, the gloss reduction was very large 10 and cannot be said to be in line with the ER orientation of '' moderate gloss reduction rate ''. Drygoiin® (red) had less gloss loss than Tjyraiin Landrød and the present stain.

The present one lost 90% of the gloss before 250 hours of exposure, but 15 did not have any additional gloss loss of significance. Drygoiin® (red) and Tjäraiin Landrød had a more gradual loss of shine.

The color change was measured after 250 and 701 hours of exposure. The color change after 250 was the same for Tjæreiin Landrød and Drygoiin® (red), while 20 after 701 hours a slightly smaller color change was measured on Drygoiin® (red) than for Tjæreiin Landrød. Drygoiin © (red) was slightly bent (due to decomposition) and was shielded, while Tjæreiin Landrød was very bent (due to decomposition) but not shielded.

25 The present stain had significantly less color change than the other two products and had approximately degradation. Measurement of the contamination rate showed that the Cheraiin Landrød had the highest degree, while the present stain had the lowest.

Claims (9)

1. Woodworking protection stain, characterized in that it contains: (i) Vegetable oil coating agent comprising a combination of non-ionic emulsifier selected from C10 - C28 fatty oils and ionic. emulsifier selected from fatty alcohol alkoxylates, (li) pigment, (iii) refined wood tar, (iv) vegetable oil, (v) water and an organic solvent, or water alone, and (vi) conventional additives. A stain according to claim 1, characterized in that it comprises 10-60% by volume vegetable oil scum, 0.5-25% by weight wood tar, 0.5-25% by volume vegetable oil, and the remainder, ie, pigment, water and organic solvent, or water alone, as well as conventional additives, to 100% by volume. 20 A stain according to claim 2, characterized in that it comprises 30 - 40% by weight vegetable oil scum, 1 - 10% by volume refined wood tar, 1 - 25% by volume vegetable oil, and the remainder, ie. pigment, water and organic solvent, or water alone, and conventional additives 25 to 100 vol%, Stain according to claims 1 - 3, characterized in that the alkoxylated C10 -C26 fatty oil is ethoxylated castor oil. 5. A stain according to claims 1 to 3, characterized in that the fatty carbon alkoxylate is constituted by ethyl alcohol ethoxylate. 3 DK 176860 81 24 A stain according to claims 1 to 3, characterized in that the oil alkyd is an alkyd which is added to the emulsifier, so that it emulsifies / dissolves in water and organic solvent or water alone. 5 7, Stain according to claims 1 - 3, characterized in that the organic solvent is mineral turpentine. Pickle according to claims 1 - 3, characterized in that the vegetable oil is cooked linseed. 10 9. Use of stains According to claim 1, as a combined primer and tire paint on woodwork.