Background technology:
Usually all there are various defectives in the basal plane of plastering of exterior wall in, all will criticize Puttying before swabbing.Present known putty is that this putty cohesive strength is low with compositions such as talcum powder, carboxymethyl cellulose, 107 glue and white glue with vinyl, poor water resistance, shrinkability is big, therefore, easily hollowing, come off and chap; Perhaps mix filler by resin emulsion and make, its cohesive force improves greatly, but because coating is thin, the basal plane planeness is required height, and the ability of filling cavity is also poor.
Summary of the invention:
The purpose of this invention is to provide a kind of cohesive force height, flexibility and water-repellancy is good, the filling cavity ability the is strong permeability water-proof leveling putty that is used for new and old cement, concrete exterior wall face.This putty has similar temperature coefficient of dilatation to cement, can effectively avoid of the influence of the tiny cracking of cementitious rendering to coating, its infiltration type adhesive property can be bonded in smooth surface layer well, by this greasy layer putty coating is plastered and combines together fully with at the bottom of the cement based.
Technical scheme of the present invention is as follows:
The invention is characterized in: by the high bonding of No. 1 cement based seccotine, concentration is 50% polymer emulsion and water by weight ratio 65~72: 8~9: 20-25 is formulated.
The high bonding of No. 1 cement based of the present invention seccotine is No. 1, ceramics glue.
Concentration of the present invention is that 50% polymer emulsion is vinylformic acid or silicon third, fluoro-resin emulsion.
It is as follows that the present invention criticizes the concrete constructional method of scraping in body of wall:
1, by putty of the present invention: thinner: the construction proportioning of cleaning water=8: 1: 2.5, dilute 1 part of thinner with 2.5 parts of water earlier, and then allocate putty of the present invention, must stir with electric hand drill during allotment; After the present invention and thinner and the water allotment, be 4 hours storage period the longest, surpasses can not use after 4 hours, and the solidified slurry can not use;
Should put earlier when 2, constructing and mend one time, and then completely criticize one time;
3, get final product sand milling after the greasy layer of the present invention drying bleaches, significantly criticize tool marks and thick poor greasy face place, must root out or sand flat;
4, after the present invention's construction finishes, must require at least with water curing four times: planeness≤1mm, the surface does not have obviously outstanding batch scratch, scratches no dry linting phenomenon with nail, and cohesive force is qualified.
The invention has the advantages that: cohesive force height, flexibility and water-repellancy are good, the filling cavity ability is strong, can be used for new and old cement, concrete exterior wall face, can effectively avoid of the influence of the tiny cracking of cementitious rendering to coating, its infiltration type adhesive property can be bonded in smooth surface layer well, by this greasy layer putty coating is plastered and combines together fully with at the bottom of the cement based.
Embodiment:
Embodiment 1:
The present invention is that 50% polymer emulsion and water 70: 8: 22 by weight ratio are formulated by the high bonding of No. 1 cement based seccotine, concentration.
The high bonding of No. 1 cement based of the present invention seccotine is No. 1, ceramics glue, as being produced by German COLOYS.
Concentration of the present invention is that 50% polymer emulsion is vinylformic acid or silicon third, fluoro-resin emulsion, the vinylformic acid of producing as ROHM AND HAAS factory.
Embodiment 2:
The present invention is that 50% polymer emulsion and water 69: 9: 22 by weight ratio are formulated by the high bonding of No. 1 cement based seccotine, concentration.
Inspection after construction of the present invention is reported as follows:
Test event | Standard-required | Measured result | The individual event conclusion |
Degree (cm) | ??9~13 | ????9 | Qualified |
Time of drying (h) | ??≤18 | ????<18 | Qualified |
Draw-off property | Easily be coated with and scrape, not crimping | Easily be coated with and scrape, not crimping | Qualified |
Snappiness (mm) | ??≤100 | ????<100 | Qualified |
Grinability (adding No. 400 liquid honings of 200g counterweight 100 times) | Easily be polished into even smooth-flat-surface, do not have obvious white point, be not stained with sand paper | Meet the requirements | Qualified |