GB2202480A - Protective coating for structures - Google Patents

Protective coating for structures Download PDF

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Publication number
GB2202480A
GB2202480A GB08701181A GB8701181A GB2202480A GB 2202480 A GB2202480 A GB 2202480A GB 08701181 A GB08701181 A GB 08701181A GB 8701181 A GB8701181 A GB 8701181A GB 2202480 A GB2202480 A GB 2202480A
Authority
GB
United Kingdom
Prior art keywords
protective coating
foil
faces
stainless steel
structures
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
GB08701181A
Other versions
GB2202480B (en
GB8701181D0 (en
Inventor
Peter Glyn Williams
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
GLYNGARD IND SERVICES Ltd
Original Assignee
GLYNGARD IND SERVICES Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by GLYNGARD IND SERVICES Ltd filed Critical GLYNGARD IND SERVICES Ltd
Priority to GB8701181A priority Critical patent/GB2202480B/en
Publication of GB8701181D0 publication Critical patent/GB8701181D0/en
Publication of GB2202480A publication Critical patent/GB2202480A/en
Application granted granted Critical
Publication of GB2202480B publication Critical patent/GB2202480B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D25/00—Details of other kinds or types of rigid or semi-rigid containers
    • B65D25/14—Linings or internal coatings
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/62—Insulation or other protection; Elements or use of specified material therefor
    • E04B1/64—Insulation or other protection; Elements or use of specified material therefor for making damp-proof; Protection against corrosion
    • E04B1/642—Protecting metallic construction elements against corrosion
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
    • E04D5/00—Roof covering by making use of flexible material, e.g. supplied in roll form
    • E04D5/04—Roof covering by making use of flexible material, e.g. supplied in roll form by making use of metal foils
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F13/00—Coverings or linings, e.g. for walls or ceilings
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F17/00—Vertical ducts; Channels, e.g. for drainage
    • E04F17/02—Vertical ducts; Channels, e.g. for drainage for carrying away waste gases, e.g. flue gases; Building elements specially designed therefor, e.g. shaped bricks or sets thereof

Abstract

A protective coating for structures such as the interior of process and/or storage vessels used in the food and beverage industries is formed by bonding sheets of flexible thin-gauge stainless steel foil into faces of the structure to form an impervious skin, e.g. 0.05mm gauge 316 formula stainless steel foil bonded by an acrylic co-polymer pressure sensitive adhesive. The structure may be a reinforced concrete vat used for brewing cider, or may be a mild steel vat or tank. Other examples of structures which may be provided with the protective coating are: walls and work surfaces in kitchens, food stores and abattoirs; exterior of buildings e.g. roofing; and the interior of flue ducts and chimneys.

Description

COATING FOR STRUCTURES This invention relates to the provision of surface coatings and finishes for fixed or moveable structures to provide improved ease of cleaning and hygiene and/or enhanced resistance to weathering, corrosion and contamination and the term "protective coating" is used to denote a coating or lining having one or more of these properties.
The object of the invention is to provide a protective coating method which is adaptable and economical, which provides a durable and easily maintained protective coating, and which can be readily applied to all types of structure including on-site application to existing structures and/or application to a structure at the time of its manufacture or erection.
According to the invention there is provided a method of forming a protective coating on a face or faces of a structure including the step of bonding one or more sheets of flexible thin-gauge stainless steel foil onto the face or faces to form an impervious skin.
Conveniently the foil has a gauge of around 0.05mm (0.002 inches) the stainless steel being the alloy designated as 316S-16 or 3165-31.
The foil may be bonded to the face or faces of the structure using an adhesive, preferably an acyrlic co-polymer pressure sensitive adhesive.
The invention further resides in a structure having a protected coating provided by the above method.
The invention has numerous practical applications in a variety of fields. Some examples of these applications are as follows:a The interior lining of process and or storage vessels and plant used in the food and beverage industries, b The lining of walls, work surfaces etc. in areas used for food handling or processing eg kitchens, cold or other food stores, Abattoirs and the like, c To form a weather resistant protective coating on the exterior of buildings and other structures eg on roofing, d In lining flue ducts and chimneys to protect their structure from corrosive gases and wastes.
A more specific example of the invention will now be more particularly described.
In the food and beverage manufacture and processing industries large capacity vats or tanks are commonly employed, for example in the cider brewing industry. Cider is particularly corrosive due to its acid content and the vats hitherto used have been costly to provide and maintain.
Traditionally timber vats were used but their capacity is limited and they require specialist skilled labour for their construction and repair as well as being difficult to sterilise and keep clean.
Vats formed from reinforced concrete are used, these need a high quality cement rendering on their interior faces which is, in turn, provided with a painted or sprayed on protective coating, eg of an epoxy resin or a lining of an inner material such as glass reinforced plastics. This is extremely costly to apply and maintain and is not durable in the long term, the patching of even a small area is costly quite apart from the lost time while the vat is out of use.
It is also known to provide vats and other process vessels fabricated from stainless steel but, in the view of the cost of the material, this becomes prohibitively expensive where vessels of any great size are required.
An existing vat formed from reinforced concrete can be re-lined on site using the invention.
0.05mm gauge foil of 316 formula stainless steel (3165-16 or 3165-31) which is the grade used for food processing equipment is provided in continuous strip typically 62.25cm in width. This material is easily handled and can readily be flexed and trimmed to shape.
The foil is used rather in the manner of wallpaper to line the entire interior surface of the vat. Typically the interior profile of the vat is already formed so that there are no right angles, 45 degree fillets providing a transition between the inner wall and floor faces and between adjoining inner faces of the walls. This facilitates the lining process though the fillets are not essential.
Preferably the floor of the vat is first faced with the foil, the adjacent strips being overlapped by a margin at least 2.55cm, the foil being bonded in place by use of an acrylic co-polymer pressure sensitive adhesive. This adhesive has very high shear load resistance and is inert and resistant to most acids, alcohol etc. The foil applied to the floor is carried upwards at the edges so that it over lies at least the horizontal fillets bounding the floor, it may be carried a short distance up the wall inner faces.
Further strips of foil are applied, preferably vertically, to the wall faces, bonded thereto as previously described and preferably carried at the upper edges over or around the top of the wall structure, and at the lower edges carried on to overlap the horizontal fillets and extend by a short margin over the foil already applied to the floor, to which it is bonded by means of the adhesive.
Applying the foil in this way ensures that there are no upwardly directed exposed foil edges in which fluid or other residues can lodge when the vat is drained. Thus the surface coating provided by the foil is substantially self-draining.
The protective coating is highly resistant to corrosion, is durable and has a long service life particularly when compared with the paints and like finishes previously used, and is easily repaired or made good if any damage should occur. Localised damage can be repaired by simply bonding a patch of the foil onto the affected area.
A similar lining procedure would be adopted with other process vats or tanks eg those formed from mild steel which again have hitherto had to have epoxy or like protective coatings.
It is also contemplated that substantial saving in capital costs can be obtained using the invention for original equipment rather than the maintenance or upgrading of existing equipment as referred to above. There will be very substantial savings in providing a mild steel vat or tank lined by the method of the invention for food or beverage processing or storage in comparision with the provision of a tank or vessel fabricated entirely from heavy gauge stainless steel plate.
The same method and process can be used in the construction or maintenance and upgrading of work surfaces, walls and the like eg in kitchens and other food handling or processing areas. It has been common practice hitherto to cover the walls of such areas with ceramic tiles but these are easily cracked or damaged necessitating replacement and the grouted joints between the tiles are not easily cleaned and have to be redone at intervals to keep them up to standard. The labour and maintenance costs involved in lining a wall or the like with the foil using the method of the invention will show a substantial saving in initial costs and will provide improved durability and service life enabling high standards of hygiene to be readily maintained.
As referred to above the invention can be used in any circumstances where a protective coating is required to provide an impervious skin of a neutral or inert material which is highly resistant to corrosion.

Claims (7)

1. A method of forming a protective coating on a face or faces of a structure including the step of bonding one or more sheets of flexible thin-gauge stainless steel foil onto the face or faces to form an impervious skin.
2. A method as in Claim 1 wherein the foil is 316 formula stainless steel with a gauge of around 0.05mm.
3. A method as in Claim 1 wherein the foil is bonded using an acrylic co-polymer pressure sensitive adhesive.
4. A method of forming a protective coating on a face or faces of a structure substantially as hereinbefore described.
5. A structure having a protective coating provided as in any preceding claim.
6. A structure as in Claim 5 being a vat, tank or other process and/or storage vessel as used in the food and beverage industries having said coating applied to at least its interior surfaces.
7. A structure having a lining or other protective coating substantially as hereinbefore described.
GB8701181A 1987-01-20 1987-01-20 Coating for structures Expired - Fee Related GB2202480B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB8701181A GB2202480B (en) 1987-01-20 1987-01-20 Coating for structures

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB8701181A GB2202480B (en) 1987-01-20 1987-01-20 Coating for structures

Publications (3)

Publication Number Publication Date
GB8701181D0 GB8701181D0 (en) 1987-02-25
GB2202480A true GB2202480A (en) 1988-09-28
GB2202480B GB2202480B (en) 1991-08-21

Family

ID=10610930

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8701181A Expired - Fee Related GB2202480B (en) 1987-01-20 1987-01-20 Coating for structures

Country Status (1)

Country Link
GB (1) GB2202480B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0872604A1 (en) * 1997-04-18 1998-10-21 Heinz-Werner Hermanns Anchoring device for embedding in concrete and process for its manufacturing
US7353981B2 (en) * 2004-01-15 2008-04-08 All-Clad Metalcrafters Llc Method of making a composite metal sheet

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1130412A (en) * 1965-10-08 1968-10-16 Rausing Anders Ruben Improvements in and relating to the manufacture of containers
GB1217563A (en) * 1968-07-04 1970-12-31 Drawn And Rolled Sections Ltd Method of adhesively securing together the surfaces of impermeable or substantially impermeable materials
GB1222847A (en) * 1968-07-04 1971-02-17 Drawn And Rolled Sections Ltd Method and apparatus for cladding elongated articles with stainless steel foil
GB1317193A (en) * 1969-07-16 1973-05-16 Lipp Xaver Tubular members and methods of making tubular members
GB1319188A (en) * 1971-01-06 1973-06-06 Foster Co L B Method of making bi-metallic pipe
GB1344667A (en) * 1970-12-01 1974-01-23 Snam Progetti Method of internally lining a shell of an apparatus
GB1374977A (en) * 1970-12-02 1974-11-20 Fairey Stainless Ltd Double-walled containers and their manufacture

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1130412A (en) * 1965-10-08 1968-10-16 Rausing Anders Ruben Improvements in and relating to the manufacture of containers
GB1217563A (en) * 1968-07-04 1970-12-31 Drawn And Rolled Sections Ltd Method of adhesively securing together the surfaces of impermeable or substantially impermeable materials
GB1222847A (en) * 1968-07-04 1971-02-17 Drawn And Rolled Sections Ltd Method and apparatus for cladding elongated articles with stainless steel foil
GB1317193A (en) * 1969-07-16 1973-05-16 Lipp Xaver Tubular members and methods of making tubular members
GB1344667A (en) * 1970-12-01 1974-01-23 Snam Progetti Method of internally lining a shell of an apparatus
GB1374977A (en) * 1970-12-02 1974-11-20 Fairey Stainless Ltd Double-walled containers and their manufacture
GB1319188A (en) * 1971-01-06 1973-06-06 Foster Co L B Method of making bi-metallic pipe

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0872604A1 (en) * 1997-04-18 1998-10-21 Heinz-Werner Hermanns Anchoring device for embedding in concrete and process for its manufacturing
US7353981B2 (en) * 2004-01-15 2008-04-08 All-Clad Metalcrafters Llc Method of making a composite metal sheet

Also Published As

Publication number Publication date
GB2202480B (en) 1991-08-21
GB8701181D0 (en) 1987-02-25

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Legal Events

Date Code Title Description
746 Register noted 'licences of right' (sect. 46/1977)
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19930120