Protective coating and method of using such coating
AssigneeCal-West Equipment Company, Inc.
InventorsEdward W. Woodhall, Nicholas Kondrats
Life of this patent
Estimating the term…
Abstract
A vehicle masking material and method of use. The masking material in one embodiment includes polyvinyl alcohol, ethyl alcohol, glycerine or triethylene glycol, a surfactant, and water. The masking material is applied to a surface which is to be protected from paint overspray or other mechanical process, allowed to dry, and paint is applied. After drying of the paint, the masking material is removed by peeling or water washing.
Claims46
A method of protecting selected surfaces in vehicle painting operations from paint overspray comprising the steps of:
- a) applying a masking material to said selected surfaces to be protected, said step of applying resulting in a substantially continuous film of such masking material, said masking material comprising:
- i) at least about 10% polyvinyl alcohol by weight;
- ii) ethyl alcohol and a denaturing alcohol selected from the group of methyl alcohol and propyl alcohol, said ethyl alcohol comprising less than about 20% of said masking material by weight based on 190-proof alcohol, said denaturing alcohol comprising less than 1% of said masking material by weight;
- iii) a surfactant;
- and water;
- iv) water;
- b) painting at least a portion of a vehicle, said masking material preventing paint from contacting said surface to be protected;
- and
- c) removing said masking material for said surfaces to be protected.
The method as recited in claim I wherein said surfactant is an alkyl aryl-based compound.
A method of protecting trim portions of an automobile from paint overspray comprising the steps of:
- a) applying a masking material to said trim portions of said automobile, said step of applying resulting in a substantially continuous film of such masking material, said masking material comprising:
- i) between about 10 and 30% polyvinyl alcohol by weight;
- ii) between about 10 and 20% by weight ethyl alcohol, based on 190-proof alcohol;
- iii) a surfactant, said surfactant comprising a material selected from the group of polyethoxy adduct and ethoxylate surfactants;
- polysiloxane and acetylenic glycol;
- and
- v) water;
- b) drying said masking material;
- c) painting at least a portion of said automobile, said masking material preventing paint from contacting said trim portions;
- d) drying said paint;
- and
- e) removing said masking material and said paint from said trim portions of said automobile.
A masking composition comprising:
- a) between 5 and 15% polyvinyl alcohol by
- b) less than 15% by weight ethyl alcohol, based on 190-proof alcohol;
- c) a surfactant in an amount less than 1% by weight;
- d) greater than 0.1% plasticizer by weight;
- e) a denaturant;
- and
- f) water.
A method of protecting selected surfaces in painting operations from paint overspray comprising the steps of:
- a) applying a masking material to said selected surfaces to be protected, said step of applying resulting in a substantially continuous film of such masking material, said masking material comprising:
- i) at least about 5% polyvinyl alcohol by weight;
- ii) ethyl alcohol and a denaturing alcohol selected from the group of methyl alcohol and propyl alcohol, said ethyl alcohol comprising less than about 20% of said masking material by weight, based on 190-proof alcohol, said denaturing alcohol comprising less than 1% of said masking material by weight;
- iii) a surfactant;
- and
- iv) water;
- b) painting at least a portion of a surface, said masking material preventing paint from contacting said surface to be protected;
- and
- c) removing said masking material from said surfaces to be protected.
The method as recited in claim I6 wherein said masking material further comprises a defoamer.
The method as recited in claim I6 wherein said step of removing further comprises the step of washing said selected surfaces to be protected with water.
A method of temporarily protecting selected surfaces comprising the steps of:
- a) applying a masking material to said selected surfaces to be protected, said step of applying resulting in a substantially continuous film of such masking material, said masking material comprising:
- i) at least about 5% polyvinyl alcohol by weight;
- ii) ethyl alcohol and a denaturing alcohol selected from the group of methyl alcohol and propyl alcohol, said ethyl alcohol comprising less than about 20% of said masking material by weight, based on 190-proof alcohol, said denaturing alcohol comprising less than 1% of said masking material by weight;
- iii) a surfactant;
- and
- iv) water;
- and
- b) removing said masking material from said surfaces to be protected.
A method of protecting selected surfaces in mechanical processing operations comprising the steps of:
- a) applying a masking material to said selected surfaces to be protected, said step of applying resulting in a substantially continuous film of such masking material, said masking material comprising:
- i) at least 5% polyvinyl alcohol by weight;
- ii) ethyl alcohol and a denaturing alcohol selected from the group of methyl alcohol and isopropyl alcohol, said ethyl alcohol comprising less than about 20% of said masking material by weight, based on 190-proof alcohol, said denaturing alcohol comprising less than 1% of said masking material by weight:
- iii) at least about 0.1% by weight of a plasticizer;
- iv) surfactant;
- and
- v) water;
- b) mechanically processing a surface proximate to the selected surfaces, said masking material protecting said selected surfaces during mechanical processing;
- and
- c) removing said masking material from said surfaces to be protected.
A method of protecting selected surfaces in mechanical processing operations comprising the steps of:
- 1) applying a masking material to said selected surfaces to be protected, said step of applying resulting in a substantially continuous film of such masking material, said masking material comprising:
- i) at least about 5% polyvinyl alcohol by weight;
- ii) ethyl alcohol and a denaturing alcohol selected from the group of methyl alcohol and isopropyl alcohol, said ethyl alcohol comprising less than about 40% of said masking material by weight, based on 190-proof alcohol, said denaturing alcohol comprising less than 1% of said masking material by weight;
- iii) surfactant;
- an
- iv) at least about 0.5% glycerine by weight;
- v) water;
- b) mechanically processing a surface proximate to the selected surfaces, said masking material protecting said selected surfaces during mechanical processing;
- and
- c) removing said masking material from said surfaces to be protected.
Dependencies are inferred from the claim text.