Abstract: The invention relates to a method of preventing a material from adhering to a surface. In a preferred embodiment, the material comprises weld spatter and the surface is located near a welding operation. The method comprises coating the surface with a slurry comprising a mineral material in water. The slurry contains from 10% to 70% solids by weight and not more than 5% by weight of a material that decomposes when heated to 1000° F. for one minute. The slurry is allowed to dry to form a barrier coating before the material contacts the surface.

Abstract: The invention relates to a method of preventing a material from adhering to a surface. In a preferred embodiment, the material comprises weld spatter and the surface is located near a welding operation. The method comprises coating the surface with a slurry comprising a mineral material in water. The slurry contains from 10% to 70% solids by weight and not more than 5% by weight of a material that decomposes when heated to 1000° F. for one minute. The slurry is allowed to dry to form a barrier coating before the material contacts the surface.

Abstract: A cleaning composition for paint delivery systems includes 3-90% of an organic solvent which may comprise one or more aromatic hydrocarbons, aliphatic hydrocarbons and aliphatic esters. The composition also includes between 0.5 and 30% of a hydroxy carboxylic acid such as glycolic acid, as well as a coupling agent which may comprise one or more alcohols, glycols or glycol ethers.

Abstract: A paint stripping composition includes a peroxide, water and an organic solvent. The composition has a near-neutral pH. The solvents may include benzyl alcohol and/or cyclohexane dimethanol, and the peroxide may comprise hydrogen peroxide or urea peroxide.

Abstract: A cleaning composition includes a liquid vehicle having dispersed therein, a particulate, organic, polymeric material. This composition is used for cleaning encrustations from the interior surface of tubes or other vessels, particularly those of paint delivery systems. Such cleaning is accomplished by maintaining a flow of the cleaning composition through the vessel. The vehicle may comprise organic or inorganic solvent mixtures and may include detergents, surfactants and similar ancillary ingredients.