Impregnation is the fastest and most effective method of eliminating the problems of porosity and interior corrosion in metal castings, forgings, powdered metal parts, and plastics.
Impregnation is beneficial for sealing porosity prior to plating, conversion coating, painting and other such surface finishes.
More and more manufacturers are specifying impregnation for all parts, not just for purposes of salvage, but as part of their guarantee against defects.
Subject matter wherein the fabric is coated or impregnated with a material which is neither a foamed material nor a metal or alloy layer, which is not associated with any other preformed layer other than additional coatings or impregnations, and which is not characterized by a particular or differential weave or knit pattern.
Subject matter wherein the coating or impregnation is weather proof, water vapor resistant, or moisture resistant, the weather proofness or water vapor resistance or moisture resistance being specifically stated.
Subject matter wherein the coating or impregnation which is not specified as improving the "hand" or increasing the softness of the fabric acts as a lubricant or a surface friction reducing agent.
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