Palmer International, Inc.

G Fred Lauman

Daniel Goldberg

A cavitation resistant polymer and coating are provided by curing a composition containing from about 24 to 48 wt. % of a liquid epoxy resin, from about 24 to 48 wt. % of a blocked isocyanate prepolymer, from about 4.2 to 12 wt. % of a rheological additive at least 65% of which is an amorphous silica flatting agent, from about 10 to 14 wt. % of a curing agent, from about 1 to 4 wt. % of a plasticizer, and from about 0.1 to 0.6 wt. % of a silane. The composition can contain pigments, fillers and other auxillary agents.

Cavitation-resistant polymer and coating

An abrasion resistant polymer and coating composition comprising from about 24 to 48 wt. % of a liquid epoxy resin, from about 24 to 48 wt. % of a blocked isocyanate prepolymer, from about 4.2 to 12 wt. % of a rheological additive, from about 10 to 14 wt. % of a curing agent, from about 1 to 4 wt. % of a plasticizer, and from about 0.1 to 0.6 wt. % of a silane. The coating composition is especially effective in resisting abrasion from solids entrained in fluids in fluid flow environments.

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Chalfont, PA, United States of America

G Fred Lauman