Process for reinforcing a ferrous metal surface
First Claim
1. PROCESS FOR REINFORCING A FERROUS METAL STRUCTURE, WHICH COMPRISES BLASTING THE METAL STRUCTURE TO EXPOSE AN OXIDE-FREE METAL SURFACE, PROMPTLY COVERING SAID SURFACE WITH A LAYER HAVING A THICKNESS FROM ABOUT 2 TO 10 MILS OF UNSATURATED ISOPHTHALIC POLYESTER RESIN, CURING THE FILM TO A POINT WHERE ITS BODY IS SUBSTANTIALLY SOLID AND ITS SURFACE EXHIBITS SLIGHT TACKINESS, SIMULTANEOUSLY SPRAYING A MIXTURE OF UNSATURATED ISOPHTHALIC POLYESTER AND POLYMERIZATION CATALYST, A MIXTURE OF UNSATURATED ISOPHTHALIC POLYESTER AND ACCELERATOR, AND CHOPPED GLASS FIBER ON SAID FILM TO DEPOSIT AN UNSATURATED ISOPHTHALIC POLYESTER RESIN-GLASS FIBER LAYER HAVING A THICKNESS IN EXCESS OF 100 MILS, WORKING SAID LAYER TO EXPEL AIR AND DEPRESS THE GLASS FIBER BELOW THE SURFACE OF THE RESIN.
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1 Claim
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1. PROCESS FOR REINFORCING A FERROUS METAL STRUCTURE, WHICH COMPRISES BLASTING THE METAL STRUCTURE TO EXPOSE AN OXIDE-FREE METAL SURFACE, PROMPTLY COVERING SAID SURFACE WITH A LAYER HAVING A THICKNESS FROM ABOUT 2 TO 10 MILS OF UNSATURATED ISOPHTHALIC POLYESTER RESIN, CURING THE FILM TO A POINT WHERE ITS BODY IS SUBSTANTIALLY SOLID AND ITS SURFACE EXHIBITS SLIGHT TACKINESS, SIMULTANEOUSLY SPRAYING A MIXTURE OF UNSATURATED ISOPHTHALIC POLYESTER AND POLYMERIZATION CATALYST, A MIXTURE OF UNSATURATED ISOPHTHALIC POLYESTER AND ACCELERATOR, AND CHOPPED GLASS FIBER ON SAID FILM TO DEPOSIT AN UNSATURATED ISOPHTHALIC POLYESTER RESIN-GLASS FIBER LAYER HAVING A THICKNESS IN EXCESS OF 100 MILS, WORKING SAID LAYER TO EXPEL AIR AND DEPRESS THE GLASS FIBER BELOW THE SURFACE OF THE RESIN.
Specification