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8/1/2005

Low-temp/low-profile resin

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Hexion Specialty Chemicals' (Columbus, Ohio) trademarked Veriflect 2290, a new low-temperature, low-profile unsaturated polyester resin for infusion and resin transfer molding (RTM), is formulated to eliminate surface flaws caused by fabric print-through and volumetric shrinkage that often occurs when conventional

Hexion Specialty Chemicals' (Columbus, Ohio) trademarked Veriflect 2290, a new low-temperature, low-profile unsaturated polyester resin for infusion and resin transfer molding (RTM), is formulated to eliminate surface flaws caused by fabric print-through and volumetric shrinkage that often occurs when conventional open-mold polyesters are used in low-temperature closed molding processes. The product reportedly infuses reinforcements quickly, allowing for rapid mold turnover, and produces a part that mirrors the mold, says the company. The resin cures safely despite thickness variations from 100 mil to 350 mil in the same part and can be used with commercially available catalysts to vary the exotherm and cure cycle to fit the manufacturing need.

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