This article first appeared in the PB September 2002
issue of Pro Builder.
Pro-Series PR-255 and PR-256 are general-purpose polyure-thane sealants for window, siding, door and roof applications. PR-255 is for a smooth appearance; PR-256 cures to a textured look. Both are paint-able and remain permanently flexible with 25% movement capability, OSI says. Various colors are available.
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