OSI Sealants Inc. is a leading manufacturer of caulks, sealants, adhesives and wood patching products with more than four decades of experience in developing and supplying the highest quality products.

Professional builders and D-I-Y’ers across North America benefit from the continuous innovation that OSI puts into its family of superior products that meet every application need.

OSI Sealants, Inc. boasts a healthy and popular array of products featuring Pro-Series®, POLYSEAMSEAL®, PL®, and Nail Power® -- many of the strongest brand names in the building industry.

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