Supplier of specialized sealers, stains, finishes, preservatives and restoration products for the log home industry. Perma-Chink Systems is the log home building industry's trusted partner for the tightest, greenest, and most impeccably finished log homes in the world. Although Perma-Chink Systems (PCS) is the largest manufacturer of log home chinking and sealants, we make a complete line of quality wood care products. Wood Finishes, Wood Preservatives, Wood Cleaners and Restoration Products all are Made in the U.S.A.