Products for preserving, chinking, caulking and staining log homes.Sashco, Inc. Log Home Maintenance and restoration products and sealants for conventional home construction. On June 15, 1936, Donald J. Burch decided to go into business as the Colorado Steel Sash Company. The original site was located in Denver on Cherry Creek Drive. It started out as a new window manufacturer, but it wasn't long before the need for material to glaze steel windows changed the company's course to become a sealant manufacturer. The Colorado Steel Sash Company became known throughout building trades for its integ