A new technology to improve the performance and simplify assembly of double-glazed windows was developed and patented by Sashlite LLC in Westport, Conn., with two technology partners—adhesive and sealant manufacturer H.B. Fuller Co., St. Paul, Minn., and profile extruder Dayton Technologies, Monroe, Ohio. Instead of using the usual metal or foam spacers and a silicone sealant to hold the insulated glass panel in the PVC frame, Sashlite patented a profile design with an integral U-shaped PVC spacer. H.B. Fuller developed the chemically curing sealant that bonds the glass and PVC.
Full commercialization of the new lineals began this summer with production by Dayton Technologies, Chelsea Building Products in Oakmont, Pa., and Mikron Industries in Kent, Wash. These profiles must hold tolerances three times tighter than normal for fenestration—±0.005 in. instead of the usual ±0.015 to 0.02 in. Profile extruders do not need a license, but their material quality and extrusion process must be validated by H.B. Fuller. Window fabricators need a technology license and special equipment to assemble the windows. Tel: (203) 227-9912 • www.sashlite.com