May 2017



Plant Tour

10300 East 107th Place
Brighton, CO 80601

Click Here for Meeting Details


Sashco was registered as the Colorado Steel Sash Co. on June 15, 1936, by 29-year-old Donald J. Burch.  Don set out to make windows from steel but soon discovered that steel window putty made a huge mess. It was a lot like natural peanut butter – all of the heavy stuff would sink to the bottom, and all of the oil sat at the top.

Don set out to make a non-messy window putty formula. He made the putty one bucket at a time and eventually, homogenized window putty! He named it Elasti-glaze.

By1941, Don added a caulking to his product offerings and built his first manufacturing plant. He bought some industrial-sized bread dough mixers to put in the new building and began turning out both products in 100 and 200 gallon batches.

Following Don’s untimely death in 1954, his wife took over leadership of the company and under her tenure the company began producing Acrylic Sealant, its first water-based sealant that is still sold today under the name Big Stretch®

In the 70’s, Sashco continued its tradition of innovation and invention when it developed Lexel®, eXact Color® and the Sashco Snolkler® chinking pump. The introduction of Lexel® took Sashco from a growing regional company to a national supplier for companies like Ace and True Value Hardware.

In the 90’s, Sashco moved to its current location.  Since that move, new products have been launched, technology has evolved, and Sashco continues to be a performance front-runner in the sealant and log home products industries.  In 2015, the implementation of Lean Manufacturing practices improved efficiencies across the entire company.