Building on a Tradition of Excellence

From our inception as a small local business to our continuing evolution into one of the home improvement world’s most fascinating success stories, United Gilsonite Laboratories remains committed to empowering people, improving processes and innovating products. Our team is working hard every day, leveraging talent and technology to improve our customers’ quality of life. Watch our Company History Video or scroll through the timeline below...

Gerald B. Payne forms UGL


Gerald B. Payne forms UGL with a savings of $5,000 and eight employees, and begins manufacturing asphalt products and roofing treatments.

Jefferson Avenue in Scranton, PA


UGL moves from a rented warehouse to a building on Jefferson Avenue in Scranton, PA. Currently, the site serves as our five acre manufacturing complex, corporate headquarters and East coast distribution center.

UGL develops E-Ject-O Drain Opener


UGL develops E-Ject-O Drain Opener, Glomex Furniture Polish, Parisian Wall Sizing and Gilsalume, the first asphalt aluminum paint to provide roof surfaces with heat reflecting qualities and weather protection.

UGL holds its first national sales meeting


UGL holds its first national sales meeting and introduces the DRYLOK® line: nine products formulated to waterproof basements, stop active masonry leaks, protect and beautify interior or exterior masonry walls, and paint masonry floors.

UGL introduces ZAR® Crystallite Coating


UGL introduces ZAR® Crystallite Coating, one of the first clear polyurethane finishes for wood available commercially in the United States. Prior to this, varnish had been the only available coating for hardwood floors.

1960 - 1970

Our manufacturing facility expands three times to accommodate a growing administration, increasing customer demand, and a product line that has expanded to include ZAR® Paint and Varnish Remover and DRYLOK® Ready-Mixed Sealer.

Chairman of the Board


Gerald Payne steps down as President and becomes Chairman of the Board. Malcolm (Mac) C. MacKinnon takes over the role of President.

ZAR® Wood Patch


A 33,000 sq. ft. paste products manufacturing facility is added, increasing capacity to 25,000 tons of paste products per shift and up to 80 tubes of caulk per minute. The company also introduces ZAR® Rain Stain, an assortment of 100% acrylic latex exterior stains and related products.

UGL Develops ZAR® Deck Stain


UGL develops
ZAR® Deck Stain.

UGL Product Line


25-Year Lasticaulk®, Temproof® Stove and Fireplace products, UGL® High Temperature Aluminum Paint and ZAR® Plus join the product line.

UGL opens manufacturing plant in Jacksonville, Illinois


UGL opens a 34,000 sq. ft. manufacturing plant in Jacksonville, Illinois.

UGL adds two new products


UGL adds two new products: Aqua ZAR® Water-Based Polyurethane and UGL® Adhesive Caulk.

The Illinois plant adds 6,000 sq. ft.


The Illinois plant adds 6,000 sq. ft. of manufacturing space to its footprint.

UGL expands its manufacturing capabilities


UGL expands its manufacturing capabilities yet again by building a 36,000 sq. ft. plant in Dayton, Nevada. The facility serves as the central manufacturing and distribution site for the company’s expanding Western markets.

Manufacturing facility in Jackson, Mississippi


UGL opens a 39,000 sq. ft. manufacturing facility in Jackson, Mississippi.

UGL Creates ZAR® Ultra Line


UGL creates the new ZAR® Ultra line of wood finishing products while incorporating quick drying features into most of the ZAR® line.

America's #1 Waterproofer


Mac MacKinnon assumes Gerald Payne’s role as Chairman of the Board, and names Thomas R. White as the third President of UGL. DRYLOK® Masonry Waterproofer is rated, for the second time, as America’s #1 Masonry Waterproofer by a leading consumer ratings publication.

UGL Green Product


UGL develops a Low VOC ZAR® Oil-Based Wood Stain and a Low VOC Latex-Base version of the celebrated DRYLOK® Masonry Waterproofer.

UGL Formulates Ultra Max


Using revolutionary new resin technology, UGL formulates Ultra Max, a Waterborne Oil-Modified Polyurethane which blends the quick drying properties of a latex base with the durability of an oil base finish. DRYLOK® E1 Latex 1-Part Epoxy Concrete Floor Paint is brought to market.

PM Editors Choice Awards


ZAR® Deck and Siding Clear Wood Sealer and Natural Toner Base earn the Popular Mechanics Editors’ Choice Award.

James Tates is appointed the fourth President of UGL


James Tates is appointed as the fourth President of UGL. He is the former President of The Scotts Miracle-Gro Company’s U.S. West and Latin American regions.

DRYLOK New Packaging 2019


Updated, modern packaging is rolled out for DRYLOK® Extreme Masonry Waterproofer, as well as our rebranded DRYLOK® Original Masonry Waterproofer (previously Latex Base DRYLOK®) and DRYLOK® Floor & Wall Masonry Waterproofer (previously DRYLOK® Clear).

DRYLOK New Packaging 2019


Our high performance ZAR® Interior Oil Base Stain, along with numerous other ZAR® Stains and Polys, is relaunched as a luxury brand available in four color collections: Easy Living, Global Canvas, Classic, and Trending. The new ZAR® Color Matcher enables customers to tint our stain to match virtually anything, and new 50/50 Blended Colors offer custom options limited only by the imagination.