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In 1964, my visionary father, Clyde “Bud” Boyle, founded General Sealants® in a two car garage in Whittier, CA. He identified a glaring need and developed a new standard in extruded sealants that quickly became a mainstay in the industry, manufacturing moldable, sticky solids into pre-formed tapes and beads in a variety of sizes. My father’s dedication to innovation and quality, coupled with his commitment to customer service, struck a chord and his new company established a firm footing in the marketplace. He didn’t last long in that garage, ultimately moving to our current headquarters in City of Industry, CA.

At the outset, our products were widely used in pipeline and construction applications, but the boom in aerospace and composite industries found my father and I innovating again, finding ourselves at the forefront of those burgeoning sectors. With the help of our technicians, we developed extruded sealants that cured at specific temperatures and could be stripped clean from the tooling dies. Over the years, General Sealants® grew from its humble beginnings into a worldwide leader in the pipeline, construction, aerospace/composite, telecommunication, automotive, and HVAC industries.

We consistently push the limits of sealant and adhesive technology, designing new techniques in order to meet the world’s increasingly challenging requirements. General Sealants® operates with a cutting-edge, research-focused approach and a global outlook. At the same time, quality is our number-one priority, ensuring our customers receive reliably consistent formulas of the highest standard. Since the beginning, we have made it our mission to find solutions to our customer’s application needs, while still providing the high level of customer service established as the foundation of my father’s business.

Innovation is a prime component of our DNA and we consistently drive the industry, pushing the limits of sealant and adhesive technologies. We continue to be a family-run business with the same values and commitment established by my father in that garage over fifty years ago. General Sealants® is now one of the largest privately owned sealant and adhesive companies in the world and our shared dedication and vision keeps us at the cutting edge. We’re not just a vendor; we are partners in your success. We’re family.

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GS® 7500 Sealant is a cross linked butyl based extruded sealant that is used extensively in the communication, OEM automotive, and industrial construction industries.

GS® 7500 Sealant

GS® 1500 Sealant is a cross linked butyl based extruded sealant that was primarily developed for automotive glass installation.

GS® 1500 Sealant

GS® SCX is a black extruded sealant that was primarily formulated and designed to be used in conjunction with heat shrinkable tubes and sleeves.

GS® SCX

GS® 5 Sealant is non-hardening butyl rubber based extruded sealant that forms an immediate bond between plastic, concrete, metal, and wood surfaces in both above and below ground applications.

GS® 5 Sealant

GS® WT-1-300 Sealant is a non-hardening ethylene propylene copolymer extruded sealant that forms an immediate and permanent bond to virtually any clean and dry surface. GS® WT-1-300 Sealant remains permanently flexible while exposed to extreme temperature fluctuations, will self-heal around bolts and fasteners after it has been punctured, and is extremely weather resistant.

GS® WT-1-300 Sealant

GS® 127T Sealant is a partially cross-linked butyl rubber base extruded sealant that provides a tenacious surface bond to most clean dry surfaces. This product is a tackier version of our GS® 127 Sealant and is non-skinning, has great elongation, and is extremely flexible at low temperatures while remaining stable at temperatures up to 300°F.

GS® 127T Sealant

GS® 500 Sealant is a butyl based extruded sealant primarily developed for applications that are exposed to high temperatures such as furnaces, water heaters, and ovens.

GS® 500 Sealant

GS® 4SC Sealant is a partially cross-linked butyl tape that exhibits aggressive tack to most clean and dry surfaces. This unique self-fusing sealant offers a high cohesive strength, excellent elasticity and weathering characteristics which allows GS® 4SC Sealant to endure expansion, contraction, vibration and joint movement.

GS® 4SC Sealant

GS® 825 Sealant is one of the most chemically advanced silicone based extruded sealants on the market and was primarily formulated for applications that see extremely high temperatures such as furnaces, ovens, and water heaters.

GS® 825 Sealant

General Sealants

In 1964, my visionary father, Clyde “Bud” Boyle, founded General Sealants® in a two car garage in Whittier, CA. He identified a glaring need and developed a new standard in extruded sealants that quic

General Sealants - Knowde

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GS® 424 Sealant is a non-curing polysulfide base sealant. The outstanding features of this sealant is its resistance to oil, jet fuel, gasoline, and solvent even at elevated temperatures of 180°F (82°C).

GS® 424 Sealant

GS® 424 Sealant is a non-curing polysulfide base sealant. The outstanding features of this sealant is its resistance to oil, jet fuel, gasoline, and solvent even at elevated temperatures of 180°F (82°

GS 424 Sealant - General Sealants - Polysulfides - Knowde

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GS® 424 Sealant

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