HS-995 isn’t your average hardware store caulk. It’s a one-part, neutral-cure silicone structural sealant. This means it’s engineered not just to fill gaps, but to create a high-strength, flexible bond that becomes an integral part of your structure.

✅ Bonds to Virtually Anything, No Primer Needed! Experience tenacious adhesion to an incredible range of materials: glass, aluminum, coated steel, ceramics, concrete, stone, wood, fiberglass, and most plastics. HS-995 forms a powerful, lasting connection where others fail.

✅ Defy the Elements: 100% Weatherproof & UV Proof From the scorching sun and tropical downpours of Ghana to freezing temperatures, HS-995 stands invincible. It is exceptionally resistant to UV radiation, ozone, and extreme weather, ensuring it will not crack, crumble, or yellow over time. Your seal remains pristine and effective for decades.

✅ Extreme Flexibility That Moves With You Buildings settle, materials expand and contract. HS-995 is engineered with outstanding movement capability (up to $\pm 25\%$), absorbing shifts and vibrations without breaking its bond. This elasticity ensures a durable, crack-proof seal in expansion joints and high-stress areas.

✅ Safe for All Surfaces (Even the Delicate Ones!) Thanks to its neutral-cure chemistry, HS-995 releases no corrosive acids during curing. This makes it the perfect choice for sensitive materials like uncoated metals, marble, granite, and mirrors, guaranteeing no staining or damage. Plus, its low-odor formula makes for a much more pleasant application experience.

Unleash the Power of a True Structural Adhesive