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          Home » Products » Silicone Sealant Construction Adhesives » BOSS 383 Weather Seal Silicone Sealant

          BOSS 383 Weather Seal Silicone Sealant

          BOSS 383 Weather Seal Silicone Sealant
          BOSS 383 Weather Seal Silicone Sealant
          Product Code : Boss 383
          Brand Name : BOSS
          Product Description

          BOSS 383 Weather Seal Silicone Sealant

          Eliminates the Use of Frame work for Mirror Fixing Weather Seal Silicone Sealant is an one part neutral cure, medium modulus, lowodor, construction grade sealant that offers excellent adhesion, weather ability and compatibility with wide variety of materials. BOSS ® 389 is ideally suited for weather proofing, waterproofing, sealing, expansion & control joints and general purpose glazing. It has excellent adhesion to glass, glazed surfaces, galvanized steel, anodized aluminum, concrete, cement, wood, ceramics, painted surface and many plastics.

          BOSS 383 Weather Seal Silicone Sealant meets or exceeds the requirements of the following specifications:

          • ASTM C920-86,
          • TT-S-001543A and
          • TT-S-00230C.
          • One Part , no mixing required
          • Easy to apply
          • Excellent adhesion to most common building materials
          • Low Odor
          • Non-Corrosive to metal
          • Permanently Flexible
          • Weatherproofs / Waterproofs
          • UV resistant



          Specific Gravity



          Black, Grey and White



          Tack-Free Time

          > 90min

          Cure Time at 75°F (24°C) and 50% RH (3/8 thickness)

          24 hours

          Full Cure time

          7- 10 days

          Tooling time

          25-30 min

          Extrusion Rate

          275 g/min

          Cured Physical



          Durometer Hardness, Shore A, points


          Tensile Strength, psi


          Dynamic Movement Capability Cycled at 1/8 hr.1/8min.%

          ± 30

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