Boss 389+ Neutral Weatherproofing Silicone Sealant - Black (290 ml)

Product Description

The Boss 389+ Neutral Weatherproofing Silicone Sealant - Black (290 ml). Carefully engineered to offer superior performance, this silicone-based sealant ensures exceptional weatherproofing for your projects.

Key Features:

• Compatible with all structural silicone sealant.
• Good weather and temperature resistance.
• Medium modulus – with expansion/compression capability up to ± 25% of the original joint width.
• Neutral cure, with a long open time.
• Permanently elastic after curing.

Applications:

• Ideally suited for weatherproofing, waterproofing, sealing of expansion and control joints, and general-purpose glazing.
• Other bondable surfaces include anodized aluminium, concrete, cement, wood, ceramics, and painted surfaces.
• Works well with ACP, glass, glazed surfaces, and galvanized steel.