Product Description:
The 3M SIL100 Clear is a high-performance 100% silicone sealant designed for weather-resistant sealing, bonding, and repair work. It provides strong adhesion and flexibility, making it suitable for a wide range of construction and industrial materials such as gutters, roofing, awnings, water tanks, coated metal panels, automotive, and marine applications.
Made from pure silicone, the SIL100 offers excellent elasticity, durability, and heat resistance from −62°C to 204°C. The neutral-cure, odorless, non-corrosive formula ensures safe use on metals and delicate surfaces while fully sealing gaps to prevent leaks.
Key Features:
 
 
100% pure silicone formulation — high elasticity and long life
 
 
Excellent weather, UV, and temperature resistance (−62°C to 204°C)
 
 
Neutral-cure, low-odor, non-acidic formula — safe for metals
 
 
Adheres to multiple substrates: glass, ceramic, aluminum, steel, zinc, copper, brass, painted surfaces, plastic, and non-oily wood
 
 
Smooth, transparent finish for clean professional applications

Recommended Applications:
 
 
Construction: gutters, roofing, awnings, water tanks, coated metal walls
 
 
Automotive, marine, and industrial sealing and repair work
 
 
Suitable for sealing joints, cracks, and leaks in various materials

How to Use:
 
 
Clean the surface thoroughly — remove dust, oil, and moisture.
 
 
Insert the cartridge into a standard silicone gun.
 
 
Cut the nozzle tip at a 45° angle and apply along the joint or surface.
 
 
Smooth the sealant before curing for a clean, watertight finish.