Silicone Sealant for Professional Contractors in Ontario

NuFlex^® 302 General Purpose Silicone Sealant is a medium modulus one-component acetoxy cure, non-sag caulking material. NuFlex^® 302 General Purpose Silicone Sealant cures to form a sturdy, rubbery solid upon exposure to moisture in the air. Due to its non-sag properties, the sealant can be applied overhead or on sidewall joints and surfaces without sagging, slumping, or running off. It adheres to most non-porous construction substrates.

At The Contractors Site, we supply professional-grade silicone sealant for contractors, tradespeople, and building product professionals across Ontario. Whether you're sealing around windows, penetrations, bathroom fixtures, or exterior joints, the right silicone sealant is the difference between a job that holds and a call-back that doesn't.

NuFlex^® 302 has excellent resistance to weathering, vibration, moisture, ozone, and extreme temperatures. It may be applied in sub-zero temperatures without loss of extrusion or physical property characteristics and is effective to -46°C (-50°F)

Flexible Bond That Moves With the Building

Ontario's climate demands sealants that can handle the thermal movement buildings experience from January to August. Silicone's elastomeric properties allow it to compress and extend with the joint as temperatures change — maintaining the watertight seal year after year without cracking, pulling away, or requiring annual maintenance.

Features:

• Acetoxy cure
• 100% silicone
• NuFlex 302 has achieved GREENGUARD GOLD Certification
• Certified by NSF
• Water-resistant before, during, and after cure
• RTV (Room Temperature Vulcanization)
• Adheres to many substrates
• Wide temperature range performance
• 50-year durability
• Can be applied in sub-zero temperatures

Bonds to:

• Metal
• Laminates
• Glass
• Wood
• Silicone resin
• Vulcanized silicone rubber
• Ceramic
• Natural and synthetic fibres
• Painted surfaces
• Most plastics

Basic uses include caulking and sealing around:

• Form-in place gaskets where there is no oil contact
• Duct joints
• Areas that need weather stripping
• Sinks, basins, showers, and tubs

Other uses include:

• General repairs on a variety of substrates
• Non-load-bearing bonding
• Non-stick coating for concrete moulds and forms