PENOSIL 340/340c Facade & Glazing Silicone (300ml)

PENOSIL Facade & Glazing Silicone 340/340c – High-Performance Neutral Alkoxy Silicone Sealant
PENOSIL Facade & Glazing Silicone 340/340c is a premium neutral alkoxy silicone sealant designed for professional facade and glazing applications. Engineered for long-term flexibility, exceptional weather resistance, and superior bonding, it delivers a reliable seal on a wide range of porous and non-porous substrates—making it a top choice for construction, glazing, cladding, and exterior finishing works.

With its excellent movement capability and low elastic modulus, this sealant compensates for structural movement without cracking or losing adhesion. It forms a durable, flexible rubber joint that stands up to the harshest conditions, offering full UV, ageing, and weather resistance. The non-sag formula ensures clean application on both vertical and horizontal joints, while its neutral, non-corrosive formulation makes it safe on sensitive materials, including metals.
Whether you're sealing facade panels, glazing units, perimeter joints, or mixed material interfaces, PENOSIL 340/340c ensures lasting performance for both interior and exterior projects.

Included: 1 x 270 ml cartridge
Trade Box also available - see related products

Key Features:

• High movement capability for demanding facade and glazing joints
• Low elastic modulus for stress-free bonding
• Fully weatherproof for long-term outdoor durability
• UV and ageing resistant
• Ideal for curtain walling and glazing works
• Non-sag – suitable for vertical and horizontal applications
• Neutral cure, non-corrosive to metals
• Excellent adhesion to porous and non-porous materials
• For interior and exterior sealing

• Facade panel joint sealing
• Glazing and curtain wall installations
• Window and door perimeter sealing
• Sealing mixed materials on building envelopes
• General construction sealing where flexibility is essential

Adheres To:
Concrete, stone, bricks, masonry, roof tiles, wood, aluminium (anodised and painted), PVC, glass, laminated glass, ceramic tiles, polycarbonate, polyacrylate.

Why Buy This Product:
PENOSIL Facade & Glazing Silicone 340/340c delivers the high elasticity, movement capability, and long-term weather protection demanded in modern facade and glazing projects. Its professional-grade adhesion, neutral cure chemistry, and proven outdoor durability make it a trusted solution for achieving clean, flexible, and reliable seals across a wide range of materials.