PENOSIL 317 Neutral Silicone (24 x 300ml)

PENOSIL Neutral Silicone 317 is a high-performance, multipurpose oxime silicone ideal for professional builders, installers, and glazing contractors. Designed for sealing, filling, and weatherproofing both interior and exterior joints, this neutral-cure formula provides excellent adhesion to a wide range of building materials.

With moderate movement capability, it’s perfect for window and door installations, facade perimeter joints, and general construction sealing. The weatherproof, UV-resistant, and non-corrosive formulation ensures long-term flexibility and durability — even under harsh external conditions.

Packaging

• Supplied in boxes of 24 x 300 ml cartridges
• Single units also available – see related products

Key Features

• Excellent adhesion to concrete, PVC, glass, metals, wood, ceramics, and most plastics
• Low elastic modulus for flexible, long-lasting seals
• Weatherproof and UV resistant for exterior and exposed applications
• Neutral cure – non-corrosive on sensitive materials
• Suitable for both interior and exterior sealing and glazing
• Ideal for trade use in window, door, and facade installations

Benefits of Buying the Trade Box:

• Cost-Effective: Save money with a lower cost per cartridge when buying in bulk.
• Always Prepared: Keep a reliable stock ready for multiple installations or ongoing projects.
• Built for Trade Efficiency: Perfect for glazing contractors, builders, and fitters handling repeat work.
• Reduced Waste: Fewer single purchases mean less packaging and a more sustainable choice.
• Consistent Results: Maintain the same colour and finish across all sealing applications.

Colours:

• Anthracite
• Black
• Bronze
• Brown
• Brilliant White
• Chartwell Green
• Clear
• Cream
• Rosewood
• Toffee

Application Areas

• Sealing and weatherproofing perimeter joints around windows and doors
• Filling and sealing facade joints with moderate movement capability (+/-12.5%)
• General glazing, finishing, and sealing works for construction projects
• Ideal for both commercial and residential applications

Adheres To:

• PVC
• Glass
• Glazed Surfaces,
• Concrete
• Masonry
• Wood
• Bricks
• Metals
• Enamel
• Ceramic Tiles
• Most plastics
• Painted and varnished surfaces

Why Buy This Product?
PENOSIL Neutral Silicone 317 delivers professional-grade sealing performance trusted by trades across glazing, joinery, and construction. Its excellent adhesion, durable weatherproof protection, and wide colour range make it the go-to choice for consistent, long-lasting results on every job.

For professionals who value efficiency and reliability, the Trade Box (24 x 300ml cartridges) offers the best balance of quality and value - ideal for regular users and site work where performance matters.