PENOSIL FireStop Silicone 331 Neutral silicone - White

PENOSIL FireStop Silicone 331

A neutral fire rated silicone sealant for fireproofing with increased fire resistance for joints exposed to fire. Specially designed for weatherproofing and sealing of exterior and interior expansion joints where fire resistance is required.

Size: 300ml cartridge

VALUES

• Withstands fire up to 4 h
• High movement capability (±25%)
• UV, weather and ageing resistant
• Halogen, solvent and asbestos free
• Low odour
• Excellent adhesion on many materials

APPLICATION AREAS

• Weatherproofing and sealing expansion joints where fire resistance is required.
• Sealing fire-proof window- and door frames.
• Sealing ventilation and smoke ducts, cable passages, pipe penetrations, etc.
  
  

ADHERES TO

• Plasterboard
• Concrete
• Glass
• Masonry
• Wood
• Ceramics
• Metals

Please Note: *Reduced to Clear Special This product expired 26/10/2024. This product is sold with a money-back-guarantee.

Money Back Guarantee - After a sealant has expired, the properties of a sealant can’t be ensured, however a sealant stored under ideal conditions can remain effective for many months after its expiry. We offer a Money-Back guarantee in the unlikely event your tube is faulty. Please contact us with details of your purchase to arrange your refund within 30 days of purchase.

LIMITATIONS
Cannot be applied on bitumen or on building materials which might bleed oils, plasticisers, or solvents (e.g. natural rubber, chloroprene or EPDM).
Does not adhere to polyethylene (PE), polypropylene (PP) or PTFE (Teflon®).
Do not use at temperatures below +5°C.
Not recommended for sealing natural stone surfaces, e.g. marble and granite.

TIPS
Surfaces to be sealed must be clean, dry and free from any dust, loose particles, oil and old sealant residues. Non-porous surfaces should be cleaned with solvent and a clean, non-fluffy cotton cloth. Excess solvent should be removed with a clean cloth.
If needed, cover the adjacent surfaces with masking tape. For wide joints, use a backer rod to ensure joints of correct thickness and shape. Ensure sufficient ventilation at the working area.
During the curing process, make sure that sealed surfaces stay clean and are not under mechanical stress.
Due to the wide variety of construction materials, we recommend a preliminary compatibility test. If necessary, surfaces can be primed in order to improve the adhesion.
Uncured product can be removed with PENOSIL Multipurpose Wipes 943 or solvent. Cured product can be removed mechanically.
Application temperature between +5°C and +40°C.