Mccoy Soudal is one of the largest manufacturers of a Sealants, Adhesives and Polyurethane (PU) Foams in the world. Soudal has a presence in more than 140 Countries with own affiliates in the 75 countries.

Silirub 989 is a high performance, low odor, one-component joint and glazing sealants, based on neutral silicone. Silirub 989 has been developed for weather sealing of joints in the façade applications.

Key Features:

• Long open time
• Compatible with PVB-film
• Compatible with sealants for double glazing based on polysulphides and silicones
• Very easy to apply
• Colourfast and UV resistant
• Permanent elastic after curing
• Very good adhesion on many materials
• Corrosion free
• Resistant against UV-radiation, rain, frost, wind, ozone and extreme temperatures
• Excellent adhesion properties on glass, laminated glass, coated aluminium, galvanised steel, concrete and masonry

Applications: 

• Weatherseal in curtain wall applications
• All usual building, connection, expansion and dilatation joints
• Excellent for double glazing system applications

Technical Details:

• Basis : Polysiloxane 
• Consistancy : Stable paste 
• Curing system : Moisture curing 
• Skin formation : 25 - 30 min 
• Curing speed * (20°C / 65% R.H.) : Ca. 2 mm/24h 
• Hardness : 35 ± 5 Shore A 
• Density : Ca. 1,45 g/ml 
• Elastic recovery (ISO 7389) : > 80 % 
• Maximum allowed distortion : 25 % 
• Temperature resistance : -60 °C → 180 °C 
• Max. tension (DIN 53504) : 1,60 N/mm² 
• Elasticity modulus 100% (DIN 53504) : 0,60 N/mm² 
• Elongation at break (DIN 53504) : Ca. 500 % 
• Application temperature : 5 °C → 35 °C

Shelf life And Storage: 12 months in unopened packaging in a cool and dry storage place at temperatures between +5°C and +25°C.