Seal Systems

Soudal – Silirub B1

Silirub 501 B1 is a high quality, neutral, highly elastic, one-component sealant based on silicones which conforms to the DIN4102 B1 standard for fire retardancy and has a fire rating of up to 4 hours in certain joint configurations (tested to BS 476/20).


– all usual building joints – all glazing application – joints with high fire retardant qualities