Expansion joints, seams and void spaces

Linear seam sealants

To comply with building regulations for fire safety, buildings must be divided into fire compartments. Fire resistance of the walls and ceilings between these fire separations can be rendered ineffective by seams, expansion joints and void spaces.

Walraven’s Pacifyre® and Tangit sealing products have been tested and approved for effectively fire stopping seams, joints and cracks between walls, floors and ceilings of fire compartments. They are also effective for sealing annular joints around (insulated) pipes, fire collars and sleeves. Our solutions prevent the spread of fire and smoke through joints in fire rated separations, and provide excellent adhesion to most substrates. An overview of our acrylic and silicone fire sealants can be seen below.

Tested for fire safety

Our products are tested by accredited European testing Institutes for their fire resistance in compliance with EN 1366-4 & EN 1366-3 and provide a fire resistance that is classified in accordance with EN 13501-2:2003 up to EI 240 inclusive. That is to say, 240 minutes of integrity and insulation, depending on material and configuration.

The Walraven Pacifyre Acrylic and Silicone Sealants are safe to use. The emission level is A+ and the Acrylic has achieved the highest possible EC1^plus classification according the EMICODE^® system. It also has a sound reduction performance of up to 62dB according EN ISO 717-1.

Walraven Pacifyre® A: Acrylic Fire Sealant

Features and Benefits

• Fire resistant and smoketight up to 4 hours
• Suitable for static linear joints in walls and floors with max. 12.5% movement
• For sealing annular joints around pipes, fire collars and fire sleeves or wraps
• For sealing cracks in concrete and plaster
• Excellent adhesion to many porous substrates
• Sound reduction up to 62dB
• Colour-fast, waterproof and paintable after curing
• Remains elastic after curing
• Indoor emission: EC1 Plus / level A+
• Skin formation in approx. 20 min.
• Curing rate 1mm/24h
• Shrinkage approx. 15% (DIN 52451)
• Activation temperature ≥ 120 0C
• Temperature resistant between -20 0C -and +80 0C
• Application temperature between +5 0C and +30 0C
• CE marked
• Tested according to EN 1366-4, EN 1366-3 & EN ISO 717-1

Walraven Pacifyre® S: Silicone Fire Sealant

Features and Benefits

• Fire resistant and smoketight up to 4 hours
• Suitable for linear joints in walls and floors with max. 25% movement
• For sealing annular joints around pipes, fi re collars and fire sleeves or wraps
• Very good adhesion to most substrates
• 16 Shore A hardness
• Temperature resistant between -10 0C and +140 0C
• Application temperature between +5 0C and +30 0C
• Indoor emission level A+
• Colour-fast and UV-stable
• Remains permanently elastic after curing
• Skin formation in approx. 20 min.
• Curing rate 1mm/24h
• Fire class B1 (DIN 4102-2)