Verified by manufacturer 1 month ago
A four hour fire rated sealant.
For sealing joints in fire rated walls and floors including openings formed around building service penetrations.
KemStop FR Acrylic is designed to prevent the spread of fire and smoke through joints and openings in fire rated walls and floors including openings formed around building service penetrations. KemStop FR Acrylic will also maintain the acoustic design performance in walls and floors.
KemStop FR Acrylic cures when it is subjected to atmospheric conditions, however, it will retain a degree of elasticity for joint movement. Under fire exposure, KemStop FR Acrylic creates a robust fire seal by the formation of a durable intumescent char.
KemStop FR Acrylic can be used with a suitable filling material, i.e. stone wool or KemStop Backing material in order to secure correct width to depth ratio and to reduce the shrinking of the sealant during curing. Minimum depth and maximum width of the joints are included in the installation instructions. Thermal activation takes place at about 180°C when the material will expand (intumesce) and prevent the passage of fire and smoke for periods up to and beyond 4 hours.
Features and benefits:
Please contact Kemwell PFP for further information on this product.
Color | White |
Material | Acrylic |
Shape | Formless |
Uniclass | |
CAWS | P12/47 Sealant P12/390 Sealant |
Material | Acrylic based intumescent. |
Fire performance | |
Fire resistance | Up to class EI 240 when tested as a system.Guidance for specification option: KemStop FR Acrylic can be used with a suitable filling material, i.e. stone wool or KemStop Backing material in order to secure the correct width to depth ratio and to reduce the shrinking of the sealant during curing. Consult manufacturer's literature for details. |
Reaction to fire | Class D-s1, d1. |
Colour | White. |
Sound insulation | Single sided seal ≥12 mm depth: 62 dB; Double sided seal ≥12 mm depth: >62 dB. |
Material | Acrylic |