Fire-rated sealants – elastic and flexible fire protection
Fire-rated sealants for passive fire protection include, for example, flame-retardant or self-expanding single-component sealing materials. They are elastic and designed for use in joints and gaps across a wide range of applications that extend from fire-rated glazing and fire doors, safety storage cabinets/boxes and ventilation ducts to pipe and cable penetrations in ships, trains or aeroplanes. Thanks to their fire-retardant properties, the sealants help to increase the fire resistance of building components by delaying the penetration of heat and flames.
Fire-rated sealants by KuhnOdice
Our range of fire-resistant sealants, which are available in the form of paste or putty, acrylate, silicone or polyurethane, is extremely broad and offers a myriad of options for both indoor and outdoor use. All sealants have been properly tested and are certified to meet the requirements for their respective fire protection use.
Benefits of fire-rated sealants
- Ease of application: Our sealants are single-component products and thus both ready to use and easy to apply without the need for mixing with any other materials.
- Flexibility: As many KuhnOdice sealants remain flexible even after curing, they can compensate for movements in the structure without crack formation.
- Versatility: The sealants can be used on different materials such as concrete, metal, wood and plasterboard, and they are suitable for a wide range of fire protection applications in many different industries.
Properties of fire-rated sealants
Fire resistance: Fire-rated sealants have been specially developed to exhibit high resistance in the event of a fire. They are capable, for example, of withstanding temperatures of over 1.000 °C without losing their functionality.
Joint integrity: In contrast to conventional sealants, fire protection sealants retain their shape even at high temperatures. They do not open at all or open only minimally in the area of the intact material, which is crucial for maintaining their fire protection function.
Smoke barrier: Fire protection sealants form an effective barrier against the spread of toxic smoke, which conventional sealants usually fail to provide.
Expansion properties: Many of these sealants feature expansion properties. When exposed to heat, they swell and form an insulating layer that prevents the spread of fire and smoke.
Application examples for fire-rated sealants
Fire-rated sealants are used in fire-resistant structures where expansion joints, penetration seals or means for filling cavities are required to obtain fire protection classification and thus the relevant official go-ahead for use. Fire-rated sealants are designed for:
- filling cavities, joints and gaps
- assembly and installation of window and door frames
- fastening in place and fire-resistant sealing of door frames and wooden frames
- securing connection joints of suspended ceilings, partition walls and floor panels subject to fire resistance requirements
- sealing mirror glass on fire-resistant or flame-retardant glazings
penetration seals - sealing of ventilation ducts
- sealing of cable and duct shafts
- connecting partition walls to masonry
- filling openings in pipe and cable ducts
How fire-rated sealants work
The usually pasty sealant expands when exposed to heat and unfolds its protective function in the form of a robust barrier:
ACRYLODICE F before exposure to fire: pasty, putty-like, intumescent building material.
ACRYLODICE F after exposure to fire: the material expands without expansion pressure from a temperature of approx. 200 °C and has a mainly flat direction of expansion.
Why choose fire-rated sealants by KuhnOdice?
Our sealants come as ready-to-use one-component products that combine maximum convenience with exceptional fire resistance. As they swell (‘foam up’) when exposed to heat, they are the solution of choice for environments where reliable sealing against fire and smoke is required.
Get in touch
KuhnOdice Germany GmbH
Jaegersgrund 10
57339 Erndtebrueck
Germany