Fire Rate PU Sealant

Kryfix Fire Rate PU is a fire rated intumescent, low modulus, one component, Class-A polyurethane sealant. When cured it will form a tough, flexible fire rated seal capable of cyclic expansion and compression movement of 50% (± 25%) of the original installed joint width. Kryfix Fire Rate PU is resistant to normal weathering conditions such as rain, sunlight, snow, sleet, ozone, atmospheric contamination and pollution.

Uses

Kryfix Fire Rate PU can be used on:

• Insitu concrete floors and walls
• Precast and tilt up panels
• Brickwork and blockwork
• Rendered masonry
• Plasterboard (Fire rated and/or acoustic rated)
• Fiber cement sheet (Fire rated and/or acoustic rated)

Application

Kryfix Fire Rate PU should be dispensed from the sausage by means of a sausage barrel gun. Sausage application:

• Clip the end of the sausage and place in a barrel gun
• Screw the end cap and nozzle onto the barrel gun
• Use the trigger to extrude the sealant. To stop; depress the catch plate.

Apply Kryfix Fire Rate PU in a continuous operation using enough pressure to properly fill the joint. Tool off the surface of the sealant with an appropriate sized spatula or trowel. Apply sufficient pressure to leave a smooth, consistent surface and ensure maximum contact with the interface of the joint.