Sika Boom-551 Multiposition - Expanding PU Foam - Sika

Sika Boom-551 Multiposition - Expanding PU Foam - Sika

Sika Boom-551 Multiposition is a self-expanding, single-component polyurethane foam for spray application.
Its special formulation, combined with the safety valve , allows multi-position use (application from any angle).

Features

• Multi-positioning (applicable at any angle).
• Does not contain chlorinated paraffins or halogens.
• Professional application with gun.
• Mono-component, ready to use.
• Can be cut, sanded and painted.
• Effective sound dampening.
• Good adhesion to many building materials.
• Good thermal insulation.

Application areas

The product is designed for:

• Insulation and filling of cavities and voids.
• Filling joints around window and door frames.
• Insulation against cold and drafts.
• Filling around pipes/duct penetrations.

The product can be used for interior and exterior applications.

Application

1. If used for bonding vertical/horizontal construction elements, they must be supported until the product has developed sufficient strength.
2. Shake the aerosol well for at least 20 times before use.
3. Repeat agitation after long breaks in use.
4. After shaking the canister, remove the cap from the Sika Boom-551 Multiposition canister as well as the ring cover on top.
5. Screw Sika Boom-551 Multiposition onto the thread of the application gun.
   The amount of expanded foam extruded can be adjusted by applying more or less pressure to the gun trigger or by using the application gun flow adjustment screw.
6. Fill deep seams in several layers.
7. Allow each coat to expand and harden sufficiently before wetting it again with water for the application of the next coat.
8. Only partially fill voids/cavities as the foam expands during curing.
   Small spaces can be filled with an extension tube, however this will reduce the flow of foam.
9. Do not remove the container from the application gun unless it is completely empty.
   Premature removal could result in foam splatter.
10. Clean the application gun with Sika Boom Cleaner after use.
    Removing the canister without thorough cleaning with Sika Boom Cleaner will damage the application gun.

Consumption

• Yield in joint: ~21 m
• Yield in box: ~45 l

Joint yield based on a 20 mm × 50 mm joint

Conditioning

750 ml aerosol.