Product Data Sheet Safety Data Sheet Show all documents

Sika Boom® G

Highly expansive, gun applied polyurethane fixing foam

Sika Boom® G is a 1-component, fast curing, gun applied polyurethane foam with a very high expansion rate.

  • 1-Component
  • Easy application with application gun
  • High expansion rate and yield
  • Fast curing
  • Very good thermal insulation
  • Effective sound dampening
  • HFC-free
  • Suitable for application at lower temperatures (+5°C)
Where to buy
Product Data Sheet Safety Data Sheet Show all documents

Usage

Sika Boom® G is designed for fixing, insulating and filling connection joints around window and door frames, air-conditioning vents and roller blind housings.
Sika Boom® G allows insulation against noise, cold and draughts after a single application.  

Advantages

  • 1-Component
  • Easy application with application gun
  • High expansion rate and yield
  • Fast curing
  • Very good thermal insulation
  • Effective sound dampening
  • HFC-free
  • Suitable for application at lower temperatures (+5°C)

Packaging

750 ml can with rubber valve, 12 cans per box

Colour

Light yellow

Product Details

Sustainability / Certifications / Approvals

APPROVALS / STANDARDS

BRANZ Appraised No. 452 [2007] for use as an airseal
Product Information

Chemical Base

1-Component polyurethane

Shelf Life

Sika Boom® G has a shelf life of 12 months from the date of production, if stored properly in undamaged, original, sealed packaging, and if the storage conditions are met. Opened cans of Sika Boom® G must be used within 4 weeks.

Storage Conditions

Sika Boom® G shall be stored in an upright position, in dry conditions, protected from direct sunlight and at temperatures between +5 °C and +25 °C.

Density

~20 kg/m3
Technical Information

Water Absorption

< 1 % of volume (cut surface)

(DIN EN 12087)

Compressive Strength

~0.04 N/mm2 (with 10 % deformation)

(ISO 844)

Tensile Strength

~0.08 N/mm2

(ISO 1926)

Shear Strength

~0.04 N/mm2

(ISO 1922)

Dimensional Stability

± ~5 %

Joint Permeability to Water Vapour

µ = 14, sd = 0.83 m (d = 49 mm, ρ = 13 kg/m3)

(ISO 12572)

Thermal Conductivity

~0.0405 W/mK

(EN 12667)

Sound Insulation

RST,w (C;Ctr) = 61 (−1; −4) dB

(ift SC-01/2)

Service Temperature

−40 °C min. / +80 °C max.

Application

Application Information

Ambient Air Temperature

Optimum

+18 °C min. / +25 °C max.

Permissable

+5 °C min. / +35 °C max.

Relative Air Humidity

30 % min. / 95 % max.

Substrate Temperature

Optimum

+18 °C min. / +25 °C max.

Permissable

+5 °C min. / +35 °C max.

Cutting Time

~20 min (after which a 20 mm bead can be cut).

Sika Boom® G is fully cured after 12 h.

Tack Free Time

~9 min
Consumption

Yield

750 ml can

~48 l

Consumption can be regulated by adjusting the pressure on the trigger or by tightening or loosening the screw of the application gun.
Application steps

APPLICATION INSTRUCTIONS

For the application of Sika Boom® G all generally accepted rules of building and construction apply.

SUBSTRATE PREPARATION

The substrate must be clean, sound and homogeneous, free from oils, grease, dust and loose or friable particles. Paint, cement laitance and other poorly adhering contaminants must be removed. Sika Boom® G adheres without primers and/or activators.
Pre-dampen the substrate with clean water, this ensures that the foam cures properly and also prevents secondary foam expansion.

CLEANING OF TOOLS

Clean all tools and application equipment immediately with Sika Boom®-Cleaner and/or Sika® Remover-208. Once cured, residual material can only be removed mechanically.

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