Product Data Sheet Show all documents

Sika Boom®-420 Fire

Fire resistant polyurethane expanding foam for gun and nozzle application

Sika Boom®-420 Fire is a 1-part, fire resistant, self-expanding polyurethane foam. It meets the fire resistance requirements of up to 180 minutes according to EN 1366-4. The combi-valve allows the application by either gun or nozzle.

  • Fire resistance up to 180 minutes according to EN 1366-4
  • Combi-valve for gun or nozzle application
  • 1-Part ready to use
  • Safety valve for extended shelf life
  • Cured foam can be cut, trimmed and sanded
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Product Data Sheet Show all documents

Usage

  • Restores the fire resistance performance of a floor or wall which incorporates linear seals
  • Interior use only
 

Advantages

  • Fire resistance up to 180 minutes according to EN 1366-4
  • Combi-valve for gun or nozzle application
  • 1-Part ready to use
  • Safety valve for extended shelf life
  • Cured foam can be cut, trimmed and sanded

Packaging

750 ml pressurised canister with safety valve: 12 canisters per box

Refer to current price list for packaging variations.

Colour

Red

Product Details

Sustainability / Certifications / Approvals

ENVIRONMENTAL INFORMATION

  • VOC emission classification GEV-Emicode EC1PLUS, license number 10376/03.06.13
  • VOC emission classification of building materials RTS M1

APPROVALS / STANDARDS

  • CE Marking and Declaration of Performance to ETA 19/0796, based on EAD 350140-00-1106:2017 – Fire stopping and fire sealing products, linear joint and gap seals
Product Information

Chemical Base

Polyurethane foam

Shelf Life

12 months from the date of production.

Storage Conditions

The product must be stored in original, unopened and undamaged packaging in dry conditions at temperatures between +5 °C and +25 °C. Store in an upright position.

Protect the canister from direct sunlight and temperatures above +50 °C (danger of exploding). Always refer to packaging.

Density

Gun applied

~17 kg/m3  

Nozzle applied

~30 kg/m3
Technical Information

Resistance to fire

Refer to ‘Approvals / Certificates’ section, Sika Passive Fire Protection Handbook or contact Sika Technical Services for specific information

Light and Thermal Resistance

Not permanently UV-stable

Service Temperature

−40 °C min. / +80 °C max. (briefly up to +100 °C)

Joint Design

Refer to ‘Approvals / Certificates’ section, Sika Passive Fire Protection Handbook or contact Sika Technical Services for specific information

Application

Application Information

Product Temperature

Optimum

+20 °C

Permissible

+5 °C min. / +30 °C max.

Ambient Air Temperature

Optimum

+20 °C

Permissible

+5 °C min. / +30 °C max.

Substrate Temperature

Optimum

+20 °C

Permissible

+5 °C min. / +30 °C max.

Cutting Time

Gun applied:

~25 minutes*

Nozzle applied:

~40 minutes*

*After this time a 30 mm diameter bead can be cut

Tack Free Time

~6 minutes

(FEICA TM 1014)
Consumption

Yield

750 ml canister:

Box Yield

Gun applied

Nozzle applied

~44 l

~30 l

Joint Yield

Gun applied*

Nozzle applied*

~32 m

~24 m

*Based on a 20 × 50 mm joint
Application steps

SUBSTRATE PREPARATION

The substrate must be clean, sound, firm, free from oils, grease, dust and loose or friable particles. Paint, cement laitance and other poorly adhering contaminants must be removed.

Pre-dampen the substrate with clean water, this ensures that Sika Boom®-420 Fire cures properly and also prevents secondary foam expansion.

CLEANING OF TOOLS

Clean all tools and application equipment with Sika Boom® Cleaner or Sika® Remover-208 immediately after use. Clean the application gun by screwing Sika Boom® Cleaner onto the thread of the application gun and press the trigger to clean it. Do not leave the Sika Boom® Cleaner screwed on the application gun, as the valve could be damaged. Hardened material can only be mechanically removed.  

 

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