Product Data Sheet Show all documents
Sika Boom®-420 Fire

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, which meets fire resistance requirements up to 180 minutes according to AS 1530.4. The combo canister packaging of Sika Boom®-420 Fire allows the application by either gun or nozzle.

  • AS1530.4 for fire resistance up to 3 hours.
  • Combo canister packaging for gun or nozzle application
  • 1-Part ready to use
  • Safety valve for extended shelf life
  • Can be cut, trimmed and sanded
Product Data Sheet Show all documents

Usage

Restores the fire resistance performance of a floor or wall which incorporates linear seals – e.g. joints around a fire door  

Advantages

  • AS1530.4 for fire resistance up to 3 hours.
  • Combo canister packaging for gun or nozzle application
  • 1-Part ready to use
  • Safety valve for extended shelf life
  • 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

Pink

Product Details

Sustainability / Certifications / Approvals

SUSTAINABILITY

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

APPROVALS / CERTIFICATES

  • AS1530.4 for fire resistance up to 3 hours.
Product Information

Composition

Polyurethane foam

Shelf life

12 months from the date of production.

Storage conditions

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

Density

Gun applied

~30 kg/m3  

Nozzle applied

~17 kg/m3
Technical Information

Resistance to fire

Refer to “approvals / certificates”, Sika Passive Fire protection handbook or contact Sika technical service for specific information

Light and thermal resistance

Not permanently UV-stable

Service temperature

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

Application

Application Information

Material temperature

The minimum canister temperature for application must be +5 °C and must not exceed +30°C

For optimal results, condition the canister to +20 °C.

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.

Curing time

Sika Boom®-420 Fire is fully cured after 24 hours

Cutting time

Gun applied

~45 min  

Nozzle applied

~45 min  

Tack free time

~6 min

(FEICA TM 1014)
Consumption

Consumption

750 ml canister:

Box Yield

Gun applied

Nozzle applied 

~44

~30

Joint Yield

Gun applied

Nozzle applied

~32

~24
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. Sika Boom®-420 Fire adheres without primers and/or activators.

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

MIXING

Shake the Sika Boom®-420 Fire canister well for minimum 20 times before use. Repeat shaking after long interruptions of use.

CLEANING OF EQUIPMENT

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 clean according to instructions. Do not leave the Sika Boom® Cleaner screwed on the application gun, as the valve could become damaged.

Hardened material can only be mechanically removed.

 For cleaning skin use Sika® Cleaning Wipes-100.

Documents