Product Data Sheet Show all documents

Sikacryl®-620 Fire

Fire resistant acrylic sealant for linear joints in walls and floors

Sikacryl®-620 Fire is a fire resistant, 1 part, water-based sealant.

  • Up to 4 hours fire resistance according to EN 1366-4
  • Good workability
  • Good adhesion to a wide range of substrates
  • Water-based
  • Over-paintable
Product Data Sheet Show all documents

Usage

Sikacryl®-620 Fire is designed for fire resistant connection joints on porous and non-porous substrates.

Advantages

  • Up to 4 hours fire resistance according to EN 1366-4
  • Good workability
  • Good adhesion to a wide range of substrates
  • Water-based
  • Over-paintable

Packaging

600 ml foil pack, 12 foil packs per box
300 ml cartridge, 12 cartridges per box

Colour

White, grey

Product Details

Sustainability / Certifications / Approvals

ENVIRONMENTAL INFORMATION

  • VOC emission classification GEV-Emicode EC1PLUS, license number 7145/20.10.00
  • Conformity with LEED v4 EQc 2: Low-Emitting Materials
  • Sikacryl®-620 Fire is listed on the Eco-Product Directory as environmentally friendly product choice for green building initiatives. (application no.: PL-01472-2022)
 

APPROVALS / STANDARDS

  • CE Marking and Declaration of Performance based on European Technical Assessment ETA 20/1115. ETA issued on the basis of EAD 350141-00-1106:2017 – Fire Stopping and Fire Sealing Products – Linear Joint and Gap Seals.
  • Classification report reaction to fire EN 13501-1, Sikacryl®-620 Fire, Exova, Report No. 356703
  • Classification report resistance to fire EN 13501-2, Sikacryl®-620 Fire, Exova, Report No. 343247B
  • Fire testing BS 476-20, Sikacryl®-620 Fire, Exova, Report No. 344546A
  • Sound transmission ISO 10140-2, Sikacryl®-620 Fire, SRL, Report No. C/22765/T03
  • UL Product iQ, XHBN.HW-S-0113 - Joint Systems, System No. HW-S-0113
  • IMO Certificate MED D, Sikacryl®-620 Fire, DNV GL SE, No. MEDD00001VA
  • IMO Certificate MED B, Sikacryl®-620 Fire, DNV GL SE, No. MEDB00005C6
Product Information

Chemical Base

1 part acrylic dispersion

Shelf Life

Sikacryl®-620 Fire has a shelf life of 24 months from the date of production, if stored in undamaged, original, sealed packaging, and if the storage conditions are met.

Storage Conditions

Sikacryl®-620 Fire shall be stored in dry conditions, where it is protected from direct sunlight and frost, at temperatures between +5 °C and +25 °C.

Density

~1.65 kg/l

 (ISO 1183-1)
Technical Information

Service Temperature

−25 °C min. / +70 °C max. (dry)

Joint Design

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

Application

Application Information

Sag Flow

~1 mm (20 mm profile, 50 °C) 

(ISO 7390)

Ambient Air Temperature

+5 °C min. / +30 °C max.

Substrate Temperature

+5 °C min. / +30 °C max.

min. 3 °C above dew point temperature

Backing Material

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

Curing rate

~2 mm / 24 hours (23 °C / 50 % r.h.)

(CQP 049-2)

Skin Time

~15 min (23 °C / 50 % r.h.) 

(CPQ 019-1)
Application steps

SUBSTRATE PREPARATION

The substrate must be clean, dry, sound and homogeneous, free from oils, grease, dust and loose or friable particles. Sikacryl®-620 Fire adheres without primers and/or activators.

CLEANING OF TOOLS

Clean all tools and application equipment immediately after use with water. Once cured, residual material can only be removed mechanically.

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