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Sikacryl®-620 Fire

Fire rated sealant for linear joints and penetrations

Sikacryl®-620 Fire is a fire rated 1-component, water-based intumescent sealant. Suitable for use in hot and tropical climatic conditions.

  • Up to 2 hours fire resistance according to UL 2079
  • Up to 5 hours fire resistance according to EN 1366-4
  • Up to 2 hours fire resistance according to EN 1366-3
  • Good workability
  • Good adhesion to a wide range of substrates
  • Water-based
  • Over-paintable
 
Sikacryl®-620 Fire
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Usage

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

Advantages

  • Up to 2 hours fire resistance according to UL 2079
  • Up to 5 hours fire resistance according to EN 1366-4
  • Up to 2 hours fire resistance according to EN 1366-3
  • 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

SUSTAINABILITY

  • Sikacryl®-620 Fire conforms to LEED v4 EQc 2: Low-Emitting Materials
  • Sikacryl®-620 Fire is certified according "Low Emitting Materials as per Al Sa'fat - Dubai Green Building Evaluation System" by Dubai Central Laboratory (DCL) certificate No. CL18020589

APPROVALS / CERTIFICATES

  • Dubai Civil Devence (DCD), Certificate No.: CF 5463
  • UL 2079
  • EN 15651-1 F INT
  • ISO 11600 12.5 P
  • EN 1366-3 assessment report
  • EN 1366-4 assessment report
  • ETAG 026 assessment report
  • EN 13501-2 classification report
  • EN 140-3 test report
  • EN 13501-1 class B-s1-d0
Product Information

Composition

1-Component acrylic dispersion

Shelf life

Sikacryl®-620 Fire has a shelf life of 18 months from the date of production, if it is 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

Shore A hardness

~33 (28 d)

(ISO 868)

Movement capability

12.5 %

(ISO 11600)

Service temperature

−25 °C min. / +70 °C max. (dry)

Joint design

The joint width must be designed to suit the joint movement required and the movement capability of the sealant. The joint width shall be ≥ 10 mm and ≤ 35 mm. The joint depth shall be ≤ 15 mm. A width to depth ratio of 2 : 1 must be maintained.

All joints must be correctly designed and dimensioned in accordance with the relevant standards, before their construction.

For larger joints please contact our Technical Department.

Application

Application Information

Backing material

Use polyethylene foam backing rods.

Sag flow

~1 mm (20 mm profile, 50 °C) 

(ISO 7390)

Ambient air temperature

+5 °C min. / +30 °C max. (min. 3 °C above dew point temperature)

Substrate temperature

+5 °C min. / +30 °C max.

Curing rate

~2 mm/24 h (23 °C / 50 % r.h.)

(CQP 049-2)

Skinning time

~15 min (23 °C / 50 % r.h.) 

(CPQ 019-1)
Consumption

Consumption

Joint length [m] per 600 mL foil pack

Joint width [mm]

Joint depth [mm]

61010

4

15		10
3

20		10
22512
1.33015
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. Iron and steel must be protected with an anti-corrosion primer.

CLEANING OF EQUIPMENT

Clean all tools and application equipment immediately after use with water and/or Sika® TopClean T. Once cured, residual material can only be removed mechanically.

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