Product Data Sheet Show all documents

Sikacryl®-621 Fire+

Fire resistant acrylic sealant for linear seals and penetrations

Sikacryl®-621 Fire+ is a fire resistant, intumescent, phthalate-free acrylic sealant used for interior joints and penetration seals in fire compartment walls and floors.

  • Up to 4 hours fire resistance.
  • 1-part ready to use, easy to apply.
  • Provides acoustic insulation.
  • Tested for a large variety of relevant wall and floor types.
 
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Product Data Sheet Show all documents

Usage

  • Restores the fire resistance performance of a wall or floor which incorporates penetration services or linear seals.
  • Can be used in combination with SikaSeal®-626 Fire Board+, SikaSeal®-627 Fire Collar+ and SikaSeal®-629 Fire Wrap+.

Advantages

  • Up to 4 hours fire resistance.
  • 1-part ready to use, easy to apply.
  • Provides acoustic insulation.
  • Tested for a large variety of relevant wall and floor types.
 

Packaging

300 ml cartridge

600 ml sausage

12 cartridges per box

12 unipacks per box

Colour

White

Product Details

Sustainability / Certifications / Approvals

ENVIRONMENTAL INFORMATION

  • Conformity with LEED v4 EQc 2: Low-Emitting Materials.
  • VOC emission classification GEV-EMICODE EC 1PLUS.

APPROVALS / STANDARDS

  • CE Marking and Declaration of Performance to European Technical Assessment ETA 21/0889, based on EAD 350141-00-1106:2017 - Fire stopping and fire sealing products, linear joint and gap seals.
  • CE Marking and Declaration of Performance to European Technical Assessment ETA 21/0888, based on EAD 350454-00-1104:2017 - Fire stopping and fire sealing products, penetration seals.
  • Fire Resistance EN 13501-2, UL-EU, No.UL-EU-01212-CPR.
Product Information

Chemical Base

Acrylic dispersion

Shelf Life

18 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.
Always refer to packaging.

Density

~1.6 kg/l

(ISO 1183-1)

 
Technical Information

Service Temperature

−20 °C min. / +70 °C max.

Resistance to fire

Refer to ‘Approvals / Certificates’ or contact Sika Technical Services for specific information.

Joint Design

Refer to ‘Approvals / Certificates’ or contact Sika Technical Services for specific information.

Application

Application Information

Sag Flow

~0 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’ or contact Sika Technical Services for specific information.

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®-621 Fire+ adheres without primers and/or activators.

CLEANING OF TOOLS

Clean all tools and application equipment with water immediately after use. Hardened material can only be removed mechanically.

 

Documents

Related Products

SikaSeal®-627 Fire Collar+

Fire resistant pipe collar
SikaSeal®-629 Fire Wrap+

Fire resistant pipe wrap
Sikasil®-670 Fire

FIRE RATED JOINT SEALANT