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ROCKWOOL FIREPRO Acoustic Intumescent Sealant

As part of the comprehensive FIREPRO® range of fire protection products, ROCKWOOL Acoustic Intumescent Sealant is suitable for sealing joints and service penetrations in fire walls, partitions, fire rated door frames and glazing systems This high specification product is designed to be used in joints with high movement capability or where they are formed between dissimilar substrates, for example, steel and masonry.

Acoustic Intumescent Sealant is a high specification, one part water based acrylic sealant. The sealant is extruded from a 310ml loaded cartridge into a standard sealant gun or a 600ml sausage loaded into a closed barrel sealant gun. The depth of the joint will depend on the gap to be filled and the fire rating required

The sealant is fast curing, approximately 15 minute tack free time. When fully cured the sealant can be overpainted.


  • All joints up to 40 mm wide.
  • Up to 4 hours fire protection.
  • Used in Joints with high movement capability.

General information


310 ml cartridge

5 ltr tub

Uniclass 2015

Pr_30_31_76_02 Acrylic construction joint sealantsPrimary


E40/530 Sealant

F30/610 Movement joints with sealant

F30/76 Movement joints with sealant

L10/70 Fire-resisting frames

L10/790 Fire-resisting frames

L20/80 Sealant joints

L20/820 Sealant joints

P12/48 Sealant – fire-resisting acrylic

Specification data - Acrylic construction joint sealants

Product Reference

ROCKWOOL FIREPRO Acoustic Intumescent Sealant





310 ml cartridge

5 ltr tub

Standard product features


Acoustic Intumescent Sealant has been tested and assessed to BS 476: Part 20 and is third party approved by the Loss Prevention Certification Board for performance and quality – Red Book certification no. 022b (4). Certificates can be accessed online at www.rockwool.co.uk and www.redbooklive.com

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