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Rockwool  FIREPRO Ablative Coated Batt

A 60 mm thick high density stone-wool insulation slab, finished on both faces with an ablative coating and intended as a fire penetration seal around mechanical and electrical services passing through fire resisting walls and floors or as a blank seal. The product is manufactured using an automated spraying and curing technique to ensure an even coating thickness. Added benefits include the system’s ability to provide a cold smoke seal, air tightness and excellent acoustic performance.

To install, the Ablative Coated Batts are simply cut and friction fitted between the services and the edges of the surrounding structure. Rockwool Acoustic Intumescent Sealant is used to seal around each service (or lagging) and around the perimeter where the batts meet the surrounding structure. Finally, the ablative coating is brush or spray applied over all joints to form a clean, monolithic layer.

Plastic pipes must be sleeved locally with Rockwool Insulated Pipe Sleeves as they pass through the Ablative Coated Batts (specify in clause 44). Where a fire resistance insulation performance is required for metal pipes, these need to be lagged with Rockwool Fire Tube or Pipe Sections.

For floor openings in excess of 600 x 600mm or where a load-bearing capability is required, Rockwool Firepro Firestop Compound is recommended.

Rockwool insulation products do not contain blowing agents with an ozone depletion potential (ODP) or global warming potential (GWP), are CFC-HCFC-HFC free and 97% recyclable. They will not react with metal components (1) or cause loss of plasticiser from PVC cables and pipes.


  • Excellent fire resistance from single thickness Batt Standard size: 1200 x 600 x 50 mm.
  • Suitable for sealing wall and floor voids containing most commonly used services.
  • Can be used as a blank seal and a head of wall seal.
  • Lightweight and simple installation.
  • Maintenance free.
  • 160kg/m3 density base material provides additional benefits of a smoke and acoustic seal.
  • Tested for air tightness.

General information
Uniclass 2015
Pr_25_57_06_56 Mineral wool slab insulationPrimary

P12/360 Mineral wool rigid batts

P12/41 Mineral wool rigid batts - ablative coated

Specification data - Mineral wool slab insulation
Product Reference

Rockwool Firepro Ablative Coated Batt


50 mm

60 mm


600 mm

1200 mm


ROCKWOOL Acoustic Intumescent Sealant


ROCKWOOL FirePro Insulated Fire Sleeves

ROCKWOOL FirePro Insulated Fire Sleeves

ROCKWOOL FirePro Insulated Fire Sleeves

ROCKWOOL FirePro Fire Tube

ROCKWOOL FirePro Pipe Section

Standard product features

Reaction to fire class:

A1 to BS EN 13501-1.


  • Non-combustible, achieving a classification of A1 in accordance with BS EN 13501-1.
  • Tested to EN 1366-3 for up to 4 hours fire resistance integrity and insulation in masonry and plasterboard walls or concrete floors, the Ablative Coated Batt system can provide a seal around a range of plastic, copper and steel (1) pipes, cables and ductwork. It can also form a blank seal, for areas up to 2.88m x 2.4 m.

1) When insulating or sealing around austenitic stainless steel, it is recommended that the pipe is wrapped locally with aluminium foil, regardless of insulation type - contact Rockwool for further details.

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