Bollom Intulac Ultra Intumescent Basecoat

Non Hazardous
A high performance fire protection coating for interior wood surfaces. Use with a protective Intulac Satin or Matt Finish Top Coat to complete.
Available in 5 Litres
From £247.09 £205.91
In stock
Only %1 left
Product Description

Bollom Intulac is a clear matt or satin varnish coating for interior wooden surfaces (excluding doors) offering Class 0 spread of Flame to BS476 Parts 6&7.

Best Uses

Bollom have developed a clear varnish paint coating offering Class O spread of Flame for interior timber surfaces. Fire retardant coatings are not designed to upgrade doors to fire doors, fire retardant coatings will provide Class O spread of flame but will NOT provide any minutes protection.

Bollom Intulac is a water based intumescent base coat that is used in conjunction with the Bollom Intulac Top Coat that in the event of fire expands to form a protective carbon char that protects the wood from burning. The system comprises of 2 coats of Bollom Intulac water based intumescent base coat and one coat of either Bollom Intulac matt or satin topcoat.

A 5 Litre tin of Intulac Ultra Intumescent Base Coat will cover, with 2 coats a total of 12.5m2 to provide Class O Spread of Flame.


Reduction of ignitability of soft and hard wood and other wood derivatives, i.e. plywood, chipboard, fibre insulation board, hard board, also on veneering ≥ 12 mm thickness. Insulates against heat, checks fire, prevents propagation of fire and diminishes flue-gas density and flue-gas temperature. For interior use only. Not suitable for surfaces exposed to mechanical stress.

Please be aware that you MUST apply both the Intulac basecoat and the Intulac solvent based top coat in either matt or satin finish to form the complete high performance system.

The Bollom Intulac Ultra range of fire retardant coatings has been formulated for use by professional painter and decorators. All the Bollom Intulac Ultra range of products are easy to apply and have been fire tested to BS 476 Parts 6&7.

IMPORTANT INTUMESCENT PRODUCT NOTE: Always contact Promain’s technical team prior to purchase to obtain a tailored project specification and the advice necessary. The information displayed on this website should only be used as a guide. Promain UK Limited will not be held liable for any resulting damage to property, human life or monetary costs incurred due to incorrect specification, preparation, application or maintenance that has occurred due to negligence by either the purchaser or applicator. This includes your failure to have contacted us to obtain the relevant advice/specification.

How do I obtain a Fire Certification

You will need to provide the proof of purchase, the batch numbers of the products used along with the site details and contact our Technical Department on 01462 421 333 with all this information and Promain will send you the relevant Certificate of Supply within 5-7 working days.

Technical Details


  • Bollom Interlac can be applied over existing varnish (a maximum of four, single, well-adhered coats)
  • Simple 3 coat system to achieve Class O spread of flame
  • Single pack products so no mixing required

Technical Info

Components: Single Pack
Type: Water Based
Finish: -
Stock Colours: Clear
Tintable: No
VOC Content: 140 g/l
Volume Solids: -
Suitable Substrates: Interior wood
Application Method: Brush, Roller, Airless Spray
Theoretical Coverage: A 5 Litre can of Intulac™ Ultra Intumescent Base Coat will cover 12.5m2 for Class 0.
Wet Film Thickness (WFT): Please contact Promains Technical Team
Dry Film Thickness (DFT): Please contact Promains Technical Team
Induction Time: Please contact Promains Technical Team
Touch Dry: 2 hours at 20°C
Overcoatable: Allow a minimum of 16 hours between coats of basecoat & 48 hours before applying
Hard Dry: 24 hours at 20°C
Cleaner / Thinner: Clean equipment immediately after use with warm water.
Shelf Life: 12 months from date of manufacture unopened 
Packaging: Available in 5 Litres
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