Bollom Flameguard Ultra Primer / Undercoat

Non Hazardous
Offers Class 0 protection on masonry surfaces that have been already coated with up to 10 layers of conventional paint.
Available in 5 Litres in White
£72.58 £60.48
In stock
Product Description

Bollom Flameguard Ultra Primer / Undercoat is a specialist, adhesion promoting, stain blocking primer, used as part of a fire protection system on non-combustible surfaces, prior to the application of Flameguard Ultra Topcoat.

Best Uses

Bollom Flameguard Ultra Primer / Undercoat has been developed to offer excellent adhesion even when applied on masonry surfaces that have been coating with up to 10 layers of conventional paint, with no need to strip them. This prime has been designed solely for use in internal applications for a hard wearing finish.


Bollom Flameguard Ultra Primer / Undercoat can be applied using brush or roller for a finish that provides a high level of adhesion and hard wearing results. With fast drying characteristics, you can touch the surface after 2 hours and recoat the surface after 4 hours.

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.

Surface and Environment

Bollom Flameguard Ultra Primer / Undercoat can be applied to all bare and previously painted, non-combustible surfaces such as plaster, cement, concrete, and old paint work, and is highly suited for blocking stains on porous surfaces, providing the perfect base coat for Flameguard Ulta Top coat finishes.

Technical Details


  • Excellent adhesion
  • Ideal for previously painted surfaces
  • Class 0 fire rating
  • Interior use
  • Hard wearing finish
  • flameguard-ultra-primer
  • Available in white (tintable to BS, RAL & NCS references)
  • Application by brush conventional-spray roller.


  • Coverage 12m2 per litre
  • Touch dry 2 hours 
  • Hard dry 8 hours 
  • Recoatable 4 hour
  • Available in 5 Litres

The manufacturers data sheets are available for download from this website. It is your responsibility to read and understand all aspects of the data sheets before you place an order and prior to application. Please pay special attention to the preparation, mixing and application temperatures of the product, cleaning of substrate and environmental factors such as temperature, rain etc. Quoted coverage rates are based on the manufacturers theoretical rates and may vary depending upon substrates absorption, texture and application. We always recommend a test is carried out to ensure suitability.

Customer further agrees that Promain have no liability for any errors or omissions contained within the Product Data Sheets and are not liable for failure due to misapplication or inadequate substrate cleaning and preparation. For more information please refer to our Terms & Conditions.

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