About Bitumen Paint

Posted in Product News and Information by Firwood Paints on April 18th 2016

Waterproof, weatherproof and cathodic protection with bitumen paint

General purpose bitumen paint is ideal for use in areas where an effective waterproof, weatherproof, chemical and corrosion resistant protective coating is needed. Bituminous coating can be used both externally and internally.

It is resistant to low concentrations of alkalis and acids and can withstand prolonged oxidation. Suitable for application to a wide variety of materials including iron and steel, lead, zinc, aluminium, asbestos, cement, concrete, stone, wood, felt and brick and is mainly used for, metal protection, corrugated iron sheets, fire escapes, stairways, ladders, storage tanks, gutters, down pipes, fences, railings, gates etc. And also as a protective coating for concrete structures, stone, brick, concrete screeds and sand/cement surfaces.In addition, since Bitumen Paint forms an odourless and taint-free film it can even be used on non-potable water tanks.

Firwood 57 Black Bituminous Paint is available in 5 Litre tins and 25 Litre drums. The product is ready to use and for non-porous surfaces does not require thinning prior to application.

Application Methods

Surface Preparation

As with all surface coatings, preparation of the surface is of the upmost importance, it will influence the degree of adhesion required and the life of the coating.

All surfaces should be clean, dry and free from grease, rust, millscale, etc.

Loose or blistered paint should be removed from the substrate.

Metal surfaces should be wire brushed to remove rust or cleaned by mechanical means or by lightly shot blasting. Where long term protection is required and initial treatment using a suitable anti-corrosive primer.

New galvanised surfaces should be roughened with a wire brush or treated using an etch primer.

Porous surfaces should have a coat of the bitumen paint, thinned 20% by volume using Firwood 114 Thinners applied prior to painting.


Refer to Material Safety Data Sheet for information on correct handling and application of the product.

After cleaning, the surface should be painted within 4 hours.

Click Here to view our Bitumen Paint

Apply using one of the following methods:

  • Conventional spray
  • Airless spray
  • Hot spray
  • Brush
Overcoat the bitumen paint after 24 hours.

Apply sufficient coats to give the degree of protection required.

Whilst this coating can be over-coated with the same material it is not recommended to overcoat with other types of paints. Please note bituminous coatings have a tendency to bleed through to the surface when over-coated.

Firwood – A Leading UK Manufacture Of Industrial Paints and Coatings

For more information about any of Firwood's products including technical advice about bitumen paint please get in touch today by calling 01204 525231 or email websales@firwood.co.uk

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