Rustoleum Fillcoat Fibres Waterproofing

UN1263 (Class: 3, Pk Grp: III)
Instant waterproofing with added fibres for flat and corrugated roofs, flat roof repair, shed roof repair, gutter repair, etc.
Available in 1, 5 and 20 Litres
From £15.04 £12.53
In stock
Only %1 left
Product Description

Fillcoat Fibres Waterproofing seals leaks quickly, bridges small cracks easily and immediately in roofs, even when it is wet.

For instant waterproofing protection Rustoleum Mathys Fillcoat Fibres seals leaks quickly, easily and immediately in flat roofs, shed roofs, gutter repair, drain repair, box gutters, etc. Single component product that can be used all year round - it can be applied in all weather conditions, including snow. Rustoleum Mathys Fillcoat Fibres is similar to Fillcoat but has added fibres (fibreglass), which help strengthen the repair over larger cracks up to several millimetres in width without the use of Dacfill Fleece. The fibres and the great elasticity of the product allow tears to be covered effectively.

Best Uses

Rustoleum Fillcoat Fibres Waterproofing is best used to create a waterproof finish on roofs, non-walkable terraces, flat roofs, sheds, felt roofs on garages, and gutters. Fillcoat Fibres is best used as an alternative to fillcoat, because of the added fibres, it means you can repair large cracks up to several millimetres without using Dacfill Fleece.


Rustoleum Fillcoat Fibres Waterproofing can be applied using brush or roller to create a waterproof finish for flat roofs, box gutters and various other surfaces. Within 4 hours you will be provided with a touch dry coating which you can recoat after 3 days. Fillcoat Fibres can be applied even when the weather is at its worst. Apply Fillcoat Fibres crosswise over cracks to get the desired finish.


Fillcoat Fibres is designed for use on roofs, non-walkable terraces, gutters, ridge pieces, pipes and chimney stacks. This product is designed to offer excellent adhesion to various substrates to create an immediate watertight finish.

Technical Details


  • Excellent adhesion
  • Suitable for use directly onto bitumen, asphalt, felt, hard PVC, polyester, zinc, aluminium, glass and tiles
  • Porous substrates (concrete, stone, wood) should be primed with primer 44 before application
  • Solvent based
  • Up to 1300% elasticity
  • Can be applied in all weather conditions including rain and snow
  • Instantly waterproof.

Technical Info

Components: One Part
Type: Solvent Based
Finish: Satin
Stock Colours: Dark Grey, Light Grey
Tintable: No
VOC Content: 485.0g per Litre
Volume Solids: 43%
Suitable Substrates: For roofs, non-walkable terraces, gutters, ridge-pieces, chimney stacks, pipes, etc
Application Method: Brush
Theoretical Coverage: 1.5 litres per m2 for 1 coat
Wet Film Thickness (WFT): 1000 microns
Dry Film Thickness (DFT): 430 microns
Induction Time: -
Pot Life: -
Touch Dry: -
Overcoatable: 3 - 14 days with the same product. 6 weeks with a paint at 20°C
Fully Cured: -
Cleaner / Thinner: Rustoleum Thinner 22 or White Spirit
Shelf Life: 5 years
Packaging: Available in 5 Litres
Product Video

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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