The Fillcoat system is designed to be instantly waterproof, have 1300% elasticity and to provide excellent resistance against weather and mineral acids. It is not resistant to solvents and alkaline substrates. It does not contain bituminous products and has excellent adhesion on different substrates.


Remove dust, mud, grease, moss and leaves carefully. Areas to be repaired are cleaned with a hard broom and sponged. In case of repeatedly repaired areas, major or active cracks, Fillcoat without fibres is to be reinforced with Dakfill-fleece. Apply a coat of Fillcoat (about 1 litre/m²), unroll Dakfill-fleece in it and cover it immediately with another coat of Fillcoat. After cleaning, Fillcoat can be applied directly on bituminous substrates, hard PVC, polyester, zinc, aluminium, glass, tiles.

General information

Uniclass 2015

Pr_35_31_68_96 Water-dispersible polymer waterproof coatingsPrimary


J31/5 Cold deck roof coating

J31/110 Cold deck roof coating

Specification data - Water-dispersible polymer waterproof coatings

Product Reference



Not required

Primer No 44 diluted with 30% Thinner No 22

Coating application

1 coat Fillcoat, roller, brush or airless spray applied

2 coats Fillcoat, roller, brush or airless spray applied, reinforcement embedded in first coat

Rate of application

1–1.5 litres/m²


Not required

Dakfill Fleece

Minimum dry film thickness

600 micrometres



Dark gray

Light gray

Standard product features

AFNOR Classification:

Group I, class 7b1.

Density (ASTM D1475, 20°C):

1.03–1.06 g/cm³.

Drying time 20°C:

  • Dust free: 4 hours.
  • Re-coatable: 3–14 days with the same product or 6 weeks with paint.

Actual drying times are dependent on relative humidity, temperature and composition of the material.

Flashpoint (DIN 53213):

30°C - Flammable.

Solids content (ASTM D1644/a):

In volume 42–44%. In weight: 51–54%.

Product Options


Porous materials (concrete, stone, wood) must first be dried and pre-treated with Primer No 44 diluted with 30% Thinner No 22.


Dakfill Fleece embedded into first coat if required.

Coating colour:

A range of three standard colours. For other colours please contact Rust-Oleum UK Ltd.

Similar products from Tor Coatings Ltd (Rust-Oleum Industrial)