Rust-Oleum Mathys Dacfill Waterproofing
£65.46 (inc. VAT)
£54.55 (ex. VAT)
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Rust-Oleum Mathys Dacfill Waterproofing – High-Performance Roof Protection
Rust-Oleum Mathys Dacfill is a durable, professional-grade waterproofing membrane designed for sloped roofs. Suitable for surfaces like bitumen, cement, asphalt, plastics, and more, it forms a watertight, elastic, high-build coating that resists UV rays, acid rain, frost, heat, and pollution. Available in grey, Dacfill provides long-lasting protection against the elements with superior flexibility and adhesion.
Key Features:
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Watertight & Elastic Coating – Prevents leaks and resists cracking
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UV & Weather Resistant – Protects against acid rain, frost, heat, and pollution
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High Build Membrane – Long-lasting durability and flexibility
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Versatile Surface Compatibility – For bitumen, cement, asphalt, plastics, and more
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Professional Use Only – Ideal for trade and industrial roofing projects
Application Details:
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Surface Types: Sloped roofs – bitumen, cementitious, asphalt, plastics
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Finish: High-build elastic membrane
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Available Colour: Grey
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Use: Exterior, professional application only
Surface Preparation
The substrate must be well clean and dry, free from flakes, gravel, dust and dirt. Fill up
joints with Elastofill, bridge active cracks with "Dacfill bridging fleece" and apply one of the
following priming coats:
- On porous concrete, hard PVC and polyester : Primer 44 HS
- On very smooth concrete: Noxyde diluted with 25% water
- On iron and steel: undiluted Noxyde
- Asphalt/bituminous: Parafix
Roofing or bituminous materials over 1 year old can be coated directly with Dacfill. Zinc,
galvanised steel, copper, lead and aluminium can be recoated with Dacfill, if required, after
degreasing and slight sanding.
Technical Data
Density (g/cm³): 1,5
Gloss Level: Matt
Solids Content in weight: 73%
Solids content in volume: 60%
Test data: SRI value for Dacfill white after 4000 hours
weathering following ISO 16474-3:2020 : 97
(requirement: minimum 90)
Directions for Use
To ensure homogeneity, coating materials should be thoroughly stirred prior to use.
Drying weather: enough air ventilation (light breeze) or sunny conditions. Minimum
Temperature: 5°C. Max. Relative humidity: 80%.
Data Sheets
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