Mathys Murfill Waterproofing Coating – Long-Lasting Elastic Facade Protection

Murfill Waterproofing Coating is a semi-thick, water-based facade coating formulated with high polymers for superior protection against water infiltration, cracking, and environmental damage. With 400% permanent elasticity, it bridges joints and active cracks, while remaining waterproof yet water vapour permeable.

Designed for long-term durability, it protects reinforced concrete against carbonation and rebar corrosion, while resisting soiling, splintering, and atmospheric pollution. When combined with Murfill fleece, it delivers additional mechanical reinforcement and crack-bridging capability. Ideal for use in rural, urban, maritime, and industrial environments, Murfill® keeps facades looking new while preserving building heritage.

Key Features:

• 400% Elasticity – Bridges joints and active cracks with permanent flexibility
• Waterproof & Vapour Permeable – Protects while allowing surfaces to breathe
• Excellent Colour Retention – Long-lasting facade appearance in all climates
• Concrete Protection – Prevents carbonation and rebar corrosion
• Reinforcement Option – Use with Murfill fleece for added strength
• Pollution & Soiling Resistant – Maintains clean, attractive facades over time

Surface Preparation

Murfill Waterproofing Coating can be applied directly on old (sound) paintwork after thorough brushing down. Chalking paints or substrates must be treated first with Primer 44HS or with Pegafix, when the old paint coat (acrylic paint or Murfill Waterproofing Coating) is affected by the solvents of Primer 44HS. New or unpainted substrates: on porous materials apply first a coat of Primer 44HS or Pegafix. On smooth non-porous substrates apply a coat of Pegalink white or a coat of Noxyde Plus diluted with 20% water. For stain, graffiti blocking and/or very fast recoating on all substrates, use Zinsser primers Bulls Eye 123 or 123 Plus, or Cover-Stain. Cracks < 0.5 mm wide: fill up with Murfill Waterproofing Coating. Cracks > 0.5 mm wide

Technical Data

Density (g/cm³): 1,33 - 1,37 g/cm³ (wit)
Gloss Level: Semi-Matt
Gloss level at 60º: 8-10%
Gloss level at 85º: 13-16%
Solids Content in weight: 60 - 63%
Solids content in volume: 47 - 50%

Directions for Use

To ensure homogeneity, coating materials should be thoroughly stirred prior to use.

Do not dilute and apply in thick coat.

Data Sheets

Mathys Murfill Waterproofing TDS

Mathys Mufill Waterproofing MSDS