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Bio-based water resistance additive
Exilva® Water Resistance
Bio-based, high-performance silicone-free additive
for reducing water absroption of coatings.
Exilva® is a next-generation, 100% bio-based, EU Ecolabel-compliant, VOC- and silicone-free additive designed to significantly reduce water absorption in paints and coatings while maintaining vapor permeability, adhesion, and recoatability.
Its patented technology reduces the water uptake by mechanically restricting the swelling of the coating without forming a hydrophobic barrier.
Bio-based & eco-friendly
EU Ecolabel-compliant, silicone-, fluorine-, APE-, and VOC-free. Ideal for low-emission coatings.
Strong water-resistance without hydrophobic barriers
Reduces water uptake by mechanically restricting coating swelling, improving durability without changing the surface energy of the paint.
Strong resistance to alkalis and UV
Assuring long term durability and performance.
Broad Resin Compatibility
Works with acrylic, PU, styrene acrylic, vinyl acetate, VEOVA systems.
Technical highlights
- VOC content: 0 g/L
- Odor: Odorless
- Recommended dosage: 2.0–3.0 wt%
(add during grind) - Appearance: White paste
- Mechanism: Patented technology reduces the swelling of the coatings mechanically.
Performance snapshot
| Main property | With Exilva | Without Exilva |
| Mechanism | Mechanical | Hydrophobic |
| Recoatability | Good | Poor |
| Adhesion | Improved | May reduce |
How Exilva help
IMPROVES WATER RESISTANCE
Strong reduction on water
uptake of the coatings.
MINIMAL PERMEABILITY IMPACT
Maintains the breathability
of the coating.
NO RECOATABILITY IMPACT
May be recoated or touched up without significant surface preparation.
IMPROVED ADHESION
Improves adhesion on substrates such as concrete and metal.
formulation advantages
-
Drop-In Additive → No complex reformulation needed
-
Universal Resin Compatibility → Works across major water‑based resin technologies
-
No compromisses → Does not interfere with tinting, wet adhesion, or open time
Exilva® delivers effective water-resistance enhancement through a unique, silicone-free mechanism, providing long-lasting protection, strong film integrity, and excellent compatibility without sacrificing vapor permeability or recoatability.