Schomburg rangeArt. 204218
AQUAFIN-RB400
Rapid mineral waterproofing for buildings — multi-purpose, bitumen-free
AQUAFIN-RB400 is a two-component, flexible, polymer-modified cementitious waterproofing coating (FPD), fast and reactive-drying, free of bitumen. It condenses over 40 years of SCHOMBURG experience in thick-layer coatings, combining the speed of a reactive membrane with the chemical and mechanical resistance of a cementitious slurry — radon-tight, with crack-bridging that stays effective down to −5 °C.
CERTIFICATIONS AND STANDARDS
Impermeabile al radonDIN 18533DIN 18535WTA 4-6EMICODE EC1 PLUS
probar@probaritalia.com · +39 02 97130588
Features and benefits
FEATURES
- Two-component polymer-modified thick-layer coating (FPD)
- Cementitious waterproofing slurry (MDS)
- Bitumen-free
- Fast, reactive drying
- Crack bridging even at low temperature (−5 °C)
- Very low emissions — EMICODE EC1 PLUS
BENEFITS
- Trafficable after approx. 24 hours, recoatable after approx. 3 hours
- Sulphate resistant
- Frost, de-icing salt, UV and age resistant
- Radon-tight
- Good crack-bridging capacity
- Watertight up to 5 bar at 3 mm dry film thickness
- Withstands pressurised water after just 1 day
Technical data
- Packaging
- 32.5 kg two-component set (comp. A 19.5 kg bag + comp. B 13 kg pail); or 24 kg combination container
- Colour
- grey
- Base
- polymer-mortar combination
- Density (ready to use)
- approx. 1.1 kg/dm³
- Mix ratio
- 1.5 (comp. A powder) : 1 (comp. B liquid)
- Mixing time
- ~3 minuti
- Maturing time
- ~5 minuti
- Water addition, maximum
- 0.24 l per 24 kg
- Application temperature
- ~5–30 °C
- Pot life
- ~45 minuti
- Foot traffic after
- ~24 ore
- Overcoat after
- ~3 ore
- Withstands pressurised water after
- ≥ 1 giorno
- Crack bridging (PG MDS/FPD)
- up to 2 mm
- Crack bridging (ASTM C836)
- > 3 mm
- Crack bridging (EN 14891, incl. low temp.)
- > 0.75 mm
- Watertightness (PG MDS/FPD)
- up to 5.0 bar with 3.0 mm dry thickness
- Watertightness against negative pressing water (WTA 4-6)
- up to 0.75 bar
- Tensile adhesion strength (EN 1542)
- ≥ 0.5 N/mm²
- Exposure class (EN 1992-1-1)
- XA2
- Reaction to fire (EN 13501-1)
- classe E
- Consumption — ground moisture on concrete (W1.1/1.2-E)
- ≥ 2.4 kg/m² (dry thickness ≥ 2.0 mm)
- Consumption — ground moisture on masonry (W1.1/1.2-E)
- ≥ 3.6 kg/m² (dry thickness ≥ 3.0 mm)
- Consumption — moderate pressure water <3 m (W2.1-E)
- ≥ 4.8 kg/m² (dry thickness ≥ 4.0 mm)
- Consumption — plinth and splash water (W4-E)
- ≥ 2.4 kg/m² (dry thickness ≥ 2.0 mm)
- Consumption — tanks and containers (W2-B)
- ≥ 2.4–4.8 kg/m² depending on load
Data as declared in the Probar Italia 2026 catalogue. For complete and up-to-date values, the manufacturer’s data sheet prevails.
When to use AQUAFIN-RB400
Applications listed in the catalogue
Below gradePlinthBasement wallsIndoorOutdoorTanksContainersReplacement of old, firmly adhering bituminous coatingsDoor and window elements at ground level
AQUAFIN-PrimerWaterproof slurries and mortars
FIX-20-TWaterproof slurries and mortars
AQUAFIN-1K-PLUSWaterproof slurries and mortars
AQUAFIN-2K/M-PLUSWaterproof slurries and mortars