Leaking flat roof, gutter or cracked terrace?

PandaCoat UniBase MS is a seamless, liquid-applied waterproofing membrane (liquid rubber) that stops damp, cracks and water damage on flat roofs, terraces, gutters and even old bituminous coatings – no need to strip the old layer first.

UniBase MS advantages

🔧 Stops leaks with one thick coat
Cures into a flexible, crack-bridging waterproofing membrane for roofs, terraces and gutters that won't shrink or split.

🛠️ Universal, usually no primer needed
Apply directly to concrete, wood, metal or tile – no primer required (on old bitumen coatings, use Primer VL 2K first to prevent blistering). Just clean the surface, then brush or roller on.

🌦️ Built for the weather
Cures into a membrane that stretches over 3x without tearing, resists UV, heavy rain and temperatures from -40°C to +80°C. Apply 2–3 coats for a thicker, longer-lasting result.

🏗️ Not just for roofs
Also waterproofs wood, brick and masonry, and works as a damp-proof membrane under concrete floors, in basements and other below-ground spaces.

💧 Covers 1.1–1.3 L/m² (1.5–1.8 kg/m²)
Isocyanate-free MS polymer lets trapped moisture escape through the membrane instead of causing blisters – manufactured in the EU to strict quality standards.

What it is

A single-component, liquid-applied waterproofing membrane based on MS polymer (silane-modified polymer, isocyanate-free) that cures with air moisture into a seamless coating resistant to standing water. 1 kg pack – solvent-based (SB) formula. 5.7 kg pack – solvent-free (SF) formula, odourless, suitable for indoor use.

Where to use

• Flat roofs, terraces, green/planted roofs, standing-water areas
• Gutters and chimney base sealing
• Shed and garage roofs
• Roofs with PU foam or polystyrene insulation
• No-primer-needed surfaces: concrete, ceramic tile, metal
• Old bitumen coatings/felt (use Primer VL 2K first, see below)
• Also: outdoor timber, foundations, walls, basements (damp-proof membrane under flooring)
• Water tanks and reservoirs

How to use

The surface must be free of dust, grease and debris; remove old flaking coatings. The surface doesn't need to be fully dry – per the technical data sheet, it can also be applied to a damp substrate.

No primer is needed on concrete, ceramic or metal. On old bitumen coatings, Primer VL 2K is required to prevent blistering.

Apply 2–3 thin coats or 1 thick coat, allowing 2–48 hours between coats. Coverage: 1.1–1.3 L/m² (1.5–1.8 kg/m²). Surface dry after approx. 1.5 hours (23°C/50% RH), fully cured after 12–24 hours.

Technical specifications

• Density: 1.40 g/cm³
• Shore A hardness: 50
• Tensile strength: 2.20 N/mm²
• Elongation at break: 350%
• Working temperature: -40°C to +80°C
• Water vapour permeability: 12.7 g/m²/day – the membrane lets moisture escape instead of forming blisters
• Watertight / resistant to standing water: 1 m water column / 24h (DIN EN 1928)
• Crack bridging: Class A5 (highest rating per EN 1062-7, per DoP)
• Reaction to fire: Class F

Certificates

Declaration of Performance (DoP), issued 2024-04-05, tested to EN 1504-2:2005 ("Concrete surface protection systems – Coatings"), notified body Tecnalia Research & Innovation (No. 1292).

Safety information

1 kg pack – solvent-based (SB) formula: ensure good ventilation while applying and avoid ignition sources. 5.7 kg pack – solvent-free (SF), lower hazard. Follow the safety data sheet (chemical-resistant gloves, eye and respiratory protection recommended).