Description
PREPRUFE® 300R Pre-Applied Waterproof Membrane
PREPRUFE® 300R is a premium pre-applied waterproof membrane engineered to create a continuous adhesive bond with poured concrete. Unlike conventional loose-laid membranes, it prevents water migration between the membrane and the concrete structure, providing long-term waterproofing protection for below-ground structures. Designed for horizontal applications, PREPRUFE 300R offers exceptional puncture resistance, outstanding durability and reliable protection for basements, foundation slabs and civil engineering projects. It is suitable for use in accordance with BS 8102 and contributes to protection against methane, carbon dioxide and radon gases when incorporated into an appropriate gas protection system.
Key Benefits
- Creates a permanent adhesive bond with poured concrete
- Prevents lateral water migration between membrane and structure
- Superior puncture and damage resistance
- Suitable for all horizontal waterproofing applications
- Excellent resistance to groundwater contaminants and sulphates
- Contributes to methane, carbon dioxide and radon gas protection
- Flexible and easy to install
- Self-adhesive selvedge for secure lap joints
- Compatible with PREPRUFE Tape and Bituthene LM detailing products
- BBA Certified
- Designed for long-term below-ground waterproofing performance
Applications
- Foundation slabs
- Basement floor slabs
- Raft foundations
- Underground concrete structures
- Civil engineering projects
- Podium deck waterproofing
- Below-ground concrete construction
- New build developments
Technical Information
- Product Type: Pre-applied bonded waterproof membrane
- Roll Size: 1.2m × 30m
- Coverage: 36m² per roll
- Thickness: 1.2mm
- Minimum Lap: 75mm
- Minimum Installation Temperature: +5°C
- Hydrostatic Pressure Resistance: Greater than 70 metres
- Fire Classification: Class E
- Standard: EN 13967
- BBA Certificate: 97/3325
Frequently Asked Questions
What is PREPRUFE® 300R used for?
It is used as a pre-applied waterproof membrane beneath concrete foundation slabs and other horizontal below-ground structures where long-term waterproofing is required.
How does PREPRUFE® 300R work?
The membrane bonds directly to freshly poured concrete, preventing water from tracking between the membrane and the structure if damage occurs.
Can it help protect against ground gases?
Yes. It contributes to protection against methane, carbon dioxide and radon gases when incorporated into a suitable gas protection system.
Is PREPRUFE® 300R suitable for horizontal applications?
Yes. PREPRUFE® 300R is specifically designed for all horizontal waterproofing applications and offers superior puncture resistance.
What accessories are recommended?
Compatible accessories include PREPRUFE Tape for lap joints, Bituthene LM for detailing and Adcor waterstops for construction joints.
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