KingProof PVF®
High-performance, pre-applied, fully bonded PVC membrane for below-grade waterproofing.
Overview
KingProof PVF is a specially engineered non-woven polypropylene (PP) fleece co-extruded with a highly flexible soft PVC membrane, designed for use with structural reinforced concrete. KingProof PVF is installed before the steel reinforcement is fixed and the concrete is poured. The unique configuration of the membrane enables a full mechanical bond with freshly poured concrete, eliminating water migration between the membrane and the structure. It offers superior resistance to water, gases (e.g. radon), salts and chemical exposure, making it ideal for demanding below-grade applications.
Applications
- Foundations and basements
- Retaining walls and floor slabs
- Underground car parks and garages
- Tunnel walls and base slabs
- Marine and salt-contaminated environments
- Concrete structures in chemically aggressive environments
Advantages
- Fully bonded system – forms a permanent mechanical bond with freshly poured concrete
- Excellent mechanical properties; tough and durable
- Lightweight and flexible, easy to handle and install on site
- Reliable protection against lateral water pressure up to 6 bar
- Excellent chemical resistance; suitable for saline or alkaline environments
- Effective barrier against radon-gas infiltration
- Can bridge cracks up to 3.2 mm while withstanding 6.9 bar of water pressure
- 50 mm clear selvedge along the edge for overlapping
Technical Properties
| Property | Value | Standard |
|---|---|---|
| Material | Soft PVC + PP non-woven | — |
| Visible defects (EN 1850-2) | No visible defects (Pass) | — |
| Straightness (EN 1848-2) | 75 mm/10 m (Pass) | — |
| Working temperature | -5 to 50°C | — |
| Thickness (EN 1849-2) | 1.9 mm | — |
| Tensile strength MD/CMD (EN ISO 12311-2 A) | ≥ 500 N/50 mm | — |
| Water tightness (ASTM D 5385) | ≥ 690 kPa | — |
| Water tightness (EN 1928 B) | ≥ 60 kPa @ 24 hr; ≥ 500 kPa @ 72 hr | — |
| Watertightness after cracking (ASTM D 5385) | Mechanical bond with concrete (tight) | — |
| Impact resistance (EN 12691 A) | ≥ 350 mm | — |
| Static load resistance (EN 12730 A/B) | ≥ 20 kg/24 hr (Pass) | — |
| Tear resistance MD/CMD (EN 12310-1) | ≥ 350 N (nail shank) | — |
| Joint shear resistance (EN 12317-2) | ≥ 300 N/50 mm | — |
| Crack-bridging ability (ASTM D 5385) | ≥ 3.2 mm (Pass) | — |
| Durability against artificial ageing (EN 1928 B) | 12 weeks @ 70°C, 60 kPa/24 hr | — |
| Durability against chemicals (EN 1847 / EN 1928 B) | 60 kPa @ 28 days @ 23°C | — |
| Compatible with bitumen (EN 1548 / EN 1928 B) | 60 kPa/24 hr | — |
| Reaction to fire (EN 13501-1) | Class E | — |
Standards & Approvals
Usage & Packaging
Thickness 1.9 mm. Width 1.1 m or 2.2 m (+1%). Length 25 m. Roll 40 kg (1.1 m width) or 79.5 kg (2.2 m width). Pallet 9 rolls/pallet.
Roll area approx. 27.5 m² (1.1 m width) or 55 m² (2.2 m width); minimum 50 mm edge overlap and 300 mm staggered roll ends, so allow extra for overlaps.
KingProof PVF has a shelf life of 18 months from the date of manufacture when stored in the original packaging at temperatures between 5°C and 30°C, kept dry and protected from direct sunlight, snow, ice, water and heat sources. Do not stack sharp items or additional pallets on top of the membrane during transport and storage.
Roll
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