KingProof PVPT®
A flexible PVC waterproofing membrane for underground structures and tunnels.
SpecWorld has the Spec Pack, CSI specification and drawings for registered specifiers.
Overview
KingProof PVPT is a single layer, high quality, homogenous flexible polyvinyl chloride (PVC) waterproofing sheet with a signal layer used for underground structures and tunnels.
The different colours on the two sides (signal layer), light on the exposed surface and dark behind, make it possible to identify immediately any damage to the membrane during installation.
Where to use
Waterproofing of
- Underground structures.
- Tunnels.
- Basements.
- Retaining walls.
Why use it
- High resistance to micro-organisms and root penetration.
- High resistance against harsh components found naturally in the soil and underground water.
- High strength and elongation.
- Flexible in cold temperatures.
- Long life expectancy.
- Easily welded using hot air even at low temperatures.
- Can be recycled.
- With a signal layer that indicates damages and aids visual inspection onsite.
- Temporary UV stability during installation.
Technical properties
Standards and approvals
KingProof PVPT complies with EN 13491 and EN 13967.
How to use
Method of use
KingProof PVPT must be installed by experienced and qualified personnel.
Surface preparation
Surface must be clean, sound and dry. Remove any poorly attached materials or contaminations.
Cover or remove any sharp elements which could damage the PVC membrane. A compatible clean and dry separation layer should be placed between the substrate and the PVC membrane.
Application
Use a manual or an automatic hot air welding machine with a pressure roller to join the overlapping membrane sheets together. The width of the joint must be at least 30 mm. Adjust the temperature and machine speed of the air welding machine according to the ambient conditions.
To ensure all the welding is done correctly, all seams must be tested with screw driver or steel needle after the joint is cooled. Unwelded points must be repaired with a welding tool.
Limitations and notes
KingProof PVPT should not be in direct contact with bitumen, oil, solvent and tar as well as plastics other than PVC. On these surfaces it requires a separation layer of non-woven fabric (> 300 g/m²).
Coverage, packaging and storage
Packaging
| Thickness (mm) | 1.2 | 1.5 | 2.0 | 3.0 |
|---|---|---|---|---|
| Width (m) | 2.1 | |||
| Length (m) | 25 | 20 | ||
Different thicknesses and lengths are available on demand and for a minimum quantity.
Storage
Shelf life is 1 year when stored under cover, out of direct sunlight and protected from extremes of temperature.
Failure to comply with the recommended storage conditions may result in premature deterioration of the product or packaging. For specific storage advice consult KingKrete's Technical Services Department.
| TECHNICAL PROPERTIES | ||||
|---|---|---|---|---|
| Colour | Grey & black | |||
| Thickness: EN 1849-2 | 1.20 mm ± 5% | 1.50 mm ± 5% | 2.0 mm ± 5% | 3.00 mm ± 5% |
| Mass per unit areaEN 1849-2 | 1.6 ± 0.1 Kg/m² | 2.0 ± 0.1 Kg/m² | 2.7 ± 0.1 Kg/m² | 4.0 ± 0.1 Kg/m² |
| Tensile strength UNI EN ISO 527-3 / ASTM D638 | ≥ 15 N/mm² | |||
| Elongation at break UNI EN ISO 527-3 / ASTM D638 | ≥ 300% | |||
| Cold flexibility: EN 495-5 | ≤ -35°C | |||
| Water pressure: (24 h at 10 bar) EN 1928 | No leaks | |||
| Resistance to impactEN 12691 | ≥ 500 mm | ≥ 750 mm | ≥ 1000mm | ≥ 1800 mm |
| Resistance to static loading: EN 12730 | ≥ 20 Kg | |||
| Static puncture: EN 12236 | 2.0 ± 0.25 kN | 2.5 ± 0.25 kN | 3.0 ± 0.25 kN | 4.0 ± 0.25 kN |
| Tear resistance EN 12310/2 | ≥ 100 kN/m | |||
| Microbiological resistanceEN 12225 | Compliant | |||
| Root resistance UNI CEN/TS 14416 | No perforation | |||
| Resistance of welded seam: EN 12317/2 | Break outside joints | |||
| Resistance to oxidationEN 14575 | In conformity | |||
| Thermal aging: EN 1296 | Pass | |||
| Fire Resistance: EN 13501-1 | Euroclass E | |||
| Resistance to acid and alkaline solutions (28 d at 23°C)DIN 16726 | ± 20% max elongation | |||
Health and safety
As with all chemical products, care should be taken during use and storage to avoid contact with eyes, mouth, skin and foodstuffs. Treat splashes to eyes
and skin immediately. If accidentally ingested, seek
medical attention. Reseal containers after use. Use in well ventilated areas and avoid inhalation.