Pool System Build-Up
- 1 Concrete Substrate
- 2 Crack Repair (if required)
- 3 ACTFLEX FLEXPLUS
- 4 ACTFLEX HYDROPLUG
- 5 ACTFLEX AT MESH
- 6 ACTFLEX 988 CWP (2 Coats)
- 7 Tile Adhesive
- 8 Pool Finish
PREBAR PVC Waterstop Internal
or 4 interest-free payments with
Flat internal corner tape, 250mm wide. Supplied on roll for easy handling.
Prebar Internal is a flat ribbed corner tape 250mm wide supplied on a roll. Install it on internal corners before tiling to reinforce and control grout.
What it's for
- Internal corners on walls and floors in wet areas
- Reinforces corners and prevents grout loss during tiling
- Applied before waterproofing membrane or tile adhesive
Why waterproofers buy it
- Wide format covers the full corner depth
- Roll format is convenient to handle and apply
- Reduces grout wash-out and corner cracking
- Cost effective way to protect all internal corners
Specs
250mm wide. Stainless steel.
Not for
External corners, or corners subjected to high lateral loads.
Tensile strength of 15.49 MPa against a 12.00 MPa minimum requirement
Heat weldable at 190C to 200C for continuous, leak-proof on-site joints
Prefabricated intersection pieces eliminate the site-fabricated tees and crosses where waterstops typically fail
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PREBAR PVC Waterstop Internal
150mm X 15m
The Waterproofing Shop
22/872 Canterbury Road
Roselands NSW 2196
Australia
Product Details
How to Use
Technical Specifications
Product Files
PREBAR PVC Waterstop Internal
Sale price$242.00
Frequently bought together
System Build-Up Guide
Correct application makes all the difference.
Retaining Wall System Build-Up
- 1 Concrete Substrate
- 2 Crack Repair (if required)
- 3 ACTFLEX MS PRO
- 4 ACTFLEX AT MESH
- 5 ACTFLEX 988 CWP (2 Coats)
- 6 Protection Board (Optional)
- 7 Drainage System
- 8 Backfill
Tank System Build-Up
- 1 Concrete Substrate
- 2 Crack Repair (if required)
- 3 ACTFLEX FLEXPLUS
- 4 ACTFLEX AT MESH
- 5 ACTFLEX 988 WMP (2 Coats)
- 6 Protective Coating (Optional)
- 7 Water
Technical overview
Key applications
- Water-retaining structures - basement slabs, lift pits, retaining walls and suspended slabs
- Swimming pools, reservoirs, water towers and sewage tanks
- Dams, culverts, canals and spillways
- Bunded areas around liquid-retaining tanks
- Water-excluding structures - basements and underground car parks
- Tunnels and subways
- Abutments and retaining walls
- Roof decks and podium areas
- Construction and expansion joints in horizontal and vertical cast-in-situ concrete
Surface suitability
- Concrete (cast-in-situ construction and expansion joints
- waterstop centred in the joint and fully encased on both sides with the design cover maintained)
Not a waterproofing membrane. PREBAR PVC WATERSTOP seals a joint within the structure; it does not waterproof a surface. It must be fully encased in concrete on both sides with the design cover maintained, and centred and correctly aligned in the joint - an off-centre waterstop halves the water path on one side. Do not install over dirty, wet or contaminated surfaces. Do not fold, kink or crease the profile, as a folded waterstop creates a permanent water path. All joins must be fully heat welded; taped, glued or overlapped joins are not acceptable. Do not overheat during welding, as PVC degrades above the stated welding range. Secure vertical installations so the waterstop stays in position throughout the pour. Do not store above 40C or in direct sunlight. Joint design, profile selection and hydrostatic duty are the design responsibility of the project engineer.
Technical Specifications
| Product Type | Thermoplastic polyvinyl chloride waterstop profile |
| Material | Polyvinyl chloride (PVC) |
| Colour | Blue |
| Profiles | Internal and external, for construction and expansion joints |
| Tensile Strength | 15.49 MPa, pass against a 12.00 MPa minimum (BS 2782.320A) |
| Elongation at Break | 330%, pass against a 3.00% minimum (BS 2782.320A) |
| Hardness | 75 Shore A, pass against 75 +/- 5 Shore A (BS 2782:365B) |
| Specific Gravity | 1.41 g/cm3, pass against 1.38 +/- 0.03 g/cm3 (BS 2782:620B) |
| Water Absorption at 23C | 0.19% (ISO 62) |
| Thermal Stability, Congo Red at 180C | Minimum 50 minutes (BS 2782:130A) |
| Loss of Mass | 1.65 g/cm3 (BS EN 608 11-3-2:1995) |
| Welding Temperature | Approximately 190C to 200C* |
| Service Temperature Range | -25C to +70C* |
| Roll Weight | Dependent on profile type* |
| Storage Temperature | +10C to +40C* |
| Shelf Life | 5 years from the date of production, correctly stored* |
| * Typical Forspec R&D characteristic values, not for engineering design without written Forspec confirmation | |
Real Projects. Real Results.
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Before
After
Pool Renovation
Gold Coast, QLD
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Before
After
Below Ground Retaining Wall
Sydney, NSW
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Before
After
Concrete Water Tank
Perth, WA
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Before
After
Commercial Podium
Melbourne, VIC
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Before After
Swimming Pool Construction
Brisbane, QLD
Watch the install
Step-by-step from prep to top coat. Filmed on the tools, not in a studio.
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Frequently asked questions
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What is PREBAR Internal Waterstop used for?
CompatibilityPREBAR Internal is a cast-in-situ PVC waterstop for watertight sealing in concrete construction and expansion joints - used in water-retaining structures (tanks, pools, basements) and water-excluding structures (below-grade walls, foundations).
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How does an internal waterstop work?
PerformanceThe waterstop is positioned centrally in the concrete joint before the pour. Once concrete cures around it, the waterstop creates a continuous flexible barrier through the joint - water can't migrate from one side to the other.
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How is it installed?
InstallationPosition the waterstop centrally in the joint formwork before concrete is poured, ensuring half the width is embedded each side of the joint. Heat-weld waterstop splices for a continuous barrier. Pour and finish concrete normally.
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Specifications?
Compatibility250mm wide by 12.5m roll (also available 150mm x 15m). Recommended 10mm thickness. Blue thermoplastic PVC with Shore A 75 hardness. 330% elongation at break. Service temperature -20°C to +50°C. Complies with BS 2782.
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Heat-weldable joints?
PerformanceYes. PREBAR splices are heat-welded with a thermo-fusion tool to create continuous waterstop runs around corners and at intersections. The welded joints achieve the same waterproof barrier as the parent material.