PREBAR PVC Waterstop L-Piece External 150mm factory-fabricated corner fitting for creating watertight external concrete construction joints and waterproofing applications.

PREBAR PVC Waterstop L-piece for internal and external waterproof concrete corner junctions.

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PREBAR PVC Waterstop L-piece for internal and external waterproof concrete corner junctions.

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PREBAR L-Piece Flat

$53.00

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Factory-made 90 degree PREBAR corner. Weld it to the rolls instead of cutting and welding up corners on site.

PREBAR L-Piece Flat is a factory-fabricated 90 degree corner that joins two PREBAR PVC Waterstop runs around a concrete corner in the horizontal plane. External version for external corners, internal for internal corners. 150 mm and 250 mm to match the profile.

What it's for

External concrete corners in a PREBAR PVC Waterstop run
Internal concrete corners in a PREBAR PVC Waterstop run
Basements, retaining walls, lift pits, water tanks and all concrete structures

Why waterproofers buy it

Precise factory manufacturing, consistent quality
A consistent, watertight transition without complex site fabrication
Cuts installation time and labour
Heat weld ready. Welds directly to PREBAR PVC Waterstop rolls with hot air welding equipment

Specs

Blue PVC. 150 mm or 250 mm. Horizontal orientation, external or internal. One fitting per 90 degree corner.

Not for

Use as a waterproofing membrane. Must be fully encased in concrete on both sides with the design cover. Taped, glued or overlapped joins are not acceptable, and do not overheat during welding.

Factory-fabricated to eliminate difficult on-site fabrication and welding

Heat weld ready - welds directly to PREBAR PVC Waterstop rolls

Precise factory manufacturing for consistent quality

Size: External 150

External 150$53.00External 250$57.00Internal 150$53.00Internal 250$57.00

Quantity: 1

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Pickup available at The Waterproofing Shop

Usually ready in 24 hours

PREBAR L-Piece Flat

External 150

The Waterproofing Shop

Pickup available, usually ready in 24 hours

22/872 Canterbury Road
Roselands NSW 2196
Australia

+61280213517

Product Details

FORSPEC PREBAR L-PIECE FLAT is a prefabricated PVC waterstop fitting designed to create a secure 90-degree corner connection within PREBAR PVC Waterstop systems. Manufactured from high-quality thermoplastic PVC and factory fabricated to strict quality standards, it ensures continuous waterproofing performance at corner joints in cast-in-situ concrete construction.

Key Features & Benefits

Factory-Welded Construction: Manufactured under controlled conditions to ensure accurate dimensions and reliable watertight performance.

Maintains Waterproofing Continuity: Provides a seamless corner connection that preserves the integrity of the waterstop system.

Reduces Installation Time: Eliminates the need for complex on-site welding and fabrication, improving installation efficiency.

Durable PVC Material: Resistant to water, moisture, and common environmental conditions encountered in concrete structures.

Compatible with PREBAR PVC Waterstop Systems: Designed for seamless integration with corresponding PREBAR PVC Waterstop profiles.

Suitable for Critical Structures: Ideal for basements, retaining walls, tunnels, water tanks, wastewater treatment facilities, and other concrete structures requiring dependable joint waterproofing.

How to Use

Heat weld directly to PREBAR PVC Waterstop rolls using hot air welding equipment.

Technical Specifications

Product Type: Factory-fabricated 90 degree PVC waterstop corner fitting
Configuration: External or internal
Orientation: Horizontal
Material: PVC
Colour: Blue
Sizes Available: 150mm and 250mm
Jointing: Heat weld directly to PREBAR PVC Waterstop rolls using hot air welding equipment
Take-off: One fitting per 90 degree external waterstop corner
Take-off: One fitting per 90 degree internal waterstop corner
Note: Forspec publishes no product-specific Technical Data Sheet, test report or certificate for the prefabricated fittings. Every value above comes from the Forspec product pages and the PREBAR Prefabricated Fittings brochure

Product Files

PREBAR L-Piece FlatExternal 150

$53.00

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System Build-Up Guide

Correct application makes all the difference.

View All Details

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

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

PREBAR L-Piece Flat is a factory-fabricated 90 degree horizontal corner fitting that connects two PREBAR PVC Waterstop runs around external or internal concrete corners. It is heat welded directly to PREBAR PVC Waterstop rolls and is available in 150mm and 250mm to match the profile width. Forspec publishes no product-specific Technical Data Sheet, test report or certificate for the PREBAR prefabricated fittings: the Technical Data Sheet link on the Forspec product page returns the 4-page PREBAR Prefabricated Fittings range brochure. No performance figure, standard or classification is claimed for this fitting. The BS 2782 test results published for PREBAR PVC WATERSTOP belong to the waterstop roll and have not been carried across.

Key applications

Basements
Retaining walls
Lift pits
Water tanks
All concrete structures
External and internal 90 degree waterstop corners in cast-in-situ concrete construction joints

Forspec publishes no limitations, safety data or handling instructions for the prefabricated fittings themselves. Install as part of a PREBAR PVC Waterstop system and apply the limitations in the PREBAR PVC WATERSTOP Technical Data Sheet: the fitting must be fully encased in concrete on both sides with the design cover maintained, centred and correctly aligned in the joint, and must not be installed over dirty, wet or contaminated surfaces. Do not fold, kink or crease it. 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. 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	Factory-fabricated 90 degree PVC waterstop corner fitting
Configuration	External or internal
Orientation	Horizontal
Material	PVC
Colour	Blue
Sizes Available	150mm and 250mm
Jointing	Heat weld directly to PREBAR PVC Waterstop rolls using hot air welding equipment
Take-off	One fitting per 90 degree external waterstop corner
Take-off	One fitting per 90 degree internal waterstop corner
Note	Forspec publishes no product-specific Technical Data Sheet, test report or certificate for the prefabricated fittings. Every value above comes from the Forspec product pages and the PREBAR Prefabricated Fittings brochure