Sika Waterbar VN

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Stacks of yellow Sika Waterbar barrels in a warehouse setting.

Yellow Sika Waterbar containers with installation images on a construction site background

Yellow conduit pipe against a concrete wall with rebar

Illustration of a concrete floor with a yellow metal strip and pipe.

3D model of a building foundation with steel reinforcement and yellow protective strip

Insulation of a wall with yellow insulation material and a red ladder in the background.

Sika

(0)

$106.20

Roll Length: V-15 = 20m

V-15 = 20m V-20 = 20m V-25 = 20m

This product will be available for sale in 2 weeks, but you can pre-order now to receive 10% discount!

Sika Waterbar® V VN

A flexible thermoplastic PVC waterstop designed to stop water migration through construction joints in concrete structures. The multi-rib V-profile is cast centrally into stop-ends and sealing begins as soon as the concrete hardens. Pre-punched eyelets allow easy fixing to reinforcement. Can be site-welded using a Sika electric welding knife.

Overview

Specifications

Property	Value	Standard
Material	Flexible thermoplastic PVC (Polyvinyl Chloride)	–
Colour	Yellow	–
Shore A Hardness	>70	ASTM D2240
Tensile Strength	12 N/mm (±5%)	ASTM D412-06
Elongation	300% (±5%)	ASTM D412-06
Service Temperature	−35°C to +55°C	–
Chemical Resistance (permanent)	Seawater, sewage	–
Chemical Resistance (temporary)	Diluted inorganic alkalis, mineral acids, mineral oils and fuels	–
Shelf Life	5 years from date of production	–
Storage	Dry, shaded place, protected from direct sunlight	–

System Sizes

Type	Width (mm) ±5mm	Roll Length (m)	Nominal Thickness (mm) ±10%
V-15	150	20	3.0–5.0
V-20	200	20	3.0–5.0
V-25	250	20	3.0–5.0
V-32	320	15	3.0–8.0

Usage

Water reservoirs and swimming pools
Sewage treatment plants
Basements and below-ground structures
Retaining walls and lift shafts
Tunnels, culverts, and service pits
Construction joints and movement joints with nominal movement (e.g. basement or retaining walls)

Advantages

Sealing starts as soon as concrete has hardened
Multi-rib V-profile provides impenetrable barriers to water migration
Can be easily site-welded using Sika electric welding knife
Pre-punched eyelets for easy fixing to reinforcement with tie wires
Good chemical resistance to seawater, sewage, and diluted acids/alkalis
Available in 4 sizes for all application types

Packaging

V-15, V-20, V-25: 20 m rolls
V-32: 15 m rolls

Colour

Yellow flexible strip

Product Details

Product Information

Property	Detail
Composition	Polyvinyl Chloride (PVC)
Shelf Life	5 years from date of production
Storage Conditions	Dry, shaded place, protected from direct sunlight

Application

Application Steps

Fixing to Formwork: Fit the V-profile Sika Waterbar® V VN into the split formwork or shuttering for casting centrally into the stop-ends. Used for construction and movement joints where nominal movement is anticipated.
Fixing to Reinforcement: Use pre-punched eyelets in the outer flanges to fix the waterbar to steel reinforcement with tie wires, ensuring it is not displaced during concreting.
Placing Concrete – First Stage: Both sides must be well embedded in concrete. Vibrate carefully to avoid honeycombing. Use well-graded aggregate with concrete that is neither too plastic nor too stiff. Apply equal concrete pressure on both sides to prevent the ends from folding up.
Placing Concrete – Second Stage: Remove formwork carefully near the waterbar. Check the stop-end thoroughly for honeycombing and repair if necessary. Clean all hardened concrete remnants from the first stage before proceeding as per the first stage.
Site Welding: Use a Sika electric welding knife. Heat both ends simultaneously on the faces of the welding knife until an even molten bead of PVC appears. Withdraw the knife and immediately push the sections together. Hold rigid until the PVC cools and solidifies. Check for gaps or imperfect joints and re-weld if necessary.