Hydrophilic Swelling Waterstop - SikaSwell® A

Acrylic swellable joint sealing profile

SikaSwell® A is an acrylic sealing profile which swells in contact with water to seal all types of joints and penetrations in concrete. It has a rectangular profile and is available in several sizes.

• Easy to apply
• Can be applied on different substrates
• Highly economical
• Swells in contact with water
• Can swell into cracks and gaps
• Long-term reliability tested
• Resistant against water and various chemical substances
• No hardening time required
• No welding required
• Adaptable to fit many different detailing tasks
• Different types and dimensions available

Usage

To seal:

• Construction joints
• Pipe and steel work penetrations through walls and floor slabs
• Construction joints in cable ducts, etc.
• Around all types of penetrations through concrete

Advantages

• Easy to apply
• Can be applied on different substrates
• Highly economical
• Swells in contact with water
• Can swell into cracks and gaps
• Long-term reliability tested
• Resistant against water and various chemical substances
• No hardening time required
• No welding required
• Adaptable to fit many different detailing tasks
• Different types and dimensions available

Color

Rectangular red profiles. Swelled and unswelled profiles shown in image below.

Product Details

Product Information

Chemical Base

Acrylic polymer

Shelf Life

36 months from the date of production

Storage Conditions

The product must be stored in original, unopened and undamaged sealed packaging in dry conditions at temperatures between +5 °C (+41°F) and +35 °C (+95°F). Always refer to packaging.

System Information

System Structure

The following system products must be used:

• SikaSwell® A
• SikaSwell® S-2 Sealant

Technical Information

Swelling Pressure

16 bars after 3 days stored in tap water

Service Temperature

0 °C (+32°F) min. / +50 °C (+122°F) max.

Application

Application Information

Substrate Moisture Content

Dry or matt damp. Do not apply in construction joints when standing water is existing.

Ambient Air Temperature

+5 °C (+41°F) min.

For installation below +5 °C (+41°F) ambient temperature, special measures are required in accordance with relevant national regulations and Sika guidelines

Substrate Temperature

+5 °C (+41°F) min.

For installation below +5 °C (+41°F) substrate temperature, special measures are required in accordance with relevant national regulations and Sika guidelines

Application Steps

SUBSTRATE QUALITY

The substrate must be sound, clean, dry or matt damp, free from all surface contaminants

SUBSTRATE PREPARATION

Existing Concrete

All loose particles, release agents, laitance, paint, rust and other poorly adhering materials must be removed by suitable hand or mechanical preparation.

Freshly cast concrete

During concreting, compact well around SikaSwell® A profiles to provide a dense concrete without any honeycombing or voids.

Surfaces which are excessively rough can be susceptible to leaking. It is recommend to smoothen the freshly cast concrete with a batten where the sealing profile is to be placed.

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