Product Data Sheet Show all documents

SikaSwell® S-2

Polyurethane Hydrophilic Swellable Sealant

SikaSwell® S-2 is a 1-part polyurethane hydrophilic sealant which swells in contact with water to seal all types of construction joints and penetrations in concrete.

  • Easy to apply
  • Good adhesion to various substrates
  • Optimised expansion rate, therefore no damage to fresh concrete during curing
  • Highly economical
  • Swells in contact with water
  • Permanently water resistant
  • Adaptable to fit many different detail tasks
Product Data Sheet Show all documents

Usage

Sealing:
  • Construction joints
  • Pipe and steel work penetrations through walls and floor slabs
  • Around all types of penetrations and construction joints
  • Construction joints in cable ducts, etc.
Fixing / Adhering swellable profiles:
  • SikaFuko® Swell 1 Injection hoses
  • SikaSwell®-A Profiles
  • SikaSwell®-P Profiles
 

Advantages

  • Easy to apply
  • Good adhesion to various substrates
  • Optimised expansion rate, therefore no damage to fresh concrete during curing
  • Highly economical
  • Swells in contact with water
  • Permanently water resistant
  • Adaptable to fit many different detail tasks

Packaging

600 ml unipacs

20 unipacs/box, 48 boxes/pallet

300 ml cartridges

12 cartridges/box, 112 boxes/pallet

Colour

Oxide red

Product Details

Sustainability / Certifications / Approvals

APPROVALS / CERTIFICATES

  • Agrément Certificate, Sika Hydrophilic Waterstops, BBA, Certificate No.13-4994
  • Test Report, Water tightness testing of hydrophilic waterstop, Vattenfall, Report No.1278-10
  • Test Report, Water Permeability Test, Hong Kong Testing Co Ltd, Report No.S016410M01064
Product Information

Composition

1-part polyurethane, moisture curing

Shelf life

9 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 and +25°C. Always refer to packaging.
Technical Information

Shore A hardness

Swollen (7d in tap water)

> 10

Non-swollen (7 d / +23 °C / 50 % r.h.)

40–60

Change of volume

1 day in tap water

< 25 %

7 days in tap water

< 100 %

Swelling properties in salty water will be reduced and delayed.

Application

Application Information

Sag flow

< 2 mm(ISO 7390)

Substrate moisture content

Dry or matt damp

Curing rate

1 day (+23 °C / 50 % r.h.)

~2,0 mm

10 days (+23 °C / 50 % r.h.)

~10,0 mm

Skinning time

2 hours (+23 °C / 50 % r.h.)

(CQP 019-1)

Ambient air temperature

+5 °C min. / +35 °C max.

Substrate temperature

+5 °C min. / +35 °C max.
Consumption

Consumption

Size of triangular section

600 ml unipacs

300 ml cartridges

15 mm

6,2 m

3,1 m

20 mm

3,6 m

1,8 m

Consumption depends on the roughness and absorbency of the substrate.

These figures are theoretical and do not allow for any additional material due to surface porosity, surface profile, variations in level or wastage etc.
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® S-2 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 sealant is to be placed.

 

CLEANING OF EQUIPMENT

Clean all tools and application equipment immediately after use with Sika® Colma-Cleaner. Hardened material can only be removed mechanically.

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