SikaSwell® S-2
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.
- 1-part, easy and fast to apply
- Highly economical joint sealing solution compared to other systems
- Versatile solution for joints and details
- Optimised expansion rate, no damage to fresh concrete
- Permanently water resistant (wet & dry cycles)
- Good adhesion to various substrates
Usage
Joint 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.
- SikaSwell® A Profiles
- SikaSwell® P Profiles
Advantages
- 1-part, easy and fast to apply
- Highly economical joint sealing solution compared to other systems
- Versatile solution for joints and details
- Optimised expansion rate, no damage to fresh concrete
- Permanently water resistant (wet & dry cycles)
- Good adhesion to various substrates
Packaging
| 300 ml cartridges | 12 cartridges / box |
| 600 ml unipacs | 20 unipacs / box |
Refer to current price list for packaging variations
Colour
Oxide red
Product Details
APPROVALS / CERTIFICATES
- Water Pressure Resistance and Durability tests, SikaSwell® S-2, BBA, Test certificate No.13/4994
- Water Tightness SikaSwell® S-2, Vattenfall, Test report No. 1278-10
- Sealing test Building Rules List A, SikaSwell® S-2, WISSBAU, Test report No. 2017-313
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.
Density
| 1,24 kg/l (at +23 °C) | (ISO 2811) |
Shore A hardness
| Non-swollen (7 days / +23 °C / 50 % r.h.) | 30–50 |
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
Sag flow
| < 2 mm (+23 °C / 50 % r.h.) | (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
| 60 minutes (+23 °C / 50 % r.h.) | (EN 15651) |
Place SikaSwell® profiles onto SikaSwell® S-2 within a maximum of 30 minutes.
Ambient air temperature
+5 °C min. / +35 °C max.
Substrate temperature
+5 °C min. / +35 °C max.
Consumption
| Size of triangular section | 300 ml cartridges | 600 ml unipacs |
| 12 mm | 4,1 m | 8,2 m |
| 15 mm | 3,1 m | 6,2 m |
| 20 mm | 1,8 m | 3,6 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.
SUBSTRATE QUALITY
The substrate must be sound, clean, dry or matt damp and free from all surface contaminants that could affect adhesion of the sealant.
SUBSTRATE PREPARATION
Existing Concrete
All loose particles, release agents, laitance, paint, rust and other poorly adhering materials must be removed by hand or mechanical preparation.
Freshly cast concrete
Surfaces which are excessively rough can be susceptible to leaking. It is recommended 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.