Sika Sikaflex Pro 3
Sika Sikaflex Pro 3
📋 Product specifications are for reference only.
All product details should refer to the official manufacturer documents. For official product data sheets or technical enquiries, please contact us via WhatsApp.
Sikaflex PRO-3 — Polyurethane Sealant for Floor Joints & Civil Engineering
Sikaflex® PRO-3 is a 1-component, moisture-curing polyurethane elastic joint sealant based on Sika i-Cure® Technology, designed for floor joints and civil engineering applications. It provides a waterproof seal with good mechanical and chemical resistance, remaining elastic over a wide temperature range.
Key Features
- 1-component, moisture-curing — ready to use
- ± movement capability (ASTM C 719) / ±
- Bubble-free curing — uniform, defect-free seal
- Over-paintable (after full cure; non-flexible paint systems may crack)
- Very low emissions (GEV-Emicode EC1PLUS) — suitable for indoor environments
- Cleanroom certified
- LEED v4 EQc 2 compliant
Applications
- Floor joints — horizontal and vertical sealing in floors, pedestrian areas and traffic zones
- Food industry — floor and wall joints in food processing facilities
- Cleanrooms — certified cleanroom joint sealing
- Sewage treatment plants — chemical-resistant joint sealing
- Tunnels — structural joint sealing
- Car park decks — parking structure floor and ramp joints
- Warehouses and production floors — industrial floor joint sealing
Technical Data
| Property | Value |
|---|---|
| Chemical Base | Polyurethane i-Cure® Technology |
| Colour | Concrete grey (other colours on request) |
| Density | ~ |
| Movement Capability | ± / ± (ASTM C 719) |
| Shore A Hardness | ~37 (after 28 days) |
| Elongation at Break | ~ |
| Elastic Recovery | ~ |
| Tear Propagation Resistance | ~8.0 N/mm |
| Service Temperature | wide temperature range |
| Skin Time | ~ |
| Tooling Time | ~ |
| Curing Rate | ~3.5 mm / 24 hours ( / r.h.) |
| Packaging | 600 ml cylindrical foil pack, 20 per box |
| Shelf Life | 15 months (unopened, dry storage) |
Limitations
- Not suitable for swimming pools or surrounding areas
- Not for use on bituminous substrates, natural rubber, or EPDM rubber
- Test for plasticiser migration before use on reconstituted or natural stone
- Do not expose uncured product to alcohol-containing materials
