Sikaflex 252 600ml black one-component polyurethane adhesive for metal, GRP laminates, plastics, ceramic materials, flexible
Product code: 7194
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Product description
Sikaflex-252 black 600 ml is a one-component, non-sag polyurethane adhesive-sealant designed for installation and sealing of large components in commercial vehicles. It cures by ambient moisture, fills gaps efficiently and dampens vibration.
Benefits and Unique Features
- One-component – ready to use without mixing
- Non-sag – stays in place on vertical surfaces
- High elasticity – excellent vibration damping
- Paintable after initial cure
- Electrically non-conductive
- Withstands dynamic loads
Properties and Applications
- Chemical base: one-component polyurethane
- Colour: black
- Density (uncured): 1.2 kg/l
- Application temperature: 10 – 35 °C
- Open time: ≈ 35 min
- Skin-over time: ≈ 40 min
- Shore A hardness: 50
- Tensile strength: 3 MPa
- Elongation at break: 400 %
- Tear propagation resistance: 7 N/mm
- Shear strength: 2.5 MPa
- Service temperature: –40 °C to +90 °C (4 h), briefly +130 °C/ +150 °C (1 h)
- Applications: bonding and sealing coated metals, GRP laminates, ceramics and plastics in bus, motorhome and truck bodies
Technical Specifications
| Parameter | Value |
|---|---|
| Cartridge volume | 600 ml |
| Chemical base | One-component polyurethane |
| Density | 1.2 kg/l |
| Open time | 35 min |
| Skin-over time | 40 min |
| Shore A hardness | 50 |
| Tensile strength | 3 MPa |
| Elongation at break | 400 % |
| Tear propagation resistance | 7 N/mm |
| Shear strength | 2.5 MPa |
| Service temperature | –40 °C to +90 °C, briefly +130 °C/ +150 °C |
| Shelf life | 12 months (stored < 25 °C) |
Instructions for Use
- Prepare substrates – clean, degrease and dry all surfaces.
- Shake cartridge before use and fit into a caulking gun.
- Apply at 10 – 35 °C; optimal at 15 – 25 °C.
- Apply triangular bead for uniform seal thickness.
- Join parts within open time (35 min).
- Smooth joint before skin-over time (40 min) using Sika® Tooling Agent N.
- Remove uncured material with Sika Remover-208; cured sealant must be removed mechanically.
- Clean tools and skin with Sika Cleaner-350H and water immediately after use.
Storage Recommendations
Store in a cool, dry place at +5 °C to +25 °C, away from direct sunlight and frost. Keep container tightly closed in its original packaging.
Product safety
Responsible person in the EU
Sika Poland Sp. z o.o.
Karczunkowska 89
02-871 Warszawa, Poland
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