Sika Sikagard 62
Sika Sikagard 62
Sikagard 62 — 2-Part Epoxy Protective Coating
Sikagard®-62 is a two-part, rigid, 100% solids, solvent-free, high-build epoxy resin protective coating. It provides a chemical-resistant, mechanically durable protective layer for concrete and steel surfaces. WRAS approved for contact with drinking water, CE marked to EN 1504-2:2004, and listed on the Eco-Product Directory for green building initiatives.
Key Features
- 100% solids, solvent-free — safe for confined spaces
- Excellent chemical and mechanical resistance (Shore D ~80)
- High build — ~0.2 mm per layer
- Impervious to liquids
- Easy to mix and apply
- WRAS approved for drinking water contact (BS 6920-1:2000)
- CE marked — EN 1504-2:2004 concrete protection
- LEED v2009 IEQc 4.2 conformity (low-emitting paints and coatings)
Applications
- Chemical-resistant protective layer on concrete, stone, cementitious mortars, and renderings
- Lining in storage tanks and silos
- Anti-corrosion coating on steel in food processing plants, sewage works, farms, chemical and pharmaceutical facilities, and beverage industry
- Protective coating on epoxy resin based products and steel
Technical Specifications
| Property | Value |
|---|---|
| Chemical Base | Epoxy resin |
| Components | 2-part (Part A + Part B) |
| Solid Content | 100% (solvent-free) |
| Colour | Pebble grey, light grey, light green, white (others on request) |
| Density (mixed) | ~1.37 kg/L at +23°C |
| Shore D Hardness | ~80 (DIN 5305) |
| Tensile Adhesion Strength | > 1.5 N/mm² (ISO 4624) |
| Mixing Ratio (A:B) | 3 : 1 by weight |
| Consumption | ~0.30 kg/m² per layer, 2–3 layers minimum |
| Layer Thickness | ~0.2 mm per layer |
| Ambient / Substrate Temp | +8°C to +40°C (min. 3°C above dew point) |
| Relative Humidity | < 80% |
| Packaging | 10 kg per set (Part A: 7.50 kg + Part B: 2.50 kg) |
| Shelf Life | 12 months (Part A and Part B) |
Thermal Resistance
| Exposure Duration | Dry Heat |
|---|---|
| Permanent | +50°C |
| Max. 7 days | +80°C |
| Max. 12 hours | +100°C |
Pot Life
| Temperature | Time |
|---|---|
| +10°C | ~30 min |
| +20°C | ~20 min |
| +30°C | ~10 min |
Overcoating and Full Cure Times
| Temperature | Min. Overcoat | Max. Overcoat | Full Cure |
|---|---|---|---|
| +10°C | ~30 hours | ~3 days | ~14 days |
| +20°C | ~10 hours | ~2 days | ~10 days |
| +30°C | ~6 hours | ~1 day | ~5 days |
FAQ
Can Sikagard 62 be used for drinking water facilities?
Yes. Sikagard®-62 is WRAS approved (test report M104991, 2011) and meets BS 6920-1:2000 for contact with wholesome water, making it suitable for lining drinking water storage tanks and reservoirs.
How many coats are required?
A minimum of 2–3 layers at approximately 0.30 kg/m² per layer (~0.2 mm per layer). A glass fabric reinforced system is also available for enhanced performance — contact Sika Technical Services for details.
How long does full cure take?
At +20°C, full cure takes approximately 10 days. At +10°C it extends to about 14 days, while at +30°C it shortens to about 5 days. The coating must be protected from mechanical damage until fully cured.
