Barrier 77
Product Description
This is a two component polyamide cured zinc rich epoxy coating. It is a high zinc dust containing product. It conforms to the compositional requirements of SSPC paint 20, level 2. It provides very good corrosion protection as part of a complete coating system. To be used as primer in atmospheric environments. Suitable for carbon steel, repair of inorganic zinc silicate coating and damaged galvanised steel substrates. This product complies with ASTM D520 type II zinc dust.
Product data
Film thickness per coat
Drying and curing time
Product data
| Property | Test/Standard | Description |
|---|---|---|
| Solids by volume | ISO 3233 | 53 ± 2 % |
| Gloss level (GU 60 °) | ISO 2813 | matt (0-35) |
Film thickness per coat
- Typical recommended specification range
| STANDARD GRADE | |
|---|---|
| Dry film thickness | 25 – 75 μm |
| Wet film thickness | 45- 140 μm |
| Theoretical spreading rate | 21.2 – 7.1 m²/l |
Drying and curing time
| Substrate temperature | 5 °C | 10 °C | 23 °C | 40 °C |
|---|---|---|---|---|
| Surface (touch) dry | 50 min | 20 min | 10 min | 4 min |
| Walk-on-dry | 3 h | 2 h | 1.5 h | 40 min |
