Loctite PC 7228 Nordbak Brushable Ceramic White 1Kg
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Loctite PC 7228 (Nordbak Brushable Ceramic White) is a two-component, ceramic-reinforced epoxy coating. The resin is white and the hardener amber; mixed, it is a white liquid.
It is an abrasion-resistant coating, for repairing heat exchangers and condensers, lining tanks and chutes, and as a top coat over Nordbak wearing compounds. It cures at room temperature.
Where this product is used
- Abrasion-resistant coating
- Repairing heat exchangers and condensers
- Lining tanks and chutes
- Resurfacing rudders and pintle housings
- Repairing cooling pump impellers and butterfly valves
- Top coat over Nordbak wearing compounds
Features
- Two-component, ceramic-reinforced epoxy
- Room temperature cure
- Gel time 34 to 48 minutes (400g mass, 25 °C)
- Recoat after 1 to 3 hours, cure time 5 hours (25 °C)
- Coverage 1.1 m² per kg at 0.5mm thickness
- Compressive strength 86 N/mm² (ISO 604), hardness Shore D 85
- Typical dry service -29 °C to 93 °C
Key specifications
| Specification | Detail |
|---|---|
| Brand | Loctite |
| Chemical type | Epoxy, two-component, ceramic reinforced |
| Appearance | Resin white; hardener amber; mixed white liquid |
| Mix ratio (resin:hardener) | 2.8:1 by volume; 4.5:1 by weight |
| Viscosity (25 °C) | Resin 120,000 to 180,000 mPa·s (Brookfield RV, spindle 7, 20rpm); hardener 500 to 900 mPa·s (spindle 2, 20rpm); mixed 17,000 mPa·s (cone and plate, 10 s-1) |
| Density | Resin 1.8 to 1.9kg/L; hardener 1.0 to 1.1kg/L |
| Gel time (400g mass, 25 °C) | 34 to 48 minutes |
| Recoat time / cure time (25 °C) | 1 to 3 hours / 5 hours |
| Coverage | 1.1 m² per kg at 0.5mm thickness |
| Compressive strength (ISO 604, 25 °C) | 86 N/mm² |
| Lap shear strength (ISO 4587, grit-blasted steel, 24 h at 25 °C) | 24 N/mm² |
| Hardness (ISO 868) | Shore D 85 |
| Service temperature | Typically -29 °C to 93 °C dry; dry resistance 110 °C and wet resistance 70 °C (CSA-Z245.20-06/Z245.21-06 Rating 2) |
| Storage | Optimal 8 °C to 21 °C, unopened, dry |
Choosing the right option
For a filled wearing compound for impact areas, see Loctite PC 9593 Nordbak Fast Curing Wearing Compound Kit - 3Kg. For a steel-filled repair putty, see Loctite 3471 Fixmaster Steel Putty - 454g.
See also: Loctite PC 9593 Nordbak Fast Curing Wearing Compound Kit - 3Kg, Loctite 3471 Fixmaster Steel Putty - 454g, Loctite 3463 Metal Magic Steel (EA 3463 Metal-filled Epoxy Stick).
Using it
Material temperature should be 20 °C to 30 °C. Mix resin and hardener for 3 to 5 minutes at 2.8:1 by volume (4.5:1 by weight).
Recoat after 1 to 3 hours at 25 °C. Cure time is 5 hours at 25 °C.
Keep open flame away from the cured coating. Use a supplied-air respirator for welding or torch cutting near cured compound.
Storage and handling
Store unopened in a dry place. The optimal storage temperature is 8 °C to 21 °C. Storage outside 8 °C to 28 °C can affect the properties of the product.
Limits and safety
Not recommended for pure oxygen or oxygen-rich systems, or for sealing chlorine or strong oxidisers. No open flame near cured compound, and use a supplied-air respirator for welding or torch cutting nearby. Read the safety data sheet before use.
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