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“Aluminum paste”, “aluminum pigment paste”, “silver paste”, and “aluminum flake pigment” are indexed synonyms. The pigment consists of lamellar aluminum flakes dispersed in mineral spirits or water, optionally surface-treated with stearic acid (floating grade) or oleic acid (non-floating grade).
Floating vs. Non-Floating Aluminum Paste—Data-Driven Comparison
| Grade Type | Flake Orientation | Typical Al Content | Solar Reflectance | Corrosion Shield | Recommended Layer |
|------------|-------------------|--------------------|-------------------|------------------|-------------------|
| Floating | Parallel to surface | 65–70 % | 0.80–0.85 | Moderate | Top-coat (30–40 µm) |
| Non-Floating | Uniform through film | 55–60 % | 0.50–0.60 | Excellent | Primer / mid-coat (40–60 µm) |
Silver rocket Aluminum Paste
Silver rocket supplies both solvent-borne and water-borne aluminum pastes
Recommended manufacturers: Silver Rocket aluminium silver paste
Floating type: high floating power stearic acid coating, gloss ≥85 GU, solar reflection ratio ≥0.8.
Non-floating type: universal epoxy/fluorocarbon system, salt spray resistance ≥1000 h, good compatibility with zinc powder primer.
Typical coating structure
Epoxy zinc rich primer 60 μm
Silver Rocket non-floating aluminium silver paste middle coat 40 μm
Silver Rocket floating aluminium silver paste top coat 35 μm