Glossmen Nm 115 Top

| Test / Metric | Result | Interpretation | |---------------|--------|----------------| | | 95 % of initial gloss | Excellent for exterior automotive finishes. | | Yellowing (ΔY) after 500 h UV | ΔY = 0.6 (ISO 4892‑2) | Near‑invisible yellowing – superior to many aromatic PU clear coats. | | Abrasion resistance (Taber 511, 1000 rev, CS‑17) | Wear depth = 10 µm | Comparable to OEM “high‑performance” top coats. | | Water soak test (24 h, 100 % RH) | No blistering, no delamination | Nanoparticle barrier effectively blocks moisture migration. | | Salt‑spray (ASTM B117, 500 h) | No rust-through on primed steel | Ideal for marine and coastal applications. | | Impact resistance (10 J) | No cracking, no chipping | Suitable for high‑impact surfaces (e.g., truck bodies). |

| Step | Action | Key Tips | |------|--------|----------| | | Clean, de‑oil, and sand to 80‑120 grit; remove all contaminants. | Use IPA or a dedicated prep solvent; verify surface cleanliness with a “wet‑squeeze” test. | | 2. Primer | Apply Glossmen NM‑115 Primer (or any compatible aliphatic PU primer) to achieve ≥ 70 % adhesion. | Allow primer to flash (5‑10 min) before top coat. | | 3. Mixing | Combine Part A (base) and Part B (hardener) at 2 : 1 by weight (or as specified). Mix for 2 min with a low‑speed mechanical stirrer. | Avoid entraining air; let the mixture sit 30 s to let bubbles rise. | | 4. Filtration | Pass mixed material through a 100 µm (or finer) filter. | Prevents nozzle clogging, especially when using nanofilled product. | | 5. Spray | Apply 1st thin coat (≈ 20 µm DFT) using 1.2–1.4 mm nozzle, 20 psi at the gun, 30 psi at the fan. Overlap 50 % (wet edge). | Keep spray gun 15‑20 cm from surface; maintain a consistent speed. | | 6. Flash & Recoat | Flash 5‑10 min (depending on ambient). Apply 2nd coat using same parameters. | For high‑gloss finish, a 3rd “wet‑to‑wet” coat may be added. | | 7. Curing | Allow to fully cure 24 h at 20 °C before handling; 48 h for full chemical resistance. | Use a temperature‑controlled curing chamber for faster turnover in production lines. | | 8. Final inspection | Check for orange peel, fish‑eyes, and gloss uniformity (target ΔE*ab < 2). | Polish with a fine‑grit (1500‑2000) polishing pad if required for showroom finish. | glossmen nm 115 top

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