Glazing Powder for Melamine Tableware – Complete Application Guide for Manufacturers

20/08/2025

Glazing Powder for Melamine – Application Guide, Types & Specs

Meta Description: Discover how melamine glazing powder is applied to achieve high-gloss, scratch-resistant surfaces on melamine tableware. Step-by-step process, parameters and FAQs.

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H1. Glazing Powder for Melamine Tableware – Uses, Application Steps & Best Practices

H2. What Is Glazing Powder?
Glazing powder is a transparent, thermosetting melamine-formaldehyde resin compound (also called melamine glazing compound, MGC) supplied as fine, free-flowing powder (D50 ≈ 30 µm). After curing it forms a hard, crystal-clear, non-porous layer with:

Gloss > 95 GU (60°)
Pencil hardness ≥ 6 H
Water absorption < 0.1 % in 24 h

H2. Core Applications

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H2. Step-by-Step Application Workflow
Substrate Preparation
Ensure melamine substrate is fully cured and cooled to < 50 °C.
Remove dust with antistatic air knife; static < 0.5 kV.
Glaze Powder Dosing
Target weight = 6–8 g dm⁻² for gloss layer; use loss-in-weight feeder (±0.05 g accuracy).
Pre-warm powder to 40 °C to reduce moisture pick-up.
Even Distribution
Sprinkle or electrostatic spray (60 kV) to achieve uniform coverage.
Jolt table (200 strokes min⁻¹, 5 s) to level powder.
Mould Closure & Curing
Temperature: 160 °C (platen)
Pressure: 25 MPa
Time: 18–25 s for 0.12 mm layer (DSC DoC ≥ 95 %)
Degassing (Optional)
Same principle as substrate: 0.3 s pressure release at 50 % cure time to eliminate micro-bubbles.
Cool & Eject
Cool to < 60 °C under pressure; demould without sticking.
Edge trimming and UV inspection for pinholes.
H2. Quality Control KPIs After Glazing
H2. Troubleshooting Common Defects
H2. Packaging & Shelf Life
20 kg moisture-barrier PE bags inside 5-ply kraft cartons.
Store < 25 °C & < 60 % RH; shelf life 12 months from production date.
H2. Sustainability & Compliance
Halogen-free, BPA-free, REACH & FDA 21 CFR §177.1460 compliant.
Recyclable paper packaging available on request.
H2. Download Area
Technical Data Sheet (PDF)
MSDS & FDA Migration Report
Colour Swatch Card (Gloss & Pigmented)
H2. Get Expert Support
Need custom gloss levels, anti-slip micro-texture or metallic effects? Our R&D team offers free formulation audits.
Email: shj008@melaminemouldingpowder.com | Tel＆WhatsApp＆WeChat : +86-15805909153