Metal Bonding Powder Coating
We are a manufacturer based in China, specializing in high-quality Metal Bonding Powder Coating for industrial clients worldwide. Technical support and custom formulation available.
Category：powder Coating | Brand：MT
Introduction
Selecting the right powder has always been a challenge for buyers. To make this easier, we name our powders by industry and match raw materials and process adjustments to each sector’s requirements. The result is a coating that is easy to apply, consistent in appearance, and cost-effective for production.
Product Overview
| Product Name | Metal bonding powder |
| Applicable Industries | Building materials, aluminum art, and metal-finishing lines previously using liquid metal paints |
| Specific Gravity | 1.1–1.5 g/cm³ |
Product Features
High Metal ContentCloses to liquid paint effect, rich metallic look.Good Binding & SprayabilityEasy electrostatic application, consistent film color.Alkali, Weather & Corrosion ResistanceDurable in outdoor and alkaline exposure.
Physical Properties
| Test Item | Standard | Index |
|---|---|---|
| Bending | ASTM D522 | Passed — curvature diameter 5 mm |
| GB/T 1731 | Passed — curvature diameter 2 mm | |
| Dry Adhesion | ASTM D3359 | Passed — 5B |
| ISO 2409 | Passed — Grade 0 | |
| GB/T 9286 | Passed — Grade 0 | |
| Cupping | ISO 1520 | 5 mm — no cracking or flaking |
| GB/T 9753 | 5 mm — no cracking or flaking | |
| Impact Resistance (Forward) | ASTM D2794 | ≥ 50 kg·cm |
| GB/T 1732 | 50 kg·cm | |
| Pencil Hardness | ASTM D3363 | ≥ H |
| GB/T 6739 | ≥ H |
Application Guide
Curing200°C / 12 min or 180°C / 15 min (workpiece surface temperature).PretreatmentDegrease all metal substrates. Steel: zinc or iron phosphating. Aluminum: chrome treatment to improve corrosion resistance.Spraying ParametersManual or automatic; automatic recommended for consistency. Atomizing and primary air ~0.5 bar; voltage 40–90 kV; overspray recoverable.Damage RepairGrind the damaged area, blow clean, and recoat at reduced voltage.
Industrial Pain Points We Address
Metallic / bonded powder lines face specific issues. Here is how our system responds:
Pigment Floating / Fading Metallic EffectPain: Aluminum or bronze pigments float in the film, causing uneven shine.We solve: Bonded process locks pigment to base powder for consistent metallic look.Spray Gun CloggingPain: Free pigments bridge at the nozzle, causing frequent downtime.We solve: Bonded granules flow smoothly through standard electrostatic guns.Reclaimed Powder Color ShiftPain: Recycled powder changes shade after mixing with virgin powder.We solve: Good compatibility between reclaimed and virgin batches.Fingerprints & Oxidation on MetallicsPain: Hands leave marks; metallic layer tarnishes over time.We solve: Bonded film reduces pigment migration; topcoat option available.Outdoor Weathering FailurePain: Chalking or fading on building facades and aluminum art.We solve: Weather-resistant polyester resin system for outdoor service.Switching from Liquid Paint LinesPain: Existing liquid metal paint users unsure about powder conversion.We solve: Process guidance for pretreatment, spray, and curing parameters.
Storage & Safety
Storage: Keep below 30°C in a dry, ventilated room, away from direct sunlight. Shelf life 12 months; re-test after expiry.
Safety: Do not eat, drink, or smoke while spraying; avoid dust inhalation; wear a suitable respirator. Refer to the product SDS for details.
The data above is based on current knowledge and laboratory conditions. Users should verify suitability for their specific application, read the SDS and TDS before use, and ensure compliance with local regulations. Product specifications may be updated as experience accumulates.
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