Reflective powder

When sourcing reflective powder, the most critical factor is the Refractive Index (RI). For high-visibility applications, look for an RI of 1.9 to 2.2. Additionally, consider the particle size (mesh); finer powders (e.g., 400-600 mesh) provide a smoother finish for inks, while coarser powders offer higher retro-reflectivity. Ensure the roundness rate is above 90% to guarantee uniform light reflection.

Reflective powders are categorized by their coating. Aluminum-coated (gray) powder offers the highest reflectivity and is ideal for safety vests and road markings. Clear/White powder is better for fashion textiles or colorful coatings where the base color needs to show through. For water-based paints, you must specify surface-treated waterproof reflective powder to prevent oxidation and clumping.

For export to the US and EU, products should comply with EN ISO 20471 (High-visibility clothing) and ANSI/ISEA 107. Since it is a chemical/mineral product, a valid MSDS (Material Safety Data Sheet) is mandatory. Ensure the powder is heavy-metal free and meets REACH or RoHS standards if it is being used in consumer electronics or children's toys.

Request a retro-reflectivity test report (measured in cd/lx/m²). You should also ask for a sample for a 'flashlight test'—apply the powder to a surface and view it at a small angle to the light source. Check for color consistency across batches; high-quality suppliers on Made-in-China.com will provide consistent spherical glass bead geometry to avoid 'dead spots' in reflection.

Reflective powder is often classified as a 'sensitive cargo' (fine powder) by airlines and shipping lines. To avoid customs delays, ensure the supplier provides a 'Certificate for Safe Transport of Chemical Goods'. Improper packaging can lead to moisture absorption, which ruins the powder's flowability; insist on vacuum-sealed double-layer PE bags inside rigid fiber drums.

Pricing for reflective powder is highly sensitive to the Refractive Index and coating type. For bulk orders exceeding 500kg, you can typically negotiate a 15-20% discount. Ask for tiered pricing based on volume. If you are a first-time buyer, look for Audited Suppliers who offer a lower MOQ (e.g., 1-5kg) for testing before committing to a full container load.

Always use Secured Trading Services provided by Made-in-China.com to protect your payment. Do not transfer funds to private bank accounts. Ensure the Proforma Invoice (PI) clearly states the Refractive Index, color, and particle size to provide legal recourse in case the delivered goods do not match the agreed specifications.

For shipments to Europe or North America, ensure the HS Code used is 70182000 (Glass microspheres). Be aware of anti-dumping duties that may apply to certain glass products in specific regions. For sea freight, ensure the pallets are fumigated and the cargo is stored away from heat sources to prevent the coating from degrading during transit.