The HMMAT 600 Series is our OEM bulk-supply line of high-efficiency precipitated silica matting agents for downstream general-industrial and coil-coating brands. Identical chemistry to the GMATT 600 retail line — the same 320–360 g/100g oil absorption that delivers powerful gloss reduction at minimal dosage — but supplied exclusively under contract with 25 MT FCL minimums, ideal for downstream OEMs running cost-sensitive high-volume programs.
Key Features
- Cost-Per-Liter Optimized: Extreme oil absorption (320-360 g/100g) means downstream formulators use less material per liter of coating — a critical OEM-economics advantage.
- Contract-Grade Anti-Settling: Organic wax surface treatment prevents hard caking through extended downstream warehouse holding periods.
- Audit-Traceable Precipitation Process: Every FCL tied to a single mother-batch from our precipitation reactor — single-source consistency for downstream brand customers.
- Smooth Surface Finish: Tightly controlled particle size distribution guarantees a refined silky touch in the downstream brand's final film.
OEM Capabilities
- Private-Label Packaging: Your brand on 20 kg bags or 500 kg bulk bags
- Custom MOQ: 1 FCL (20 MT) entry to multi-FCL annual contracts (300+ MT/year typical for 600-series volume customers)
- Audit-Ready: ISO 9001 + REACH + 21 CFR 175.300 dossier
- Just-In-Time Program: Monthly call-off scheduling with locked annual pricing
- Multi-Port Shipping: Shanghai, Ningbo, Tianjin FOB; CIF terms negotiable
Applications
Trusted by high-volume downstream OEMs across:
- General Industrial Finishes
- Coil Coatings & Baking Enamels
- Solvent-based Wood Coatings (Clear & Pigmented)
- Leather Finishes
HMMAT 600 Series: Grade Selector
Match the grade to your downstream customer's Dry Film Thickness (DFT) target.
| Grade | Spec | Recommended DFT | Notes |
|---|---|---|---|
| HMMAT P640 | d50 4.0 – 4.5 µm | < 15 µm (Thin Film) | Ultra-fine particles for thin-film clear coats, leather finishes, and thin plastics coatings where high transparency and smooth feel are mandatory. |
| HMMAT P650 | d50 6.5 – 7.0 µm | 15 – 25 µm (Medium Film) | The versatile high-volume standard. Excellent for general industrial finishes, coil coatings, and wood topcoats. Maximum matting efficiency per kg. |
General Properties
Typical properties for the HMMAT 600 Series. Backed by advanced precipitation technology with FCL-level statistical batch control.
| Parameter | Typical Value | Unit |
|---|---|---|
| Oil Absorption | 320 – 360 | g/100g |
| Loss on Drying (2h @ 105°C) | ≤ 5.0 | % |
| Loss on Ignition (2h @ 1000°C) | ≤ 10.0 | % |
| pH Value (5% aqueous) | 6.0 – 8.0 | – |
| SiO₂ Content (dry basis) | ≥ 98.0 | % |
| Surface Treatment | Organic Wax | – |
- Typical values only. Not for sales specifications. Refer to COA for batch data.
OEM Procurement Workflow
- Spec & Volume Brief: Submit target d50, downstream system (solvent / coil / industrial), and annual or per-FCL volume forecast.
- Sample Match: 1 kg lab match shipped within 5 days; downstream QC sign-off triggers contract drafting.
- First FCL Contract: 25 MT pilot shipment under your private label, full COA chain, ISO + REACH + 21 CFR dossier delivered.
- Repeat Replenishment: Scheduled call-off (monthly typical for high-volume 600-series) with locked-in annual pricing.
Cross-reference
Frequently Asked Questions
Common questions from OEM procurement teams running high-volume 600-series programs.
+Can HMMAT 600 be private-labeled and shipped in bulk bags?
Yes. The HMMAT 600 Series is our highest-volume OEM line. Private-label packaging is standard, and 500 kg bulk bags (FIBC) are available for downstream brand customers who run automated dispersion lines. Your brand replaces ours on the bag.
+What is the minimum FCL order and how does pricing scale with volume?
Minimum is 1 × 20-foot FCL (~20 MT). Pricing tiers step at 5-FCL, 10-FCL, and 20-FCL annual commitments. Customers running 300+ MT/year typically secure 20-FCL annual contracts with locked pricing.
+Do you support audits from our downstream coil-coating brand customers (automotive, appliance)?
Yes. Coil-coating major brands (especially serving automotive and appliance OEMs) routinely audit our Shanghai precipitation plant. We provide full process documentation, in-process QC records, and host downstream brand audits under NDA.
+Lead time for first private-label run vs repeat orders?
First private-label run: 25-35 days including artwork approval. Repeat orders under an active contract: 15-20 days from call-off PO. VMI program available for downstream OEMs running 300+ MT/year.