The HMMAT 100 Series is our OEM bulk-supply line of untreated synthetic amorphous silica matting agents, engineered for downstream coating brands, contract manufacturers, and private-label customers who need full-container quantities with audit-traceable batch consistency. Identical in chemistry to the GMATT 100 retail line, HMMAT 100 ships from our Shanghai and Mingguang plants in 25 MT FCL lots with private-label packaging available on request.
Key Features
- Batch-to-Batch Consistency: Statistical process control across all 25 MT FCL lots — every drum traceable to a single mother-batch COA.
- Single-Source Supply: One ISO 9001 plant, one quality system, one COA template — no blending from multiple sub-suppliers.
- Absolute Transparency: 100% wax-free chemistry guarantees zero hazing in deep-color clear coats.
- Flawless Recoatability: Lack of organic surface modification ensures perfect inter-coat adhesion in multi-layer systems.
OEM Capabilities
- Private-Label Packaging: Your brand on the bag — full sleeve, side-print, or co-brand options
- Custom MOQ: 1 FCL (20 MT) start, scaling to multi-FCL contract supply
- Audit-Ready: ISO 9001 + 21 CFR 175.300 + REACH dossier on file
- Just-In-Time Program: Vendor-managed inventory and call-off contracts for downstream OEMs
- Multi-Port Shipping: Shanghai, Ningbo, and Tianjin FOB options
Applications
Used by leading OEMs in:
- Coil Coatings & High-temperature Baking Enamels
- Leather Finishes & Thin-film Plastics
- Overprint Varnishes (OPV)
- Premium Wood Coatings (requiring extreme clarity)
HMMAT 100 Series: Grade Selector
The HMMAT 100 Series offers the widest particle size spectrum (3.0 µm to 18.0 µm). Match the grade to your downstream Dry Film Thickness (DFT) target.
| Grade | Spec | Recommended DFT | Notes |
|---|---|---|---|
| HMMAT 130 / 135 | d50 3.0 – 4.0 µm | < 10 µm (Ultra-thin) | Extremely fine grades for leather finishes and OPV. Provides a highly transparent, silky touch. (130: High Oil Abs / 135: High PV). |
| HMMAT 140 | d50 4.0 – 4.5 µm | 10 – 15 µm (Very Thin) | Perfect for thin-film clear coats and plastic coatings. Delivers high clarity without compromising film smoothness. |
| HMMAT 155 | d50 5.5 – 6.3 µm | 15 – 25 µm (Medium) | The versatile standard. Excellent for general industrial and coil coatings. Available in standard and high Pore Volume (PV) options. |
| HMMAT 114 | d50 14.0 – 18.0 µm | > 40 µm (Extra Thick) | Extra-large particles designed for heavy-duty industrial coatings, textured finishes, and high-build primers. |
General Properties
Typical properties for the untreated HMMAT 100 Series. Produced under strict ISO 9001 conditions to ensure high SiO₂ purity and consistent matting performance lot-after-lot.
| Parameter | Typical Value | Unit |
|---|---|---|
| Pore Volume | 1.2 – 1.8 | ml/g |
| Oil Absorption | 220 – 370 | g/100g |
| Loss on Drying (2h @ 105°C) | ≤ 5.0 | % |
| Loss on Ignition (2h @ 1000°C) | ≤ 6.0 | % |
| pH Value (5% aqueous) | 6.0 – 8.0 | – |
| SiO₂ Content (dry basis) | ≥ 99.0 | % |
| Surface Treatment | None (Untreated) | – |
- Typical values only. Not for sales specifications. Refer to COA for batch data.
OEM Procurement Workflow
- Spec & Volume Brief: Submit target d50, oil absorption window, and annual or per-FCL volume forecast.
- Sample Match: 1 kg lab match shipped within 5 days; downstream lab QC sign-off triggers contract drafting.
- First FCL Contract: 25 MT pilot shipment under your private label, full COA chain, ISO + REACH dossier delivered.
- Repeat Replenishment: Scheduled call-off (monthly/quarterly) or VMI program with locked-in pricing.
Cross-reference
Frequently Asked Questions
Common questions from OEM procurement and private-label customers.
+Can HMMAT 100 be private-labeled with our brand on the packaging?
Yes. We offer full private-label packaging in 20 kg PE-lined paper bags, 500 kg bulk bags, or custom drums. Your logo, grade name, and regulatory text replace ours on the sleeve — only the country-of-origin label is required by Chinese export regulation.
+What is the minimum FCL order and lead time?
Minimum is 1 × 20-foot FCL (~20 MT untreated silica, low-density loading). Lead time is 25-35 days from contract signing for a private-label first run; 15-20 days for repeat orders under an active contract.
+Do you support audits from our downstream brand customers?
Yes. Our Shanghai and Mingguang plants are ISO 9001 certified and have hosted audits from coatings majors across Europe, North America, and Southeast Asia. We provide REACH registration evidence, 21 CFR 175.300 food-contact dossiers, and full process-flow documentation under NDA.
+How does batch-to-batch consistency compare to retail-grade silica?
Every HMMAT FCL ships with a mother-batch COA covering pore volume, oil absorption, loss on drying, and SiO₂ purity. Multi-FCL contracts lock the d50 envelope to a tighter window than retail GMATT (typically ±0.2 µm vs ±0.5 µm) to support downstream automated dispersion lines.