Question 1

Why is anti-caking performance critical for heavy DFT industrial coating matting agents?

Accepted Answer

Heavy DFT industrial coatings typically run at high silica loadings (5–15 wt%) to achieve target gloss reduction in films 40–100 µm thick. At these loadings, conventional silica can form hard cakes during storage or agglomerate in the mixing vessel, causing dosing inconsistency and gloss streaking. HMMAT 300 Series features superior anti-caking modification that maintains free-flow handling and ensures homogeneous dispersion even at high pigment volume concentrations.

Question 2

How does HMMAT 300 perform in solvent-borne epoxy anti-corrosion primers?

Accepted Answer

HMMAT 300 Series is specifically modified to disperse cleanly in high-polarity epoxy systems with amine hardeners. The surface treatment is stable against amine attack, maintaining particle integrity and matting efficiency throughout the full pot life. Gloss control in epoxy primers at 60–100 µm DFT is reproducible within ±2 GU batch to batch.

Question 3

What gloss levels can be achieved with HMMAT 300 at typical heavy DFT loadings?

Accepted Answer

At 60° gloss measurement, HMMAT 300 Series achieves 10–30 GU at loadings of 5–10 wt% in a standard 60 µm DFT epoxy or polyurethane industrial topcoat. For deep matte finishes below 10 GU, loadings of 8–15 wt% are typical depending on the substrate and application method. The anti-caking modification ensures these high loadings disperse without agglomerate streaking.

Question 4

Is HMMAT 300 suitable for maintenance coatings applied by airless spray in the field?

Accepted Answer

Yes. HMMAT 300 is designed for robust performance under variable field application conditions. Its free-flowing powder form mixes readily in single-drum batch preparation, and the anti-caking modification tolerates the temperature and humidity fluctuations typical of on-site maintenance work. Airless spray atomisation is not adversely affected at standard application viscosities.

Question 5

What certifications and test documentation accompany HMMAT 300 FCL shipments?

Accepted Answer

Every HMMAT 300 FCL shipment includes a batch-specific Certificate of Analysis covering particle size, oil absorption, pH, moisture, and BET surface area; an SDS/MSDS; a REACH SVHC compliance declaration; and an ISO 9001 quality statement. Third-party test reports from SGS or Intertek can be arranged for first-shipment qualification audits.

گرید	d50 / عملیات	محدوده DFT	تناسب کاربردی
HMMAT 300 (استاندارد)	6–8 µm / اصلاح ویژه	40–80 µm	آستر اپوکسی، رویه سازه فولادی
HMMAT 300 (درشت)	9–12 µm / اصلاح ویژه	60–100 µm	نگهداری سنگین، رویه دریایی
HMMAT 255	5.5 µm / واکس	20–40 µm	رویه صنعتی نازک با نیاز شفافیت
HMMAT 270	7 µm / واکس	30–50 µm	پوشش‌های صنعتی ضخامت متوسط

HMMAT برای پوشش‌های صنعتی.

ضد کلوخه‌شدن برتر در بارگذاری‌های بالا

عملکرد مقاوم در سیستم‌های اپوکسی و پلی‌اورتان

کنترل ثابت براقیت در DFT 40–100 µm

تامین FCL برای خطوط تولید مداوم

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