Premium 99.7%Aluminum Hydroxide For High-Quality Filler Raw Material and Flame Retardants

Description

We supply full-series high whiteness aluminum hydroxide (ATH), divided into coarse powder, fine powder and superfine micro powder three categories.

All products feature high purity: standard grade Al(OH)₃ ≥99.6%, high-purity RS grade up to 99.8%. Strict control of harmful impurities ensures excellent whiteness ranging from 90% to 97%. With low moisture, low oil absorption and stable chemical properties, our ATH has complete crystal form and uniform particle size distribution.

As an eco-friendly non-halogen flame retardant, it absorbs massive heat and releases water vapor at 200-350℃. It forms a dense protective oxide layer to isolate oxygen, suppress smoke and stop flame spreading, with no toxic or corrosive gas generated during combustion. Different particle sizes are tailored for diverse production demands, serving as ideal functional filler and flame retardant for multiple industries.

Aluminum Hydroxide Series

Coarse Powder ATH

D50: 40μm ~ 100μm. Low attached water (0.1%-0.2%), high filling capacity. Finished products present delicate jade texture. Main grades: H-WF-50-SP, 60-SP, 75, 90, 100, H-WF-50RS.
Fine Powder ATH

D50: 8μm ~ 26μm. Low oil absorption, good fluidity. Combines flame retardance and insulation performance. Main grades: H-WF-8, 10, 14, 20, 25 and related modified models.
Superfine Micro Powder ATH

Includes precipitation method (D50: 1.6μm ~ 2.6μm, ultra-low conductivity) and mechanical method (D50: 3μm ~ 7μm). Optimizes surface smoothness and electrical performance of end products. Main grades: H-WF-1S, 1, 3, 5, HID-3, HID-5.

Aluminum Hydroxide Application Scenarios

1. Artificial Stone & Sanitary Ware (Coarse Powder)

Widely used for kitchen countertops, wash basins, bathtubs and artificial jade crafts. Creates natural jade-like texture, avoids bubbling during molding and enhances product hardness and appearance.

2. Electrical Composite Materials (Fine Powder)

Perfect for BMC/SMC moulding compounds, fiberglass reinforced plastics (FRP) and electrical potting compounds. Provides reliable flame retardant and insulation performance for electrical insulation parts.

3. Wire & Cable (Superfine Micro Powder)

Applied to insulation layers and outer sheaths of low and high voltage cables. Ultra-low conductivity guarantees stable insulation, while fine particle size improves surface smoothness of cables.

4. Rubber & Silicone Rubber

Acts as reinforcing and flame retardant filler for general rubber. For silicone rubber, it greatly improves tracking resistance, tear resistance and ablation resistance.

5. PVC Plastics

Effectively reduces smoke emission during PVC combustion, functioning as both flame retardant and smoke suppressant.

6. Foam Insulation Materials

Uniform particle size forms stable and even cell structure, ensuring consistent fireproof and thermal insulation performance.

7. High-Grade Paper

Used for thermal paper, art paper and special security paper. Improves paper whiteness, smoothness, opacity and ink absorption.

Product Characteristics Index

Brands	Al2O3 %	Impurities (%)			LOI %	Moisture %	Particle Size
Brands	Al2O3 %	SiO2 ≤	Fe2O3 ≤	Na2O ≤	LOI %	Moisture %	+80M %	+200M %
AH-1	≥64.5	≤0.02	≤0.02	≤0.4	34.5±0.5	≤5	≤4	>70
GAH-1	≥64.5	≤0.02	≤0.02	≤0.4	34.5±0.5	≤0.1	≤4	>70