Harbour Materials Asia

HPS (Hexaphenylsilanol)

Detailed Product Information

HPS (Hexaphenylsilanol)

HPS (Hexaphenylsilanol)

HPS is a hydrophobic additive used in gypsum and cementitious systems, improving water resistance and surface wearability.

Formula: C₃₆H₃₀O₆Si

CAS: 75750-54-4

Min. Order: 100KG

Molecular Weight: 478.70

Melting Point: 200–205°C

Appearance: White crystalline powder.

Application: Gypsum Plasters: Enhances water repellency and reduces efflorescence.

Wall Putties: Improves surface uniformity and crack resistance.

Packaging: 20kg or 25kg plastic or paper bags.

Storage: Avoid moisture and direct sunlight.

Transportation: Handle carefully to avoid caking.

Summary: HPS provides excellent hydrophobic performance, extending durability of dry‑mix products.

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