Harbour Materials Asia
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 Wt:
478.70
Melting Pt:
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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