In the field of material protection, a coating that combines exceptional hydrophobicity with broad applicability stands out as a top-tier scientific achievement. The organopolysilazane IOTA 9283, developed by Anhui IOTA Silicone Oil Co., Ltd., has earned its reputation as a "versatile all-rounder" in hydrophobic coatings, thanks to its unique properties.

Unique Molecular Structure & Curing Mechanism

IOTA 9283 is a liquid polysilazane containing silicon-nitrogen (Si-N) bonds, with functional groups primarily consisting of methyl and fluorine-modified units. Designed for room-temperature-curing hydrophobic coatings, it features Si-NH-Si bonds that react via hydrolysis and oxidation at ambient conditions, readily bonding with substrate -OH groups for strong adhesion. The addition of a catalyst further accelerates the reaction between Si-H and Si-NH-Si, forming a 3D cross-linked network that enhances mechanical strength. Notably, the incorporation of fluorine groups ensures superb hydrophobicity, while the coating remains colorless and transparent, with a light transmittance >95%.

Outstanding Product Features

Low viscosity & excellent adhesion – Suitable for application via multiple methods on diverse substrates, including metals, alloys, glass, paint films, and plastics.

Exceptional hydrophobicity – Water contact angle of 110°–120°, maintaining ~109° even after 1 hour at 350°C, demonstrating remarkable thermal stability.

Fast curing – Surface-dries in 10–15 min at room temperature; full curing recommended after 24+ hours.

For accelerated curing: 60–200°C (e.g., 2–5 hrs at 120–150°C post surface drying).

High hardness – 4H after 12 hrs (RT cure), 6H after 24 hrs, with strong adhesion to metals, ceramics, etc.

Superior chemical shielding – Excellent oxidation & corrosion resistance, plus easy-to-clean properties.

Wide-Ranging Applications

True to its "all-rounder" title, IOTA 9283 excels in multiple fields:

Coatings & adhesives

Flame-retardant composites

Polymer-based composites

Glass & mold applications

Easy-clean surfaces requiring hydrophobicity & low surface tension

Industry-Specific Use

Automotive – Protects headlights, car bodies from water stains and dirt, enhancing weather resistance & longevity.

Electronics – Shields components from moisture, improving device stability & reliability.

Aerospace – Provides durable, hydrophobic protection for critical surfaces.

With its unmatched versatility, durability, and ease of application, IOTA 9283 is setting a new benchmark for high-performance hydrophobic coatings across industries.