Meeting the demanding requirements of high-temperature applications while adhering to stringent environmental standards is a significant challenge. IOTA 68604 Water-Based High Temperature Resistant Silicone Resin Emulsion rises to this challenge, offering an exceptional combination of performance, safety, and versatility.

Engineered for Performance and Sustainability
Formulated as a milky white, non-ionic emulsion with a pH of 8-9, IOTA 68604 boasts a solid content of 45-50%. Its water-based nature is its cornerstone advantage: featuring low odor, excellent water dilutability, and freedom from toluene and xylene, it readily complies with environmental regulations. Beyond its eco-profile, it delivers outstanding stability – resisting acid, alkali, heat storage, centrifugation, and dilution stress. The emulsion forms films rapidly at room temperature with excellent wettability and leveling.

Unmatched High-Temperature Resistance
The core strength of IOTA 68604 lies in its ability to form coatings resilient against extreme temperatures ranging from 200°C to 1000°C. When combined with suitable heat-stable pigments, fillers, or metal powders, it becomes the ideal base for formulating such coatings. Once fully cured under optimal conditions (220°C for 30 minutes or 280°C for 10 minutes), the resulting film exhibits exceptional thermal stability, weather resistance, and salt spray resistance. Furthermore, the cured film demonstrates impressive hardness, toughness, wear and impact resistance, and chemical durability.

Broad Application Spectrum
This versatility makes IOTA 68604 indispensable across numerous demanding sectors:

1. High-Temperature Components: Essential for glass fiber mica tape, mica boards, sleeves, household appliances (cookers, ovens, fireplaces), industrial equipment (kilns, flues, chimneys), and automotive parts (exhausts, engine components).

2. Protective Coatings: Ideal for weather-resistant and anti-corrosion coatings on outdoor metal structures.

3. Specialty Functional Coatings: Serves as the optimal base for formulating water-based high-temperature insulation coatings, fire retardants, heavy-duty anti-corrosion systems, thermal conductive coatings, and electrical insulating coatings, including applications like non-stick cookware linings and electronics insulation.

Optimized Processing & Critical Handling
Processing involves direct high-speed dispersion (1000-1500 rpm for 20-30 mins) of all components, including pre-prepared water-based color pastes, followed by 200-mesh filtration. Deionized water adjusts viscosity and solid content. The pigment-to-base ratio significantly impacts final properties: higher ratios yield lower gloss but superior heat resistance (ideal for primers), while lower ratios provide higher gloss, enhanced salt spray resistance, and better wear resistance (suited for topcoats).

Key Application Notes:

• Stirring: Sedimentation occurs over time; thorough stirring is mandatory before use.

• Film Thickness: Control dry film thickness per coat between 35-50 µm to avoid cracking.

• Curing: Critical for performance. Allow room-temperature surface drying or gentle pre-drying (<80°C) before final high-temperature curing. Never expose wet films directly to high heat (risk of blistering). Follow the recommended curing profiles rigorously (200-280°C for 10-60 mins, ideally 220°C/30min or 280°C/10min).

• Re-coating: Ensure previous coats are fully cured.

• Storage: Seal containers tightly after use to prevent skinning/thickening; clean tools promptly with water.

IOTA 68604 represents a significant advancement, providing a robust, environmentally conscious solution for protecting surfaces against the most extreme thermal environments, backed by excellent mechanical and chemical resistance properties.