Product Overview

IOTA 6105 is a colorless to pale-yellow solid pure silicone resin supplied as powder or granules. Its highlight is a high glass transition temperature — softening point 85±5°C — meaning the cured film resists softening and tackiness at elevated temperatures for superior heat resistance. For applications requiring higher flexibility and bend resistance, choose IOTA 6106, which improves flexibility on the basis of 6105.

Key Features 

• Excellent high-temperature performance: clear-varnish weight loss ≤5% at 350°C for 4 hours.

• High glass transition temperature: high Tg with softening point 85±5°C, giving the film better hardness and dimensional stability at high temperatures.

• Superior electrical insulation: outstanding arc and corona resistance.

• Hydrophobic and moisture-proof coating performance.

• Outstanding durability: excellent weathering, ozone, corrosion, and chemical resistance, plus flame retardancy and high mechanical strength.

• Eco-friendly solid form: colorless/pale-yellow powder or granules, solid content ≥99% (180°C, 1h), enabling low-VOC powder coating processes.

Technical Data Sheet at a Glance

IOTA 6105 vs. IOTA 6106 Selection Guide

Selection tip: choose 6105 for maximum heat resistance and hardness; choose 6106 where coatings must endure bending, vibration, or thermal deformation.

Main Applications

IOTA 6105 can be used as a heat-resistant powder coating or liquid resin, and can be blended with epoxy or polyester powder resins. Typical uses include:

1. Anti-corrosion coatings for BBQ grills, mufflers, and exhaust pipes;

1. High-temperature equipment coatings, anti-corrosion coatings, and powder coatings;

1. Insulation materials, weather-resistant coatings, and inks;

1. Spacecraft and military equipment requiring high reliability.

Frequently Asked Questions (FAQ)

Q: What is the difference between IOTA 6105 and IOTA 6106? A: Both are eco-friendly solid pure silicone resins with the same baseline performance. 6105 has a higher Tg and softening point (85±5°C) for superior heat resistance; 6106 improves flexibility and phenyl content over 6105 (softening point 70±5°C), making it ideal for heat-resistant products that must withstand bending.

Q: What is the maximum service temperature of IOTA 6105? A: The clear varnish shows ≤5% weight loss at 350°C for 4 hours, meeting most high-temperature coating requirements.

Q: Is IOTA 6105 eco-friendly? A: Yes. It is a solid (powder/granule) resin with ≥99% solid content, enabling low-VOC powder coating processes.

Q: Can IOTA 6105 be blended with other resins? A: Yes. It can be blended with epoxy, polyester, and other powder resins.

Q: Is the gel time adjustable? A: Yes. The standard range is 10–60 minutes at 200°C, and customization is available.