Product Description
Kootai 9239 RTV Silicone is a one-component thermal adhesive designed for effective electronic encapsulation and bonding. It cures at room temperature by reacting with moisture in the air, forming a durable, elastic silicone layer. With a high thermal conductivity (0.5 W/mK), electrical insulation (14 kV/mm), and flame retardance meeting UL94 standards, 9239 delivers a robust solution for electronics requiring heat dissipation and environmental protection. It adheres well to metals, plastics, ceramics, and various substrates, making it versatile for industrial applications. The product complies with EU RoHS, REACH, and UL directives, and is halogen- and sulfur-free, ensuring regulatory compliance.
Industrial Features
- Bonding and thermal coupling of heat sinks in electronic appliances
- - Encapsulation and protection of components on PCBA boards
- - Gap filling and reinforcement of electronic assemblies
- - Thermal interface material (TIM) for LED modules and heat-sensitive circuits
- - Waterproof sealing in harsh environments
Features
- High thermal conductivity and excellent flame resistance
- - Non-corrosive to metals and sensitive components
- - Superior adhesion across various materials including plastics, metals, and ceramics
- - Easy to apply and self-curing at room temperature
- - Meets global environmental standards (RoHS, REACH, UL certified)
FAQ
Q1: How long does 9239 RTV Silicone take to cure?
A: Surface curing begins within minutes, and deep curing occurs within 24 hours at 25C and 50% humidity. Full mechanical properties are reached after 7 days.
Q2: Can it be used on plastic surfaces like PP or PE?
A: Yes, but such surfaces require special pretreatment for effective adhesion.
Q3: Is it electrically insulating?
A: Yes, with a dielectric strength of 14 kV/mm and a volume resistivity 310 cm.
Q4: What is the shelf life?
A: 6 months when stored sealed in a cool, dry place (5C28C), though optimal performance is achieved within 4 months.
Q5: Is 9239 considered hazardous for transport?
A: No, it's classified as non-dangerous goods and can be stored and transported as general chemicals.
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