ThreeBond 1206 One-Part RTV Silicone Sealant for Parts Requiring Post-Painting

ThreeBond 1206 is a grey, one-part, room temperature vulcanizing (RTV) modified silicone sealant. It forms an elastic body with excellent resistance to heat, cold, and chemicals after curing. It is specifically designed for sealing applications on parts that require post-assembly painting.

ThreeBond 1206 is a high-performance industrial sealing solution featuring a one-part formulation that requires no mixing, making application simple. It cures at room temperature upon exposure to atmospheric moisture. The cured sealant maintains good elasticity across a wide temperature range from -40°C to 120°C, suitable for various operating environments. With a tack-free time of approximately 5 minutes, it provides a reasonable work window for assembly and facilitates subsequent painting processes.

TB1206 possesses several specialized properties for industrial demands. Firstly, it offers excellent chemical resistance. For example, after immersion in 5W-20SL engine oil at 120°C for 10 days, its mechanical properties (e.g., tensile strength, elongation) remain robust despite some change, demonstrating its stability against lubricating oil. Secondly, it exhibits outstanding heat aging resistance. After heating at 120°C for 10 days, its elongation even increases, indicating material stability. Furthermore, it is non-corrosive to metals and is free from organotin compounds. It utilizes a dealcoholization curing system, meaning it does not produce unpleasant acidic odors during curing and offers good paintability, as the cured surface can be painted over.

its primary applications are clearly stated as "sealant for parts requiring post-painting" and "sealant for various FIPG applications." Here, "FIPG" typically stands for "Formed-In-Place Gasket." Building on this, and based on my knowledge, this product is widely used in automotive manufacturing and general industrial equipment. It is particularly suitable for sealing engine covers, transmission housings, end covers, water pumps, and oil pumps—components that require overall painting or coating after assembly and sealing. Its non-corrosive and paintable properties ensure the sealing process does not interfere with subsequent surface treatments. Moreover, its wide temperature range and oil resistance make it suitable for environments with temperature and oil presence, such as around engines and in transmission systems.

1. Who are we?

We are Shenzhen Huazhisheng New Material Technology Co., Ltd., a professional industrial adhesives and sealants supplier based in China since 2018. we serve global markets: Mainland China (60%), Southeast Asia (20%), North America (10%), and Europe (10%).

2. What products do you offer?

we supply high-performance adhesives and sealants from global leaders including: Cemedine, Dow Corning, Shin-Etsu, Araldite, and Momentive, etc.

3. How do you guarantee product quality?

Quality assurance through: Mandatory pre-production samples approval Final inspection by QC team before shipment International certifications: SGS, UL, FDA, RoHS, REACH

4. Why choose us over other suppliers?

Reliable Supply: Authentic products from top manufacturers Expert Support: Technical guidance for product selection Global Compliance: Certifications meeting target market standards Efficient Service: Customized solutions & professional support

5. What services do you provide?

Delivery: EXW/FOB/CIF Payment: USD/EUR/CNY/HKD via T/T, L/C Support: Technical consultatiozxn & logistics coordination