weatherproofing silicone sealant CB-750 is a one-component, neutral curing, universal silicone building sealant, specially designed for sealing cracks and gaps around windows, doors. It can quickly cures at room temperature by reaction with moisture in the air to form a durable, flexible silicone seal that is resistant to sunlight, rain, snow and extreme temperature.

Product features

Application standards

China standard: GB JC/T 882-2001

Technology Data

should not be use

1. as a structural sealant

2. to all materials that bleed oils, plasticizers or solvents, and green or partially sulfured gaskets or tapes, etc.

3. in totally confined space (Silicone sealant need the water in the air to cure)

4. for continuous immersion in water or below-grade applications all the year.

5. to painted surfaces, may cause seal failure as the paint cracking or paint stripping

6. to frost or wet surfaces,the surface temperature of the materials is below 4°Cor higher than 40°C

Jiangxi Fenfa Technology Co., Ltd. was founded in 2011,formerly Jinjiang Fenfa Rubber & Plastic Products Co., Ltd., which was established in 1985. Jiangxi Fenfa Technology, located at Anyi Industrial Park seated in the Home of China’s Aluminum Profile, Anyi, Jiangxi Province and also in the NanchangJiujiang Economic Zone, covers an area of 20 acres and has standard modern workshops of 50,000 square meters, and among its over 500 employees, there are 120 technical staff members with college degrees, 3 Doctors (degree) and 6 Masters (degree). It has developed into the Jiangxi’s biggest and national-famous R & D and production center, specializing in construction silicone sealant, rubber/plastic sealing strips, and door and window hardware fittings. It’s the first domestic “Onestop” supplier, providing the widest variety of construction door, window and curtail wall accessories. Moreover, it is not only officially recognized as “Designated Enterprises of Construction Door and Window Accessory” by CCMSA, China Construction Metal Structure Association, but also wins the most influential enterprise award set up for the construction door, window and curtail wall industry.

Jiangxi Fenfa Technology Co., Ltd. have  the latest and most-advanced production facilities, including the automated dual-screw siliconesealant production line, which is highly efficient and energy saving, and whose capacity is Number 1 in Asia in terms of per single unit of lines, and the Germany-made state-of-the-art fabrication and assembly line, which is used for the production of our door and window hardware that is designed and manufactured in a very reasonable and sophisticated way, and the fully automated rubber/plastic-sealing-strip production line, which is energy-saving, eco friendly and also equipped with a selected microwave/hot air vulcanization device. All those facilities help us achieve an annual production of 50,000 tons of construction silicone sealant, 5,000,000 sets of doors and windows hardware accessories, and 30,000 tons of rubber/plastic sealing strips. Our sales network has been being so widely spread that our products can be bought in all the domestic cities, and the products are exported to Southeast Asia, Europe, the United States and so on, more than 20 foreign countries and regions. 

Fenfa Technology, who has always been adhering to the spirit of enterprise, "Harmony, Honesty, Striving, and Splendidness", to our core business philosophy "Profession, Quality and Development", and to our mission, "Be Customer-oriented", will continue to focus upon door, window and curtain wall fittings, and to make you the most trusted and competitive products.