High-Temperature Vacuum Sealing Silicone Grease YBS-290 Manufacturer

YBS-290 silicone grease is made from high-performance silicone oil and high-purity inorganic thickener , and is refined with a variety of additives and structure improvers.






  • Excellent high-temperature sealing performance: Excellent sealing performance and high and low temperature performance, operating temperature -50~180 degrees Celsius.

    High viscosity base oil: The excellent oil film composition of the base oil endows the grease with superior anti-friction and anti-wear properties. It also boasts excellent high-temperature performance and adhesion, a low coefficient of friction, and strong load-bearing capacity.

    Excellent plastic compatibility: It has good insulation properties, strong material adaptability, and is compatible with most plastics and elastomers.

  • Excellent corrosion protection performance: Excellent rust and corrosion resistance, effectively reducing the maintenance cost of lubricated parts by 60%; copper-colored, stain-free, resistant to acid and alkali corrosion and does not corrode metals, and resistant to hot and cold water.

    Enhanced extreme pressure and anti-wear properties: Excellent load-bearing capacity and lubrication performance, low friction coefficient, reducing wear of lubricated parts by 80% under high temperature and high load conditions. It is wear-resistant, prevents shaft seizing, and prevents hysteresis even under high surface pressure.

Application And Packaging Specifications

Sealing and lubrication of low-speed sliding parts such as various valves, cylinders, plugs, and joints

Lubrication and sealing between metal-to-metal and metal-to-plastic moving parts

Suitable for lubrication and sealing of ground glass joints and glass pistons in vacuum systems with a high vacuum level of 7.0×10-7KPa.

Lubrication and sealing of lubrication points in various toys, aquariums, kitchen and bathroom appliances, and sanitary ware in aquatic environments .

Lubrication and sealing of lubrication points in optical equipment and instruments/meters

Suitable for sealing and lubricating low-speed sliding parts of glass, ceramic, or metal valves, rotary valves, solenoid valves, etc., that come into contact with chemicals.

Suitable for use in contact with chemicals and for lubrication and corrosion protection of glass, ceramics, or metals.

Applicable to the damping of potentiometers, and the insulation and sealing of electrical appliances.

Filling medium for liquid couplings, automotive brake pumps, O-ring seals and lubrication.

This product is available in 500g sizes. Packaging: 1kg tin cans, 18kg plastic drums, and 200kg tin drums.

black blue and yellow textile
black blue and yellow textile

Operating Precautions

■ Avoid over-application, as excess grease may cause contamination or increased resistance. This product is designed for sealing and low-speed lubrication and is not recommended for high-speed or heavy-load applications.
■ Ensure compatibility with specific materials before use. Keep away from contaminants and do not mix with other lubricants. For vacuum or precision applications, apply a minimal amount to prevent contamination.

How To Use

■ Apply a thin, uniform layer of silicone grease to clean and dry surfaces. Remove dust, oil, and moisture before application to ensure proper adhesion and sealing performance. Assemble components immediately after application.

Contact Us

Contacts: Sales Department

E-mail: info@ybslube.com

Tel: +86-13192083114

WhatsApp: +86-18934578611

ADD: Building 15, No. 142, Jinghai West Road, Chang'an Town, Dongguan City, Guangdong Province, China

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