
Natural White Rubber Manlid Seal is used for tank manhole covers, replacing PTFE Manlid Seal and Super Tank Seal, mainly depending on customer needs and specific use conditions.
Natural White Rubber Manlid Seal is a product with excellent wear resistance, elasticity, tensile strength and elongation. However, it also has disadvantages, it ages easily in air, easily oxidizes and turns yellow, becomes sticky when heated, swells or dissolves in mineral oil or gasoline, and is alkali-resistant but not resistant to strong acids.
Our NNatural White Rubber Manlid Seal is a food-grade, high-quality product designed to meet the demanding requirements of various industries. It is made of natural white rubber and has excellent wear resistance, tear resistance and permeation resistance, making it ideal for use in harsh environments.
Due to the special nature of the material, the Natural White Rubber Manlid Seal is very soft and can be easily manipulated to adapt to any shape or size without affecting its function or performance. Due to its excellent elasticity and tensile strength, it provides a secure fit and prevents leaks or spills.

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MANUFACTURING TECHNIQUE

40+YRS OF PROFESSIONAL PRODUCTION TECHNOLOGY AND EXPERIENCE

20+YRS EXPORT EXPERIENCE, 7X24 RESPONSE

5 EXPERTS WITH 20+YRS OF EXPERIENCE

PRODUCT DIVERSITYCUSTOMIZATION AVAILABLE

ADVANCED EQUIPMENT, HIGH EFFICIENCY,
LOW COST

SHORT DELIVERY, SUFFICIENT INVENTOR





SUNPASS, founded in 1979, specializes in the production of industrial sealing and thermal insulation materials. Serving new tank container manufacturer, manhole cover manufacturer, valve manufacturer, hazardous chemicals manufacturer, depot, transport logistics companies, cleaning and maintenance service companies and trade companies at home and abroad.
-Supply to the world's top 6 tank container manufactures, such as CIMC, SINGMAS, etc
-China's first national brand SUNPASS for tank accessories
-ISO 9001 system certification, 26 patents and trademarks
-Strict internal control, professional team, 6 senior technical experts with more than 20 years experience, 87% professional customer service staff with more than 3 years experience, 8 quality inspectors with more than 5 years experience
-Member of ITCO and Tank Container Development Alliance -Over 200 workers, 18000M2 workshop -12 sets of German equipment & advanced technology
-Distributor: Netherlands, Indonesia, Thailand, India
SunPass includes Tenglong Sealing, TopSealing and Sunpass. Tenglong laid the foundation for the development of Top Sealing and SUNPASS. Top Sealing Focus on export business, and SUNPASS focus on Tank Container Spare Parts. Sunpass/TopSealing departments: Finance(3), Research and Development(8), Technical(8) , Sales(9), Manufacturing(50), Production Material Control(40) and Administrative&Human Resources Department(6).
SUNPASS has sealing products workshop, dust cap workshop, thermometer workshop, pressure gauge workshop, and so on. The products involve manlid seal, super tank seal, flanges gaskets, PTFE gaskets, O rings, FEP encapsulated manlid seal, dust caps, thermometers, pressure gauges, swing bolts, document holders, walk way, frame gauze, one way ball valve, flanges, as well as other accessories. SUNPASS products are exported to Netherlands, United States, France and all over the world.
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