Sunpass Sealing | Premium Sealing & Thermal Insulation Solutions Since 1979

About Sunpass Sealing

Founded in 1979, Sunpass Sealing is a leading manufacturer and supplier of sealing and thermal insulation solutions based in China. With over four decades of experience, we specialize in high-grade gland packings, graphite products, PTFE materials, gaskets, and accessories for ISO tank containers and marine applications.

Our Mission

To deliver innovative, reliable, and high-performance sealing and insulation products that meet the evolving needs of industries such as oil & gas, chemical processing, power generation, marine, and HVAC.

Global Reach

We export to over 80 countries, serving clients across Europe, North America, Asia, the Middle East, and Africa. Our commitment to quality and customer satisfaction has made us a trusted partner for OEMs and industrial suppliers worldwide.

Our Products

Discover our comprehensive range of sealing and thermal insulation products engineered for durability, performance, and safety in extreme environments.

PTFE Gland Packing

Chemically inert, low friction, and excellent for corrosive environments. Ideal for pumps and valves.

High Purity | Non-Toxic | FDA Compliant

Graphite Gasket

High-temperature resistant up to 500°C in oxidizing environments. Used in flanges and heat exchangers.

Flexible | Corrosion Resistant | High Pressure

Aramid Gland Packing

High tensile strength and excellent wear resistance. Suitable for high-speed shafts and aggressive media.

Durable | Heat Resistant | Low Maintenance

Carbon Fiber Packing

Superior thermal conductivity and low thermal expansion. Ideal for high-temperature pumps and valves.

Thermally Stable | Self-Lubricating | Long Life

Expanded PTFE Sheet

Ultra-low permeability and excellent chemical resistance. Used in aggressive chemical sealing applications.

ePTFE | Zero Leaks | FDA Approved

Metal Double Jacketed Gasket

Combines metal strength with soft filler for high-pressure and high-temperature sealing.

ASME B16.20 | API 6A | Custom Sizes

Ceramic Fiber Cloth

Thermal insulation up to 1260°C. Used in furnace linings, expansion joints, and fire protection.

Non-Combustible | Lightweight | Flexible

ISO Tank Container Accessories

Complete spare parts including valves, manholes, and safety devices for ISO tanks.

DOT & ADR Compliant | OEM Replacement

View Full Product Catalog

Why Choose Sunpass Sealing?

We combine decades of expertise with cutting-edge technology to deliver sealing and insulation solutions you can trust.

40+ Years of Experience

Founded in 1979, we have built a reputation for reliability, innovation, and technical excellence across global markets.

Certified Quality

ISO 9001 certified with rigorous quality control processes ensuring every product meets international standards.

Global Exporter

Serving customers in over 80 countries with fast delivery, OEM/ODM support, and multilingual technical assistance.

Frequently Asked Questions

What materials do you use for gland packing?

We manufacture gland packings using PTFE, aramid, carbon fiber, graphite, acrylic, ramie, cotton, fiberglass, and Kynol—ensuring asbestos-free, high-performance solutions.

Are your products compliant with international standards?

Yes, our products meet ISO, API, ASME, and other global standards. We provide material certifications and test reports upon request.

Do you offer OEM/ODM services?

Absolutely. We specialize in OEM and ODM manufacturing with custom sizes, materials, and packaging to meet your specifications.

What is your delivery time?

Standard delivery is 15–20 days after order confirmation. Express shipping options are available for urgent needs.

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Sunpass Sealing – Trusted Sealing & Thermal Insulation Solutions Since 1979