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Your Application, Our Know-how

One-stop solutions to your sealing application. ISO9001:2015 certified manufacturer of O-rings, X-rings, gaskets, and custom molded rubber parts.

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About Best Seal

Xiamen Best Seal technical teams have served the sealing needs of thousands of OEM and aftermarket users. We have designed, manufactured, and supplied a wide variety of rubber, plastic, and metal items for diverse industrial applications.

Seal production is not just our work — it's our passion. We provide a one-stop service to your sealing solutions. Tell us what you want to seal, and let us assist with your current production or design requirements.

20+
Years of Experience
10+
Specialists in Team
Best Seal Factory
ISO9001:2015
Certified Manufacturer

Why Choose Best Seal

Trust over 20 years of experience and passion in precision sealing solutions.

100% Inspection

Every product undergoes 100% first article and production inspection to ensure consistent quality.

Certified Quality

ISO9001:2015 certified with materials approved by UL, FDA, NSF, WRAS, ROHS, and REACH.

Technical Support

Our expert team provides technical guidance for material selection, design, and application challenges.

Fast Lead Time

Prototype in ~2 weeks, production tooling in ~10 days, and mass production in 2–3 weeks after approval.

Global Shipping

Reliable logistics network with export experience to North America, Europe, and Asia.

Tooling Maintenance

We maintain all tooling and replace as needed to ensure long-term production stability.

Our Products

Thousands of tools in stock for AS568 O-rings and X-rings. Custom solutions for every sealing need.

Rubber O-ring

Rubber O-ring

Standard and custom sizes in NBR, EPDM, FKM, Silicone, and more. AS568 compliant.

NBR EPDM FKM
Rubber X-ring

Rubber X-ring

Improved sealing performance with reduced friction. Ideal for dynamic applications.

Low Friction Dynamic Use
Rubber Gasket

Rubber Gasket

Custom die-cut or molded gaskets for flanges, enclosures, and housings.

Custom Shapes Die-Cut
Rubber Molded Part

Rubber Molded Part

Precision molded components for automotive, medical, and industrial use.

Precision OEM
PTFE Part

PTFE Part

High-performance PTFE seals, washers, and bushings with excellent chemical resistance.

Chemical Resistant Non-stick
Rubber Hose

Rubber Hose

Flexible hoses for fluid transfer in industrial, automotive, and HVAC systems.

Flexible High Pressure
Extruded Profile

Extruded Profile

Custom rubber seals, strips, and weatherproofing profiles for doors and windows.

Weatherproof Door/Window
Silicone Rubber Cap

Silicone Rubber Cap

Protective caps and plugs in various colors and hardness levels.

Custom Colors Protective
View All 912+ Products

Quality & Services

Qualification and approvals are the backbone of ensuring product performance and limiting product liability.

  • Material Certifications: UL, FDA, NSF, KTW, W270, WRAS, ACS, AS4020, ROHS, REACH
  • Standards: ASTM D2000, ISO3302, RMA
  • Inspection: 100% first article and production inspection with KANBAN tracking
  • Testing: Pre-production samples, material data sheets, third-party inspections (SGS, TUV, BV)

Available Materials

NBR, EPDM, SILICONE, FKM, NEOPRENE(CR), NR, IIR, SBR, ACM, AEM, Fluorosilicone(FVMQ), FFKM, Liquid Silicone, Sponge

ISO9001:2015

Certified Quality Management System

Lab Testing

Material and performance validation

Custom Tooling

Design and maintenance included

Global Support

Export-ready packaging and logistics

Frequently Asked Questions

We accept T/T 50% deposit and 50% balance before delivery or L/C at sight. Western Union and PayPal are also accepted.

Average lead time for prototype/first article is around 2 weeks. If tooling is involved, lead time for production tooling is around 10 days. Average production time after sample approval is 2–3 weeks.

All goods are packed in PP bags and then carton boxes. Special packing methods can be accepted when needed.

We are ISO9001:2015 certified. Our rubber compounds are approved by UL, FDA, NSF, KTW, W270, WRAS, ACS, AS4020, EN681, EN549, ROHS, and REACH.

We provide pre-production samples, measurement reports, material data sheets, and accept third-party inspections (SGS, TUV, INTERTEK, BV).

NBR, EPDM, SILICONE, FKM, NEOPRENE(CR), NR, IIR, SBR, ACM, AEM, Fluorosilicone(FVMQ), FFKM, Liquid Silicone, Sponge, etc.

Get in Touch

Have questions about our sealing solutions? Contact our team for expert support.

Phone
+86-592-5782315
Email
cherrychen@bestsealhk.com
Skype
xmbestseal
WhatsApp
+86 13063056167
WeChat
+86 13063056167
Address
Unit#522~525, Gaodian Road 6#, Huli District, Xiamen, China, PC 361006

Contact Best Seal

For inquiries, quotes, or technical support, visit our official website to connect with our team.

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