Custom silicone sponge profile o ring gaskets

Custom silicone sponge profile o ring gaskets|Foam Silicone Sealing Gaskets

Product Overview

Custom silicone sponge profile o ring gaskets, also known as foam silicone sealing gaskets, are custom fabricated flexible sealing components made from high-quality pure VMQ silicone foam material. Different from solid rubber gaskets, our custom silicone sponge profile o ring gaskets feature a unique porous foam structure, available in closed-cell, semi-closed-cell and open-cell designs to adapt to diverse industrial working conditions. All products are RoHS, REACH and FDA compliant, supporting industrial-grade and food-grade customization. As a professional manufacturer, we process straight silicone foam strips and custom profile foam materials into integrated seamless O-rings and custom-shaped gaskets through professional bonding and hot vulcanization technology. With outstanding compression resilience, extreme temperature stability, insulation and weather resistance, these custom silicone sponge profile o ring gaskets serve as universal, cost-effective sealing, cushioning, dustproof and waterproof solutions for countless industrial, new energy, electronic and commercial equipment.

Youtube video : How the silicone sponge rubber o ring gaskets are bonded by our silicone sponge o ring full automatic cutting and bonding machine 

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The bonded silicone sponge rubber o ring gakets are good joint strength ,good joint quality and smalle cutting length tolerance . the productivity reaches 20000-36000pcs per day per fully silicone sponge o ring gaskets automatic bonding machine .

Technical Information

Model No.:ES-S-002

Core Performance Parameters

Product Advantages

Our custom silicone sponge profile o ring gaskets integrate multiple superior material properties and mature manufacturing techniques, bringing unmatched advantages over ordinary rubber sealing parts. The core product strengths are listed below:

1. Excellent Extreme Temperature Resistance
   These custom silicone sponge profile o ring gaskets perform stably in extreme working environments, supporting a wide temperature range from -40°C to +200°C. The material maintains stable softness, flexibility and tight sealing performance under long-term high-temperature exposure or freezing low-temperature conditions, without hardening, cracking, deformation or performance attenuation, perfectly suitable for high-temperature industrial equipment and outdoor low-temperature scenarios.

2. Superior Compression Resilience & Low Compression Set
Featuring a unique porous sponge structure and ultra-soft texture, our foam silicone gaskets deliver outstanding compression and recovery performance. With low permanent compression set, the gaskets can perfectly fit uneven and irregular mounting surfaces, sustaining stable airtight, waterproof and dustproof sealing effects after repeated extrusion, compression and frequent opening-closing cycles.

3, Good bonding strength & small cutting length tolerance &good joint quality .

The bonded silicone sponge o ring gaskets are good joint strength , good joint quality without dislocation and small cutting length tolerance by our fully automatic silicone sponge rubber gaskets fully automatic cutting and bonding machine

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4. Eco-Friendly & Safe Material Certification
   All raw materials are non-toxic, odorless and environmentally friendly, fully compliant with RoHS, REACH and FDA standards. Both industrial-grade and food-grade formulas are available, meeting strict safety requirements for food processing machinery and medical equipment sealing.

5. Daily output of 22,000 to 36,000 pieces of bonded silicone sponge o rings
Equipped with advanced full-automatic silicone O-ring cutting and bonding machines

 we achieve mass production of custom silicone sponge profile o ring gaskets with a stable daily output of 22,000 to 36,000 pieces. Automated processing guarantees ultra-small cutting length tolerance, excellent batch consistency and zero size deviation. Our professional automatic bonding technology provides extremely strong joint strength, effectively avoiding joint cracking, separation and liquid leakage caused by weak bonding, which solves the common quality pain points of manual-produced gaskets.

6. High-Precision Custom Extrusion Capability
With independent silicone extrusion production lines , we can extrude all types of custom silicone sponge gasket profiles with strict small cross-section size tolerance and different perimeter of silicone sponge gaskets o rings are available by setting different cutting length on the full automatic bonding machine  . We support customized ultra-thin, irregular, special-shaped cross-section profiles that most factories cannot process. Integrating extrusion, cutting and bonding processes, we support low MOQ, no mold cost, precise dimensional accuracy and fast lead time to reduce customers’ procurement costs.

Typical Applications

Benefiting from versatile comprehensive performance, our custom silicone sponge profile o ring gaskets and foam O-rings are widely adopted across multiple industries worldwide:

New Energy Industry: New energy vehicle battery packs, energy storage cabinets, charging piles, and power equipment sealing, providing insulation, anti-electrolyte corrosion and buffer protection.

Electrical & Electronic Industry: Outdoor LED lights, communication enclosures, distribution boxes, control cabinets, and household appliances including ovens, disinfection cabinets and heating equipment for dustproof, moisture-proof and insulating sealing.

Automotive & Transportation: Automotive lamps, doors, air duct systems, and rail transit carriage connection parts for sealing, shock absorption and noise reduction.

Medical & Food Industry: Food machinery and medical equipment sealing with food-grade safe, non-toxic and hygienic properties.

Product Summary

Custom silicone sponge profile o ring gaskets are multi-functional, durable and cost-effective industrial sealing solutions that combine temperature resistance, weather resistance, insulation, shock absorption and environmental safety. As a professional dedicated manufacturer, we strictly control raw material quality and production processes, providing standard and fully custom silicone sponge profile gaskets to match diverse industrial application requirements. We stand out from ordinary suppliers with our integrated in-house production strength: equipped with full-automatic cutting and bonding equipment and independent extrusion lines, we support high-precision custom profile extrusion, ultra-tight dimensional tolerance, strong bonding joint strength with outstanding product consistency, fast delivery and reliable quality. Whether for standard specification replacement or non-standard customized sealing parts, our custom silicone sponge profile o ring gaskets deliver stable long-term performance, reduce equipment failure rates and lower overall operating costs for global clients, our sponge silicone sealing components are the ideal choice for industrial, new energy, electronic, automotive and commercial sealing systems.