H Shaped Silicone Gaskets – Custom Extruded Silicone Seals Manufacturer in China
Introduction
H shaped silicone gaskets are widely used sealing and cushioning components designed to fit securely between two panels, such as glass and aluminum frames. At Xiamen Jinshun Sealing Technology Co., Ltd., we manufacture custom H shaped silicone gaskets with stable dimensions, excellent elasticity, and long-term sealing performance.
Established in 2002, Jinshun Sealing is an experienced custom silicone gaskets manufacturer and exporter in China, serving OEM and ODM customers across food & drinking water systems, electronics, appliances, automotive, and industrial equipment. All products are manufactured under ISO 9001:2015 and ISO 14001:2015 quality systems and comply with FDA, LFGB, NSF, WRAS, ROHS, and REACH requirements.
What Are H Shaped Silicone Gaskets?
H shaped silicone gaskets are extruded silicone rubber profiles with a distinctive "H" cross-section. This structure allows the gasket to grip two surfaces at the same time, providing stable positioning, vibration damping, and reliable sealing without complex assembly.
They are especially popular in:
- Glass-to-metal sealing
- Aluminum window and door systems
- Equipment panels and housings
- Food-grade and sanitary applications
Compared with standard flat gaskets, H profile silicone gaskets offer better retention and alignment, even under temperature changes or vibration.
Key Advantages of Our H Shaped Silicone Gaskets
What makes Jinshun's H shaped silicone gaskets stand out in real-world use:
- Excellent flexibility & rebound – maintains sealing force after long-term compression
- Wide temperature resistance – performs from -60°C to +200°C (-76°F to 392°F)
- Strong aging & weather resistance – UV, ozone, and oxidation resistant
- Good shock absorption & noise reduction – ideal for windows, panels, and enclosures
- Chemical resistance – suitable for polar liquids, mild acids, and cleaning agents
- Food-grade options available – approved for food, water, and sanitary use
Our products are SGS-tested and produced using high-purity silicone raw materials to ensure consistent performance batch after batch.
Technical Specifications (Customizable)
| Parameter | Standard Range / Options |
|---|---|
| Material | Silicone Rubber (VMQ), Food Grade Silicone |
| Hardness | 40–80 Shore A (customizable) |
| Temperature Range | -60°C to +200°C |
| Color Options | Transparent, White, Black, Red, Custom |
| Profile Type | H-shaped (custom cross-sections available) |
| Manufacturing Process | Silicone extrusion |
| Certifications | FDA, LFGB, NSF, WRAS, ROHS, REACH |
| Customization | Drawing, sample, or concept-based ODM |
Tools and extrusion dies can be developed quickly based on drawings or samples.
Common Applications of H Shaped Silicone Gaskets
H shaped silicone gaskets are used across multiple industries where sealing, cushioning, and protection are critical:
- Windows & Doors – sealing glass and aluminum frames
- Home Appliances – ovens, refrigerators, electrical enclosures
- Food & Drinking Water Systems – sanitary sealing applications
- Rail & Transportation – vibration isolation and dust protection
- Electronics & Machinery – panel sealing and noise reduction
- Pharmaceutical Equipment – clean and stable sealing solutions
Thanks to silicone's stability, these gaskets perform reliably in both indoor and outdoor environments.
Custom Manufacturing & ODM Support
As a professional custom silicone gasket manufacturer, we support:
- OEM & ODM projects
- Small batch trials and mass production
- Material selection guidance
- Application-based profile optimization
Our in-house R&D and extrusion capability allow us to control cost, quality, and delivery time, making us a long-term partner for global brands and distributors.
Why Choose Jinshun Sealing?
✅ Over 20 years of rubber sealing manufacturing experience
✅ ISO-certified production and strict QC processes
✅ Raw materials compliant with global regulations
✅ Trusted supplier to domestic & international brands
✅ Stable export experience for Europe, North America & Asia
We don't just sell gaskets - we help customers solve sealing problems.
FAQs – H Shaped Silicone Gaskets
Q1: Can you produce H shaped silicone gaskets based on my drawing or sample?
Yes. We support full ODM manufacturing based on drawings, samples, or application requirements.
Q2: Are your H shaped silicone gaskets food-grade?
Yes. We offer FDA, LFGB, NSF, and WRAS-approved food-grade silicone options.
Q3: What is the minimum order quantity (MOQ)?
MOQ depends on profile size and material. Small trial orders are negotiable.
Q4: Can these gaskets be used outdoors?
Absolutely. Silicone has excellent UV, ozone, and weather resistance.
Q5: What industries do you mainly serve?
Food & water systems, appliances, electronics, automotive, rail, and industrial equipment.
Looking for a reliable H shaped silicone gaskets manufacturer in China?
📩 Send us your drawing, sample, or application details today.
Our engineering team will help you select the right material and profile for your project.
👉 Visit: https://www.jinshunsealing.com
👉 Email: ywb6@jinshunxm.com
👉 ODM & Wholesale Inquiries Welcome
