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PRODUCTS
Specializing in the production of highquality silicone rubber products
PRODUCT
Specializing in the production of highquality silicone rubber products
— Product Categories
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Silicone tube -
LED light strip silicone sleeve -
Foamed silicone tube -
Silicone braided tube -
Medical silicone tube -
Peristaltic pump silicone hose -
Communication/power shrink tubing -
Silicone shielding strip -
Foam silicone sealing strip -
Silicone sealing strip/ring -
Bicycle handle cover/strap -
Silicone sheets and miscellaneous parts -
Silicone leather
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High temperature resistant silicone sealing strip/ring
Our high temperature resistant silicone sealing strip/ring is engineered to provide reliable sealing in extreme conditions, this product is crafted from durable silicone, ensuring it withstands high temperatures without losing its shape or effectiveness. Ideal for a wide range of applications, including automotive, industrial, and food processing, this sealing solution delivers optimal performance and longevity. Its easy installation makes it a versatile choice for various
- Heat Resistance: Withstands high temperatures without deformation.
- Durable Material: Provides long-lasting sealing performance.
- Versatile Applications: Suitable for automotive, industrial, and food-grade use.
- Easy Installation: Designed for straightforward application in various setups.
Product Features
Application
| Baby Daily Necessities | State Grid | BS/COM/ESS | Optoelectronics industry |
| mechanical seal | New energy vehicles | Home appliance | Sports equipment |
- Parameters
- Heat Resistance: Withstands high temperatures without deformation.
- Durable Material: Provides long-lasting sealing performance.
- Versatile Applications: Suitable for automotive, industrial, and food-grade use.
- Easy Installation: Designed for straightforward application in various setups.
Product Features
Application
| Baby Daily Necessities | State Grid | BS/COM/ESS | Optoelectronics industry |
| mechanical seal | New energy vehicles | Home appliance | Sports equipment |
Yutian · Three factories in one chain – full control from raw material to extrusion
High Temperature Silicone Seal Strip
Direct from manufacturer · Withstands 250‑350°C · Custom cross‑sections · Long-term compression recovery
✓ Industrial oven door seals✓ Reflow oven equipment✓ Food oven gaskets
Up to 350°C continuousPlatinum cured · odorlessCustom cross‑sectionsHigh resilience · ≤10% compression set3-5 day sampling
Three factories · Full industry chain synergy
Guilin Yutian
Silicone raw material
Source control · stable quality
Dongguan Huahong
Silicone auxiliaries & products
Cost optimization
Dongguan Yutian
Extruded silicone profiles
Precision extrusion · final delivery
Raw materialAuxiliariesExtrusionDelivery
Technical parameters
Temp range
-60~350 ℃
Curing process
Platinum cured odorless
Hardness
40~80 Shore A
Compression recovery
≥95 %
Cross‑section
D/P/E/custom
Flame rating
UL94 V‑0 optional
Common profile types & applications
| Profile | Shape | Features | Applications |
|---|---|---|---|
| D‑shape | D profile | High compression, good recovery | Oven doors, food oven seals |
| P‑shape | P profile | Secure fit, strong sealing | Equipment access doors, boiler doors |
| E‑shape | E profile (multi‑lip) | Multi‑seal, dust tight | Reflow ovens, drying equipment |
| Custom | Made to drawing | Designed for specific groove | Special equipment frames |
* All profiles can be custom‑extruded. Free design assistance – send your drawing.
Why choose Yutian
Withstands up to 350°C – stable under extreme heat
Platinum cured · -60°C to +350°C wide range
Our high‑temperature formula with platinum curing ensures no hardening, no cracking, no decomposition even at 350°C. Perfect for industrial ovens, reflow soldering machines, and food baking equipment.
→ Long seal life, reduced downtime and maintenanceHigh resilience – no permanent compression set
Recovery rate ≥95% · stays tight after thousands of cycles
Closed‑cell or micro‑cellular structure (selectable). Compression set ≤10%, even after long‑term compression. Ideal for frequently opened doors.
→ Consistent sealing, lower energy lossCustom cross‑sections – match any groove
D / P / E / any shape · rich mold library
20+ years extrusion experience. We produce any profile from your drawing. Many standard shapes already in stock; custom tooling 3‑5 days.
→ No need to design your own mold, fast fit to your equipmentFull chain control – from raw material to finished seal
Three factories work together · consistent quality
Raw silicone compounding → auxiliaries → extrusion, all in‑house. Batch‑to‑batch consistency ensures your production runs smoothly.
→ Stable performance for OEM ordersSilicone vs other materials
| Property | Silicone seal | EPDM seal | FKM seal |
|---|---|---|---|
| Temperature range | ✓ -60°C to +350°C | -40°C to +150°C | -20°C to +250°C |
| Compression recovery | ✓ ≥95% | 80-85% | 70-80% |
| Odor at high temp | ✓ Platinum cured · odorless | Rubber smell | Mild smell |
| Custom profiles | ✓ Flexible extrusion | Mold required | Mold required |
| Service life | ✓ 5+ years | 2-3 years | 3-5 years |
| Food contact grade | ✓ FDA optional | No | Limited |
※ Silicone outperforms EPDM and FKM in temperature range, resilience, odor control and customisation flexibility.
Typical applications
🏭
Industrial ovens
Door sealing
⚡
Reflow ovens
High‑temp sealing
🍞
Food ovens
Food‑grade gasket
🔥
Boiler doors
Heat resistant seal
🌪️
Drying equipment
Hot air sealing
🔬
Lab furnaces
High‑temp furnace seal
🏗️
Coating lines
Curing oven seal
📦
Sterilizers
Steam sealing
Made to your specification
OEM / ODM welcome. Cross‑section, hardness, temperature grade all adjustable. Request a catalog.
Custom cross‑section from drawing
Hardness 40‑80 Shore A
Temperature grade on request
UL94 V‑0 flame retardant
FDA food‑contact grade
Fast tooling from drawing
🎁 Cooperation benefits
📦
Free samples
1‑3 samples free of charge (shipping cost applies)
Quick dimension verification
Quick dimension verification
🎨
Custom designs
Extrude any cross‑section
3‑5 day sampling
3‑5 day sampling
⚡
Fast response
Quote within 1 hour
Lead time 3‑5 days faster than average
Lead time 3‑5 days faster than average
Certifications & tests
High temp test
Up to 350°C verified
PassedFlame retardancy
UL94 V‑0 optional
PassedRoHS / REACH
Environmental compliance
Passed⭐ National High‑tech Enterprise GR202544003098 | 🏭 ISO 9001:606620
Customisation process
1
Send drawing / need
→
2
1‑day solution
→
3
3‑5 day sample
→
4
Mass production
→
5
7‑10 day delivery
→
6
After‑sales support
Trusted by industry leaders
- Top Chinese industrial oven manufacturer – long‑term seal supplier
- Listed reflow oven equipment company – main sealing partner
- Major South China food oven brand – food‑grade seal partner
- Well‑known lab equipment brand – high‑temp furnace seal provider
Frequently asked questions
Q: What maximum temperature can your silicone seal withstand? How does it compare to ordinary rubber?
Our high‑temperature silicone seal works continuously at 250‑350°C (peak higher). EPDM only goes to 150°C, FKM to ~250°C. Platinum cured silicone is odorless at high temp, recovery ≥95%, no permanent compression set.
Q: What’s the difference between D‑shape, P‑shape and E‑shape seals? Which one should I choose?
D‑shape offers large compression – good for oven doors; P‑shape secure fit for access doors; E‑shape multi‑lip for high sealing. Send your groove dimensions, we’ll recommend the best profile.
Q: Can you produce food‑grade high temperature seals?
Yes. Platinum cured silicone passes FDA tests. Suitable for food ovens, sterilizers and any application requiring indirect food contact.
Q: Will the seal harden or deform after long‑term high temperature exposure?
Our formulation stays flexible up to 250°C with almost no hardening. Even at 350°C it significantly outlasts ordinary rubber. Recovery rate ≥95% after repeated compression.
Q: Sample cost and lead time? Is there stock?
Common profile samples: $40‑50 (refundable). Custom tooling: $70‑300. Sampling 3‑5 days, mass production 7‑10 days. Popular D/P profiles in stock for quick dispatch.
📩 Get a free custom solution
High Temp Silicone Seal Strip
250‑350°C · D/P/E/custom profiles · No compression set
🌡️
350°C
Platinum cured · odorless
Long life without hardening
Long life without hardening
📐
Custom profile
D/P/E/any shape from drawing
3‑5 day sampling
3‑5 day sampling
🏭
Integrated factory
Three factories one chain
Quality & cost control
Quality & cost control
Request a quote or free sample evaluation
Send drawing → 1h response → solution same day
First 50 customers: custom tooling fee waived
Contact us nowHigh temperature silicone seal strip for industrial ovens, reflow ovens, food ovens, boiler doors. Withstands 250-350°C, platinum cured, odorless. Custom D/P/E profiles, recovery ≥95%, long-term compression set ≤10%. FDA, RoHS, REACH compliant. Direct from Yutian factory.
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