Professional Fluorosilicone Rubber Products Manufacturer
Reliable Quality · Bulk Supply · Custom Solutions
Why Choose Kovisen
Professional team, advanced equipment, strict quality control - your reliable silicone rubber products partner
Quality Assurance
ISO9001 certified quality management system with strict control of every production process
Bulk Supply
Large-scale production capacity ensuring on-time delivery for high-volume orders
Custom Solutions
Professional R&D team providing personalized solutions based on customer requirements
Fast Lead Time
Efficient production workflow, standard products shipped in 3-7 days, priority handling for urgent orders
Featured Products
Premium silicone rubber products with reliable quality, complete specifications for diverse needs
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Rotary Shaft Seal 40x60x10mm
Precision rotary seal for high-speed rotating equipment, 40x60x10mm
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Silicone Sealing Rings
High-temperature resistant silicone seals, -60°C to +230°C. FDA & LFGB certified for food and medical applications
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FKM 25x35x7 High-Temp Oil Seal
High-temperature fluorocarbon oil seal 25x35x7mm, chemical resistant up to 230°C
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SC 30x45x8 Oil Seal
Double lip oil seal 30x45x8mm with dust lip, NBR material for contaminated environments
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TC 20x35x7 Oil Seal
Standard metric oil seal 20x35x7mm, NBR material for general rotating shaft applications
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Aviation Vibration Damping Balls
High-performance fluorosilicone rubber vibration isolators for flight controllers. Hardness 30A, excellent oil resistance
View DetailsIntelligent Material Selection Guide
Find the optimal silicone rubber material for your specific application requirements
Need expert guidance for your specific application?
Contact Our Engineering TeamMaterial Performance Comparison
Compare key properties of different silicone rubber materials to select the optimal solution for your application
| Property | FVMQ | LSR | VMQ | FKM |
|---|---|---|---|---|
Temperature Range Unit: °C | -60 to +200 | -60 to +230 | -60 to +230 | -20 to +200 |
Fuel/Oil Resistance | Excellent | Poor | Poor | Excellent |
Hardness Range Unit: Shore A | 30-80 | 10-80 | 20-80 | 50-90 |
Tensile Strength Unit: MPa | 6-9 | 7-10 | 6-8 | 8-12 |
Elongation at Break Unit: % | 200-400 | 300-600 | 200-500 | 150-300 |
Compression Set Unit: % | 15-25 | 10-20 | 20-30 | 15-25 |
FDA Compliance | Yes | Yes | Yes | Limited |
USP Class VI | Yes | Yes | Yes | No |
Chemical Resistance | Good | Fair | Fair | Excellent |
Weather/Ozone | Excellent | Excellent | Excellent | Excellent |
Electrical Insulation | Good | Excellent | Excellent | Good |
Cost Level | $$$ | $$$$ | $$ | $$$ |
Best Applications by Material
- FVMQ: Aerospace fuel systems, automotive fuel injection, oil & gas seals
- LSR: Medical devices, baby products, microfluidics, food contact parts
- VMQ: General seals & gaskets, vibration dampers, electrical insulation
- FKM: Chemical processing, automotive engines, petroleum refining
Need Expert Guidance?
Our engineering team can help you select the optimal material based on your specific requirements: temperature, chemical exposure, certifications, and budget.
Contact Our EngineersOur Track Record
Professional team, advanced equipment, strict quality control - earning customer trust worldwide
Certifications
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