Silicone O-Ring
Food and industrial grade silicone o-rings, -60℃ to 230℃.

Features
- ✓-60℃ to 230℃ range
- ✓FDA / LFGB test reports available
- ✓±0.05mm tolerance
Customization Process
Applications
Used across hydraulic/pneumatic, home appliances, electronics, medical devices, food machinery, automotive, EV batteries, pumps/valves, and sanitary ware for sealing, dust-proofing, shock absorption, buffering, and insulation. Custom per drawing/sample, free sampling, stable lead time, helping cut BOM costs.
Process & Certifications
Materials range from food-grade, medical-grade, oil-resistant, to high-temperature compounds; hardness 30-70 Shore A; standard tolerance ±0.05mm (precision ±0.02mm). O-rings per GB/T 3452.1 and AS568. FDA, LFGB, RoHS, REACH reports; material certificates and dimensional inspection. Compression set (ASTM D395) ≤15% at 150°C×22h.
Frequently Asked Questions
What temperature range can silicone seals withstand?+
Standard food-grade silicone: -60°C to +230°C; specialty compounds tolerate +300°C short-term. We select Shore A 30-70 and compound per your working conditions.
What is the minimum O-ring size and precision tolerance?+
Minimum inner diameter 1.0mm. Standard tolerance ±0.05mm, precision grade ±0.02mm. FDA / LFGB / RoHS / REACH reports available.
What is your MOQ and sampling lead time?+
From 50 pcs, small-batch trials supported. Free 1-3 samples (customer pays shipping); sampling 5-7 working days; mass production 15-25 days.