Guzhan | Custom Silicone Solutions – For Your Brand
Need a silicone gasket that seals perfectly and lasts? We solve common sealing issues: mismatched sizes, leakage during shipping, and material compatibility problems.
We design and manufacture custom silicone gaskets for glass jar manufacturers, food brands, industrial equipment makers, and replacement part suppliers. Whether you need a standard 70mm/86mm mason jar gasket or a completely custom size for your unique lid — we deliver the exact seal you need.
Material: FDA & LFGB compliant, food-grade silicone
MOQ: from 5,000 pcs | Trial order from 1,000 pcs
Sample: 7-10 days
Tooling: from $150 (refundable)
Why customers choose our seals & gaskets:
Perfect fit guaranteed – We match your lid size within 0.1mm tolerance
Leak-proof design – Tested for temperature change, vibration, and repeated use
FDA/LFGB compliant – Safe for direct food contact
Low MOQ available – Trial orders from 1,000 pcs
Common applications:
Glass jar manufacturers
Food packaging suppliers
Kitchen canister brands
Industrial equipmen
| Parameter | Options |
| Size (ID) | 10mm - 300mm, or custom |
| Thickness | 1mm - 8mm |
| Hardness | Shore A20 - A80 |
| Temperature | -40°C to +230°C |
| Material | Silicone (FDA/LFGB), NBR, EPDM |
| Color | Any Pantone color |
| MOQ (bulk) | 5,000 pcs |
| MOQ (trial) | 1,000 pcs |
| Tooling cost | From $150 (refundable) |
| Sample time | 7-10 days |
FAQ
Q1: My jar lid has an odd size. Can you match it exactly?
Yes. Send us your lid‘s inner diameter drawing or a physical sample. We’ll make a gasket that fits within 0.1mm tolerance.
Q2: Do your gaskets have FDA certification?
Yes. All our silicone compounds are FDA and LFGB compliant for food contact. Test reports available upon request.
Q3: My current gaskets leak during shipping. How do you solve that?
We analyze your jar‘s closure design and recommend the optimal hardness and cross-section shape. We also offer gaskets with a sealing lip design.
Q4: What‘s your MOQ for custom gaskets?
MOQ from 5,000 pcs for standard sizes. For first trial orders, we can go as low as 1,000-2,000 pcs.
Q5: How fast can I get a sample?
Sample available in 7-10 days after drawing approval. Tooling cost starts from $150, refundable upon bulk order.
Success Story: Glass Jar Manufacturer
Challenge: Inconsistent sealing leading to customer complaints about leakage during shipping
Solution: Custom silicone gasket with optimized hardness (Shore A40) and sealing lip design
Result: Zero leakage complaints after switching, annual order 1000,000 pcs