Product Overview
Airtight Rubber Seal Rings are precision-engineered silicone components designed to create a perfect hermetic barrier for glass jars, storage canisters, and vacuum-sealed containers. Unlike standard rubber gaskets, our airtight rings are crafted from high-purity, food-grade silicone that remains flexible and odorless, ensuring stored food remains fresh for extended periods.
Ideal for B2B food packaging, cosmetic jars, and pharmaceutical storage, these seal rings provide 100% leak-proof performance even when inverted. Xiamen Best Seal specializes in custom-molded jar gaskets that offer superior compression set resistance, making them durable enough for hundreds of reuse cycles and high-heat sterilization.
Global Safety Standards: FDA & LFGB
 |
Certified Purity for Food ContactOur seal rings are manufactured using **platinum-cured silicone**, meeting the world's most stringent food safety regulations. They are completely BPA-free, odorless, and do not migrate chemicals or flavors into the contents, even during long-term storage or acidic pickling processes.
|
Airtight & Hermetic Technology
Creating a reliable vacuum seal on glass surfaces requires a balanced elastomer hardness and low compression set. Our Airtight Seal Rings are engineered with a specific durometer that conforms to microscopic rim irregularities, preventing air ingress and moisture absorption.
Stops oxygen flow to preserve colors, flavors, and nutritional value in canned goods.
Essential for preserving dry goods (salts, spices, powders) from clumping due to humidity.
Material Selection
| Food-Grade Material | Key Features | Certifications |
|---|---|---|
| Platinum-Cured Silicone (VMQ) | Ultra-pure, no VOCs, odorless, translucent finish | LFGB, FDA, 3-A Dairy |
| Peroxide-Cured Silicone (VMQ) | Cost-effective, excellent thermal stability | FDA, RoHS, REACH |
| Food-Grade EPDM | Resistant to high-heat steam and acidic cleaners | NSF-51, FDA |
| Food-Grade FKM (Viton) | Excellent resistance to oils, fats, and high temperatures | FDA 21 CFR 177.2600 |
2. Special Compound Options
- ˚ ✵ High-purity Platinum-cured Silicone (VMQ)
- ˚ ✵ Steam-resistant EPDM compounds
- ˚ ✵ Color-matched Pantone elastomers
3. Surface Treatment Options
- ˚ ✵ Talc powder treatment (Anti-sticking)
- ˚ ✵ Silicone oil sterilization treatment
- ˚ ✵ PTFE dry film coating
Product Advantages
✬ * Why Choose Our Airtight Seal Rings?
- Hermetic Sealing Force – Precision-molded to provide a consistent 360° vacuum barrier
- Non-Reactive VMQ – Will not discolor, absorb odors, or affect the flavor of delicate food products
- High-Heat Durability – Safe for boiling-water canning and household dishwasher sterilization
- Low Compression Set – Maintains its sealing thickness even after long periods of closure
- Custom Color Matching – Available in translucent, translucent-red, or any Pantone color to match your brand
☾. ° Xiamen Best Seal Manufacturing Strength
- Clean-Room Processing – Available for medical-grade and high-purity food seals
- Precision Secondary Curing – Eliminates all Volatile Organic Compounds (VOCs) for LFGB compliance
- Tooling Versatility – Over 5,000 existing molds for jar rings (ID 40mm to 150mm+)
- Custom Logo Embossing – Can integrate your brand logo directly onto the silicone seal
- Mass Volume Efficiency – Automated high-speed injection molding for cost-effective supply
Product Applications
Universal Packaging SolutionsOur Airtight Rubber Seal Rings are the industry gold standard for luxury food preservation jars, clip-top canisters, and Mason jars used for honey, preserves, and spices. In the Health & Beauty sector, they are indispensable for sealing glass cosmetic canisters, preventing creams and oils from oxidizing or drying out. |
|
Installation & Maintenance Guide
🛠️ Best Practices for Jar Seal Maintenance
Before first use, sterilize the ring in boiling water for 3-5 minutes. Silicone is safe up to 230°C.
Ensure the gasket is seated flat on the jar lid. Any fold or pinch will break the airtight vacuum.
Remove the ring occasionally for a thorough wash. Use warm soapy water or place in the top rack of the dishwasher.
Inspect for cracks or loss of elasticity every year. For commercial packaging, replace if vacuum seal is compromised.
Packaging & Shipping
📦 Packaging Options
We provide flexible packaging solutions based on product size, order quantity, protection requirements, and customer preferences. Both standard and special packaging options are available to ensure safe delivery and convenient handling.
| Category | Packaging Type |
|---|---|
| Standard Packaging | Large Poly Bags (Bulk) |
| Small Poly Bags | |
| Foam / Bubble Protective Packaging | |
| Special Packaging | Blister Packaging |
| Inflatable Packaging | |
| Plastic Heat Shrink Packaging + Cardboard Reinforcement | |
| Sleeve Packaging (Protective Tube) | |
| Customization Available: Labels, part numbers, barcodes, batch info, or customer branding upon request | |
🚚 Shipping & Logistics
We offer multiple shipping methods with flexible delivery options to meet your project timelines.
| Item | Details |
|---|---|
| Shipping Methods | Express (DHL / FedEx / UPS), Air Freight, Sea Freight |
| Delivery Time | Express: 3–5 days | Air: 5–7 days | Sea: 25–35 days |
| Export Packing | Standard export cartons, palletized if required |
| Trade Terms | EXW, FOB, CIF, DDP available |
| Shipping Port | Xiamen, China |
| Custom / Tooling Orders | Orders requiring custom molds or special tooling |
💡Secure & Reliable Delivery :
All products are packed to prevent contamination, deformation, and surface damage, ensuring they arrive in optimal condition for immediate use or assembly.
Certificates & Compliance
🏆 Industry Standards: ISO 9001:2015, WRAS, NSF 61, FDA, RoHS 2.0, REACH
⚙️ Material Verification: ASTM D2000, LFGB Certified silicone compounds
🧪 Food Safety Commitment:
Our airtight seals are produced under strict quality control to ensure they are 100% safe for long-term contact with liquids, oils, and organic food products without flavor migration.
⋆⋅☆⋅⋆ Related Sealing Solutions ⋆⋅☆⋅⋆
Hot Tags: Airtight Rubber Seal Ring, China Airtight Rubber Seal Ring suppliers, manufacturers, factory
