Water Cup Seal Ring

Craftsmanship
Made of food-grade high-purity silicone with platinum vulcanization and precision molding process. Strict dimensional tolerance control ensures stable size and perfect fit with cup lids. Non-toxic, odorless, BPA-free and heavy-metal free, compliant with FDA, LFGB and SGS food contact safety standards.
Key Properties
Food-grade safe, non-toxic and suitable for direct drinking water contact
High elasticity and excellent sealing performance, leak-proof and reliable
Wide temperature resistance (-40℃ to 200℃), anti-aging, not easy to deform or yellow
Smooth surface, easy to clean and not easy to breed bacteria
Main Functions
Effectively prevent liquid leakage, isolate dust and bacteria, reduce wear between lid and cup body, extend service life, and ensure safe and hygienic use of water cups.
Applications
Widely used for sealing water cups, insulated bottles, travel mugs, sports kettles, baby bottles, food containers and storage boxes. Suitable for OEM & ODM mass orders for daily necessities, kitchenware and outdoor products.

Q: What information do I need to provide for customizing silicone seal rings?
A: You need to provide detailed size parameters (for round rings: Inner Diameter ID × Outer Diameter OD × Wire Diameter WD; for square/square-frame rings: Inner Length IL × Inner Width IW × Wire Height WH), product shape (round/square/irregular), color, quantity, and whether special processes (such as heat bonding, frosting) are needed; if you have samples or drawings, you can provide them directly to improve customization accuracy.

Q: What is the production lead time for custom orders from China to overseas?
A: The conventional customized production lead time is 7-15 working days (excluding sample confirmation and special raw material procurement); simple customization (conventional size, conventional color, no new mold required) takes 7-10 working days, and complex customization (special size, special process) takes 10-15 working days; if sample confirmation is needed, an additional 3-7 working days are required.

Q: Do you accept small-batch custom orders? What is the minimum order quantity (MOQ)?
A: Small-batch customization is accepted, and the conventional minimum order quantity (MOQ) is 100 pieces; if the order quantity is small (less than 100 pieces), it can be adjusted through negotiation, and a small customization fee needs to be paid additionally; large-batch orders can enjoy more preferential prices and shorter production cycles.

Q: What cross-border transportation methods are available? What is the logistics lead time?
A: Two conventional cross-border transportation methods are mainly provided, which can be selected on demand: ① Air freight: fast time efficiency, arriving in 1-2 weeks, suitable for small-batch and urgent orders; ② Sea freight: high cost performance, arriving in 4-6 weeks, suitable for large-batch and long-term stable orders; the logistics lead time does not include customs clearance time, which is usually 3-7 working days (depending on the customs policy of the destination country).

Q: Who is responsible for the customs clearance fees and import taxes?
A: The default term is FOB Chinese port, and the customs clearance fees, import taxes and destination delivery fees shall be borne by the overseas customer; if the customer needs CIF terms (including freight and insurance) or DDP terms (including customs clearance and taxes), it can be negotiated in advance to adjust the quotation and terms.

Q: Does the silicone seal ring meet the safety standards of European and American markets? What certifications do you have?
A:The product fully meets the compliance requirements of the European and American markets, made of food-grade platinum-cured silicone, certified by FDA (US food-grade certification), LFGB (German food-grade certification), SGS (third-party testing certification), and RoHS (environmental protection certification); according to customer needs, we can provide original or electronic versions of corresponding certification reports to ensure the product smoothly enters the European and American markets.

Q: Is the product non-toxic and suitable for food contact scenarios?
A: The product is non-toxic, odorless, BPA-free, no harmful substances are released, and it meets the food contact safety standards. It can be directly used in food contact scenarios such as lunch boxes, water cups, and food medical equipment, and can withstand microwave and dishwasher cleaning.

Q:What are the key performance advantages of solid silicone seal rings?
A: The core advantages include: ① Super waterproof, dustproof and leak-proof (up to IP67 level); ② Wide temperature resistance (-40℃ to 200℃), anti-aging and anti-compression set; ③ High resilience, wear resistance and tear resistance, with a service life 3-5 times that of ordinary rubber; ④ Food-grade safety, eco-friendly and non-toxic, suitable for multi-scenario sealing needs.

Q: What industries and scenarios are the products suitable for?
A: It is widely used in home appliances, automotive industry, mechanical equipment, food & medical equipment, household products and other fields, specifically for home appliance sealing, automotive pipeline sealing, mechanical equipment waterproofing and dustproofing, food & medical equipment interface sealing, lunch box/water cup sealing and other scenarios.

Q: What if the product has size discrepancy or quality problems after receipt?
A: If there is a size discrepancy or quality problem (such as aging, cracking, substandard sealing performance) caused by us, please provide relevant vouchers (photos, videos) within 7 working days after receiving the goods, and we will provide free replacement, return and exchange, and bear the relevant cross-border shipping costs; if the problem is caused by incorrect size/parameters provided by the customer, we can assist in re-customization and charge a reasonable customization fee.

Q: Can you provide samples? Is there a sample fee?
A: We can provide free conventional samples (1-3 pieces), and the sample shipping fee shall be borne by the customer; if customized samples (special size, color, process) are needed, a small sample production fee is required, which can be deducted in the subsequent bulk orders.

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