28/30/38mm PP Plastic Screw Bottle Caps｜Water Bottle Closure with PE Liner
Product Overview
Our standard screw plastic caps are crafted from food-grade PP raw material, available in three mainstream specs: 28mm, 30mm, 38mm inner diameter, fitted with detachable PE sealing liner. Designed for mineral water, fruit drink, outdoor sports drinking bottles, we support full-color, logo & packaging OEM customization, backed by 16+ years professional factory production & global multi-channel logistics.
Product Size
Three regular inner diameter specifications:
- 28mm caliber
- 30mm caliber
- 38mm caliber
Standard white as stock color, all sizes support custom dimensional development for special bottle mouths.
Product Detail
- Premium Raw Material
Made of high-quality food-grade PP plastic, eco-friendly, harmless, conforms to international food packaging safety standard, no peculiar smell or harmful substance precipitation. - Non-toxic Safe Construction
Whole cap body and inner PE liner are food-safe raw materials, safe for direct contact with drinking liquid, ideal for baby drinking bottle matching. - High Durability
Thickened cap wall structure, compression & drop resistant, not easy to crack during long-distance transportation and repeated screwing. - Leak-proof Sealing Liner
Built-in customized PE gasket, closely fits bottle opening after tightening to avoid liquid leakage and beverage volatilization; outer vertical anti-slip rib improves screwing friction.
Customization Service
- Color Custom: Full Pantone color customization, various bright/matte colors beyond default white.
- Logo Custom: Silk screen printing, embossing brand logo or pattern on cap surface.
- Mold Custom: Develop exclusive new-size molds to match non-standard bottle neck dimension.
Packaging & Factory Advantage
Packaging
Flexible packaging options: bulk PE bag inner packing + export carton outer packing, also support custom printed carton with customer’s brand information; pallet loading for large wholesale orders to avoid damage during transit.
Factory
16+ years professional plastic cap manufacturer, owns CNAS、ISO、CE、FC authoritative certifications, full-automatic injection molding production workshop, strict whole-process QC inspection, sufficient spot inventory and fast delivery; supply sea/air/land three global logistics modes for worldwide shipment.
FAQ
1,How can we know these are really lead free and food grade?
As usual for glass we have common material , high white material, crystal white material, all these material are suitable for food
grade and lead free, we pass food grade test,no need to worry safety.
2, How can I get a sample to check your quality? Do you offer free sample?
-- Yes, free samples are available,direct trade assurance order is allowed. Only freight cost is on your side which will be
refundable once the order was placed. Or if you have a courier account, we can arrange samples by collected.
3,How about the Safe package and defective and broken questions?
-- For small order or samples, we all use bubble bags or foam to pack one by one, so far customers who placed small orders have
not yet feedback about the damaged problem.
--For large quantity of container order, we support the standard export pallet package or paper carton with safe egg packing. Also
we accept customized gift box.
--Other accessories like caps will put in another carton to avoid hitting. We will guarantee the broken rate under 0.2%.
--We will compensate the defective and broken bottles by your next order freely.
4,What surface handing could you support? Shall we do our logo on it?
--Sure, we can do the logo as you need and support decoration firing ,screen printing, hot stamping, frost, label printing etc.
--About printing color: it can be made according to PANTONE color number.
5, How about the sealing?
For glass jar, we have glass lids, plastic caps, metal caps and ect ,all these kinds of lids will be matched with the jar
perfectly and sealing very well. There is a small strip of rubber under the lid where the glass hits the lid. They seal pretty
well.Food-grade rubber in line with EU export standards,the lids are very easy to screw on and off. Just one twist for on and one
for off.
6,What about the lead time?
-- samples will be send within 12-24hours after we receive your payment;
--small orders will be delivery within 7-10 days after we receive your payment.
--large quantity orders will be delivery with 20-25days.
7,What is your payment?
--For sample or trial order,we accept Paypal,western union and trade assurance.
--For larger orders,T/T or L/C or trade assurance will be acceptable.
8,What's your shipping terms?
For samples or trial order,FEDEX,DHL,UPS ,TNT,ARAMEX can be provided.
For larger orders,delivery by air or sea or rail accord to your requirements, we will try to help you to choose the best way depending your actual situation.
