The 30W29S is a 28mm (28-400) aluminum cap with a white pulp/polyethylene liner, typically used on glass bottles, jars and jugs. White pulp/polyethylene lined metal caps are a great general purpose closure. They are ideal for powders and non-acidic food products and consumer products such as jar candles and honey.

Aluminum closures are lightweight caps that have a neutral color. They are commonly made with no color coating, though custom colors are available for specialty applications. These closures can tolerate various temperatures and are resistant to impact fractures. They are applicable with products in high humidity environments, high salt content products, or water. Aluminum metal closures tend to cost more because of the value of its raw material.

Pulp and polyethylene liners are coated with bleached kraft extrusion on one side with white high density polyethylene (HDPE) on the other side. These white liners have been laminated to pulp and provide good chemical resistance. Common applications for pulp/polyethylene liners are use with water-based adhesives, household ammonia, liquid antacid, auto cleaners, mouthwash, lemon juices, syrups and more.


This information has been provided as a general guide. It is the customer's responsibility to select the proper container for product and application compatibility. The Cary Company does hereby disclaim any and all warranties, expressed or implied, including any implied warranty of merchantability or fitness for a particular purpose or use. We are not responsible for consequential damages arising from customer's selection and use of containers, container and label dimensions, and/or closures supplied by us.

Additional Information

More Information
Neck Width28 mm
Neck Finish28-400
Liner CompatibilityGlass
FDA CompliantYes
Dimensions1.194" Outside Dia. (Curl) x .407" H
Case Pack5,400 ea.
Pallet Pack194,400 ea. (36 Cases)
Case Weight41 lbs.
Case Dimensions14" x 14" x 14"
Country of ManufactureUnited States
Q & A
Customer Questions
Can you ship internationally? Where are you located?
The Cary Company online ordering platform is only set up to ship within the United States. For international shipments, please contact us at 630.629.6600 or Sales@thecarycompany.com, and we will be happy to process your order. Our main warehouse and office are located in Addison, Ill. We also have warehouses in across the United States that you can see here. Thank you for choosing The Cary Company.
Which metal caps for glass containers can withstand high temperatures?
Caps made of electrolytic tinplate (tin coated steel) with a plastisol liner are recommended to use when heat is required.
What types of glass containers are compatible with this metal cap?
This metal cap is compatible with other glass bottles, jars and jugs that share the same neck finish size.
Is this metal cap for glass FDA-approved?
These metal closures are FDA approved and available in aluminum or electrolytic tinplate (tin coated steel).
Is this metal cap for glass containers recyclable?
Yes, because this cap is made of metal, it is recyclable.
What kind of caps do you offer that’s compatible with steel containers?
The Cary Company offers standard metal and plastic-overcap metal caps that are available in Delta F-style, Delta cap, Alpha cap, and Beta cap styles.
What kind of metal cap liners do you offer that’s compatible with steel containers?
Each cap may also be lined with a solvseal liner, pulp and foil liner, pulp and solvseal liner, foil liner, or an aluminum liner.
Is this metal cap for steel containers recyclable?
Yes, because this cap is made of metal, it is recyclable.
Would this cap rust over time if used for raw juice shots? if so what would be an ideal plastic free alternative?
Thank you for your inquiry. When using glass bottles, it is not recommended to use plastic caps. We cannot guarantee it will work for your product. We recommend requesting samples and testing prior to purchase. Thank you for choosing The Cary Company!
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