Description
This 70-400 black dome plastic cap adds a rounded, elevated finish that makes your jars stand out on the shelf. The domed top gives a softer, more premium silhouette than a flat cap, and the black finish pairs well with clear, amber, white, or frosted containers.
Each cap has a polyethylene foam liner that compresses against the container rim when tightened. This creates a dependable, leak-resistant seal that keeps contents fresh and helps prevent spills during shipping and storage.
Features
- Size: 70mm diameter with a 400 neck finish
- Style: Dome top for a distinctive, upscale look
- Liner: Foam liner for a secure, leak-resistant seal
- Color: Black
- Compatibility: Fits glass and plastic containers with a 70-400 neck finish
Ideal For
Creams, body butters, balms, salves, scrubs, gummies, herbs, spices, and other products packaged in 70-400 jars. A strong choice for cosmetics, skincare, food, cannabis, and home goods brands that want packaging with a little more presence.
Tip: Always confirm your container’s neck finish before ordering, since a 70-400 cap will not properly fit 70-450 or other finishes. For oil-heavy or solvent-based products, test the liner with your formula first.
Product Details
| Finish | 70-400 |
| Case pack | 680 units |
| Color | Black |
| Material | PP (polypropylene) |
| Recycling code | #5 PP |
Payment & Security
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Matching products
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Clearance
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Material at a glance
PP · Polypropylene
Strong and durable, and the most heat-resistant of the common packaging plastics.
Maximum temperature
- Heat resistance
- High, up to 275°F (hot fill and dishwasher)
- Durability
- Strong; makes durable flip-top hinges
- Chemical resistance
- Good with acids, bases and alcohols
- Color
- Translucent, opaque or any color
Great for
- Hot-filled and dishwasher-safe products
- Caps, closures and jars
Avoid
- Heat above 275°F
- Freezing temperatures (can turn brittle)
General material information. Always test compatibility with your product; free samples are available.
Liner at a glance
Foam liner
A general-purpose, economical liner made of low-density PE foam. It stays in the cap for repeated use and seals when the cap is screwed on tightly.
- Seal
- Compresses against the rim when tightened
- Reusable
- Yes, stays in the cap
Great for
- Foods and beverages
- Cosmetics
- Industrial and household chemicals
General guidance based on industry recommendations. Always test compatibility with your product; free samples are available.
Real people. Real service.
Need a large volume? Talk to a packaging specialist.
Ordering by the pallet, or need help matching containers and closures? Tell us what you’re packaging and we’ll put together the right combination, with free samples to test first.

