Welcome to Drop-Lok : Drop-Lok

Hoffer Plastics Corporation is regarded as a leading Custom Injection Molder specializing in Plastic Packaging components. Hoffer Plastics' Drop-Lok Closure is a wholly owned product line available for numerous applications.

Drop-Lok^® is a Hoffer Plastics Injection-molded polypropylene closure with a patented tamper evidence feature. Ideal for food, juice, liquor, pharmaceutical, chemical and other products. Suitable for glass, PET and HDPE containers. Drop-Lok^® is available sizes ranging from 20mm, 28mm, 33mm, 38mm, and 48mm in a continuous thread (CT). Hoffer Plastics also offers the 43mm closure in the double lead thread (DLT) suitable for most juice applications.

Drop-Lok^® closures can be applied by the following closure application machines:

• Rotary Cap/Head

• Belt Style

• Spinning Wheel

Hoffer Plastics will continue to invest in state-of-the-art injection molding technology to meet your packaging closure requirements.

Sizes:

CT - 20mm, 28mm, 33mm, 38mm & 48mm.
DLT - 43mm

Container Finishes:

CT Glass 1768, PET 1763; HDPE 1787.
DLT PET 1799 VHS

Lining Material:

Hoffer Plastics will insert lining materials which are designed to be compatible with our customer's products and filling environments. All lining materials are approved by the FDA. Foil Heat Seal liners are available at your request as well.

Stock Lining Materials:

Ethylene Vinyl Acetate (EVA).
SS-222 - 3-ply co-extruded foamed LDPE core between two layers of solid LDPE.
The Drop-Lok^® Closure is offered with a Linerless Plug Seal in 20mm and 28mm. In addition, Hoffer Plastics offers a 33mm Wing-Lok^® Tamper Evident Band with a linerless seal.

Decoration:

Customized colors are available. Embossing and debossing are other opportunities for product and brand identification.

Storage and Handling:

Drop-Lok^® must be stored in a clean and dry area. Prior to application, closures must be at room temperature to ensure easy application. Additional heating of the Drop-Lok^® Closure side wall will further enhance ease of application. Closures pallet stacking should not exceed two at one time.