Quality Products & Services For Your Custom Needs
Assem-Pak, Inc.
Aluseal, LLC
1649 Castpa Place, Vineland, NJ
P: (856) 692-3355
F: (856) 692-3480

Assem-Pak, Inc. & Aluseal, LLC


Since 2000 Assem-Pak and Aluseal have been providing quality products and services to the pharmaceutical, laboratory and medical device markets. Over the years we have grown carefully and have experienced steady growth by focusing on our customer's needs. We believe in a back to basics approach to business where helping the customer is the cornerstone of success. Our goal is to build strong relationships with our customers through excellent communication and responsiveness while providing the highest level of quality goods and services.

Assem-Pak and Aluseal service small laboratory and biotech companies as well as most large pharmaceutical companies. We have the capability of handling large volume orders but we also understand the needs of smaller companies. We provide small quantity orders at very competitive pricing and have no minimum order quantities so our customers can order what they need without accumulating unnecessary inventory.

Our rubber and aluminum components are made from the highest quality USP tested raw materials. We have developed a strategic partnership with a local company that allows us to offer ready to sterilize and ready to use stoppers. In addition to our rubber and seal capabilities we have also developed relationships with many molded and tubular glass container companies. This allows us to offer our customers a complete package if required.

Aluminum Crimp Seals

Aluseal, LLC manufactures a wide range of custom and standard aluminum closures for the pharmaceutical and analytical markets.

Plain Aluminum Closures

  • Standard Sizes: 13mm, 20mm, 30mm, 11mm, 8mm
  • Custom Sizes
  • Unlimited Color Choices
  • Lacquered Coated
  • Available Configurations:
    • Center Hole
    • Center Tear
    • Full Tear
    • Multi Component
    • Embossed

Flip Caps

  • Standard Sizes: 13mm, 20mm
  • Unlimited Color Choices
  • Center Tear

Lined Seals
Printed Seals
Magnetic Seals

Rubber Stoppers

Assem-Pak, Inc. utilizes state of the art manufacturing process that allows us to offer a wide variety of rubber closures and custom components for the pharmaceutical, laboratory and medical device markets.

Rubber Stoppers

  • Sizes: 13mm to 30mm
  • Styles
    • Snap-On
    • Straight Wall
    • Lyophilization Stoppers
  • Compounds
    • USP Tested
    • Bromobutyl
    • Chlorobutyl
    • Polyisoprene
    • Neoprene
    • Silicone
    • Viton
  • Ready to Use
  • Ready to Sterilize

Laboratory Rubber

  • Septas
  • Sleeve Stoppers
  • Lab Stoppers
  • Microtiter Mats
  • Test Tube Stoppers

Custom Rubber Components

  • Engineering, Design and Tooling
  • Medical Device
  • Custom Lab Components
  • Rubber Bonding to a variety of film and other materials