Sea Bulk® Thermal Liner

Sea Bulk® Thermal Liner


This container liner is specifically designed to be loaded and discharged with the entire rear door access open. This is an ideal liner for products such as wine, because its thermal properties help to prevent temperature fluctuation. This liner has also been used to ship products with oppressive odors. The thermal properties keep the odors from permeating into the container. Other common applications are for the protection of packaged goods on pallets, loose loaded mineral products or to prevent damage to the container from the product being shipped.

Ideal For The Transport Of:

Packaged goods on pallets, Wine, Napthalene, Fertilizer, Animal Feed or products with similar characteristics


Proprietary four layers of laminate on HPDE woven material

Loading System:

Forklift, Bucket Loader or Conveyor System

Discharge System:

Forklift, Bucket Loader or Tilt

Liner Options : Discharge/Material/Bulkhead

Discharge Assistance Options

Powertex offers two different style angles to aid the end user at the time of discharge to help move forward any remaining product in the liner.

Two styles of angles available at this time:

  • Inflatable Angles
  • Plywood Angles

Further specifications are available upon request.

Material Options

All Powertex Sea Bulk® liners are available in various material types. The type of material that will be required for your application will all depend on the type of product that you are shipping and the various characteristics that it has.

Examples of Materials:

  • FDA approved virgin grade fully extruded 5.5 mil polyethylene film with metallocene
  • FDA approved virgin grade fully extruded 7 mil polyethylene film
  • Anti-static polyethylene film (available in both conductive and dissipative)
  • Polyethylene/Polyethylene Terephthalate (PE/PET)
  • Polyethylene or polypropylene woven material in various grades (70GSM – 230GSM)
  • Aluminum laminate (metalized) woven material
  • Powerfoil (for use with products that require oxygen and moisture barrier properties)
  • Fully extruded polyethylene film with flame retardant properties

NOTE: Material specifications and material samples are available upon request.

Sea Bulk® Bulkhead Options

Powertex has two bulkhead options. The type that you would require would all depend on the type of product that you are shipping in a Powertex liner.

Style 1: Corrugated Bulkhead

Available in single wall, double wall and triple wall corrugate. This bulkhead is required for those high density free flowing products.

Style 2: Flexible Woven Bulkhead

Made with 210 GSM woven material. This bulkhead is used for those light and medium density free flowing products.

Liner Accessories : Manifold/Metal Bar/Loading

Manifold Options

Powertex also manufactures custom made Manifolds that are used in conjunction with some of our liners to aid in the discharge of the product.

Manifolds Available:

  • One door closed discharge manifold (24″)
  • Center discharge manifold (31″)
  • Widemouth discharge manifold (fishtail/tundish)
  • Vacuum discharge fitting manifold (6″)
Metal Bar Options

Metal bars available:

  •  Industry standard metal bars
  •  Adjustable metal bars
  •  Galvanized metal bars
  •  Painted metal bars
Metal Bar Specifications

Powertex® Part Number: AC-011

Metal bars are used for the bracing of the rear bulkhead of the Sea Bulk® Liner.


  •  LENGTH: 94.50″ / 240.03cm
  •  WIDTH: 1.5″ x 1.5″ / 3.81cm x 3.81cm
  •  MINIMAL WALL THICKNESS: 11 gauge or .125″ / .3175 cm or 3.175mm
  •  MATERIAL: Structural Steel Tubing

Note: Powertex, Inc. recommends that a minimum of 3 to 4 metal bars are used to brace the rear bulkhead and that they are installed prior to loading.

Loading & Unloading Options

Powertex offers many different types of loading and unloading spout sizes and configurations. The type of spout required for the loading and unloading of your product will be determined by the type of loading and unloading equipment being utilized.

Load Opening Options:

  • Standard  3” · 8” · 13” · 16.5” · 22” · 25.6” · 27.6”· 31” Diameter Spouts
  • Zippered openings for Conveyor Loading

NOTE: Location and length for all loading spouts are customized to customer’s specifications

Discharge Opening Options:

  •  Standard 3” · 8” · 13” · 16.5” · 22” · 25.6” · 27.6”· 31” Diameter Spouts
  •  Single and double layer spouts
  •  Polyethylene Film or Woven Membrane and Non-membrane spouts
  •  6″ Threaded Fitting
  •  Polyethylene Film or Woven Fishtail spout
  •  Polyethylene Film or Woven widemouth spout

 NOTE: Location and length of all discharge spouts are customized to customer’s specifications