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Rubber & Polymer Products

Transportation Gaskets & Seals

Sealing components for tank containers, tank trailers, and bulk transport hardware. Molded, cut, and machined in Rockdale, Texas from compounds matched to the products you haul.

Product Range

Seals and gaskets for tank transport

Whether the requirement is a standard OEM interchange part or a one off built from a worn sample, we produce it in house and hold repeat runs to the same dimensions.

Flange Gaskets

Full face and ring style flange gaskets for tank container and trailer piping. Available in PTFE, PTFE envelope over an elastomer core, and solid rubber.

  • 1" through 8" nominal
  • PTFE, envelope, EPDM, FKM
  • Cut, molded, or machined

Main Seals

Discharge and footvalve main seals built to OEM dimensions for chemical, food grade, and gas service. Consistent compression set and clean release.

  • OEM interchange dimensions
  • Chemical and food grade compounds
  • Molded to print

Manlid Gaskets

Manlid and dome lid gaskets in the standard tank container profiles. Cross sections held tight so the lid seats and releases without dragging.

  • Standard and custom profiles
  • EPDM, FKM/Viton, silicone, PTFE
  • Spliced or endless

Dustcap Gaskets

Dustcap and blank cap gaskets that hold a seal through repeated handling in the yard, in the depot, and over the road.

  • Wear resistant compounds
  • Cut and molded
  • Bulk quantities stocked to order

O-Rings

Standard AS568 sizes and non-standard cross sections for valves, fittings, and ancillaries. Encapsulated PTFE options for aggressive products.

  • AS568 and metric sizes
  • FKM, EPDM, Buna, silicone
  • PTFE encapsulated available

Trailer & Fitting Gaskets

Tank trailer fitting, sight glass, and vent gaskets produced from your sample or print when the original part is no longer available.

  • Reverse engineered from samples
  • Short and long run quantities
  • Print or sample

Materials

Compounds selected for the product

Tell us the product, the temperature, and the desired service life and we will recommend the compound. If you already have a spec, we build to it.

PTFE

Broadest chemical resistance of anything we run. Used for flange gaskets, envelopes, and encapsulated O-rings in aggressive chemical service.

EPDM

Steam, hot water, and many acids and caustics. A common choice for manlid and dustcap gaskets on food and chemical loads.

FKM / Viton

Fuels, oils, and high temperature chemical service where EPDM will not hold up. Good compression set over a long desired service life.

Buna-N

Economical general purpose sealing for petroleum based products and standard trailer hardware.

Silicone

Wide temperature range with FDA compliant options for food grade and sanitary transport.

Specialty Compounds

Metal detectable, low temperature, and custom durometer compounds specified against your product and temperature profile.

Technical

Seals and gaskets are not the same thing

Both prevent leaks, but they do different work. A gasket is a static seal compressed between two flat faces such as a flange joint or a manlid. A seal handles movement, so it has to hold against a part that turns, slides, or cycles open and closed.

That distinction drives the compound and the cross section. A manlid gasket that gets opened and closed hundreds of times needs different compression set behavior than a flange gasket that gets torqued once and left alone. We size and specify both.

Built from print or sample

Send a drawing, a CAD model, or the worn part itself. We measure it, produce the tooling or program, and quote both prototype and production quantities.

  • Reverse engineering from used or damaged parts
  • CAD/CAM drawing and programming services
  • Machining tolerances to ±0.002"
  • Short run prototypes through production volumes