Heavy Duty High-Temp Membrane - HD 300 Size


6 reviews

High-Temp Heavy Duty Silicone Membrane cut to size and shape for use with HD model 300 vacuum press.  High definition silicone. Excellent for thermoforming your project. 

  • Size - 35.5" x 23.5"
  • Cut to size and shape for HD model 300 vacuum former
Customer Reviews
5.0 Based on 6 Reviews
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Ryker T.
Great CS

Great CS

Sang L.
There was a small issue,

There was a small issue, but was resolved quickly. Great customer service. I'll be a life time customer. Thank you guys!

Steve D.
Works like it should.

Works like it should.

Alan C.
Great stuff!!! Delivered in a

Great stuff!!! Delivered in a timely fashion

Scott F.
Great purchase. The vacuum press

Great purchase. The vacuum press and curved jig was well worth the investment. Saves time and improves the quality and detail of our holsters.

Darren W.
I am glad I found

I am glad I found you! Thanks a million we will continue to do business

Q: How thick is the silicone membrane?

A: Our silicone is approximately 1/32" thick.


Q: What is the temperature rating?

A: It is rated over 400 degrees.


Q: Would I be able to use it in my heat press over my kydex?

A: It is rated over 400 degrees and should be fine for use on your heat press with kydex.


Q: Can I use a larger membrane than what comes with my HD Vacuum Press?

A: HD vacuum press membranes are not interchangeable between different models. HD Presses are only designed to function correctly with the size membrane made for that specific HD vacuum press model. Using a larger/looser membrane than intended will result in a bad vacuum seal, broken magnets and can potentially damage your press. We recommend selecting a larger HD Vacuum Press if you are running into issues with the size of your workspace or reaching the limits of the membrane. You may also need to revisit how you are forming to see if you can reduce any excess height of your molds.


Q: Does the temperature of the work area affect the membrane? Let's say if my work space is cold but heated up during times of production, would the membrane wear out faster if it's not always warm or would it be more susceptible to tearing?

A: Temperature shouldn't effect performance...unless you are operating in sub zero conditions, this shouldn't factor in to the longevity and pliability of your membrane.