Rubber Heat Resistance: Finding the Right Material

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SUMMARY

This discussion focuses on the search for rubber materials that can withstand temperatures up to 30 degrees Celsius without degradation while being capable of melting for sealing purposes. It concludes that no rubber can melt at this low temperature, suggesting alternatives such as low-melting plastics or strong flexible adhesives. Two-part cold cure silicone casting rubber is recommended for joining rubber sheets, along with super glue and poly-ether polyurethane as potential adhesive options. The conversation emphasizes the importance of selecting the right materials for effective thermal applications.

PREREQUISITES
  • Understanding of rubber properties and thermal resistance
  • Knowledge of adhesive types and their applications
  • Familiarity with silicone casting techniques
  • Basic concepts of injection molding and melting points
NEXT STEPS
  • Research low-melting plastics suitable for thermal applications
  • Explore two-part cold cure silicone casting rubber techniques
  • Investigate the properties and applications of poly-ether polyurethane
  • Learn about the adhesive properties of super glue in rubber bonding
USEFUL FOR

Material scientists, product designers, engineers working with thermal applications, and anyone involved in adhesive technology for rubber materials.

Engn_sam
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I'm not sure if I'm supposed to post this here, if I'm not, I'm sorry.

That being said, what kinds of rubber can be heated up to 30 degrees c without degradation but can be melted. I would like to sandwich a heating filament between two sheets of rubber and seal them together with heat.
 
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I don't think there is any form of rubber which melts at only 30C.
That is just an average daytime temperature in summer for some parts of the world.
You might find some plastics with a low melting point though.

A strong flexible adhesive might be a better way to join rubber sheets, (or a rubber solvent?)
 
Last edited:
I think super glue sticks rubber quite well but isn't very flexible. The glue used to stick a patch on a bicycle tyre inner tube may also work.
 
If cold flow is not an issue, poly-ether polyurethane.
Injection molded, The melt point is over 200 C.
 

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