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Moldable silicone rubber

Air-curing moldable silicone putty that transitions from clay into durable, flexible, heat-resistant silicone rubber in 24 hours.

Best for

What Moldable silicone rubber Bonds Best

Doesn’t hold on

Polypropylene (PP), Polyethylene (PE / HDPE / LDPE)

Using it

How to Use Moldable silicone rubber

  1. 01Wash hands and shape the putty by hand within 30 minutes of opening the foil sachet.
  2. 02Press and mold around charging cable strain reliefs, tool handles, or chipped corners.
  3. 03Leave undisturbed at room temperature for 24 hours to complete moisture cure.
  4. 04Resists temperatures from -50°C to +180°C and provides electrical insulation on low-voltage cords.

Questions

Common Questions About Moldable silicone rubber

How does moldable silicone turn from modeling clay into tough flexible rubber?
Moldable silicone is a moisture-curing RTV silicone paste. Once removed from its airtight foil packaging, it reacts with ambient humidity in the air over 24 hours to cross-link into a resilient, waterproof silicone elastomer.
Why is moldable silicone ideal for repairing frayed phone charging cables?
It molds directly around delicate wire neck splits, bonds firmly to TPE and PVC cable jackets, provides electrical insulation for low-voltage electronics (under 24V), and flexes repeatedly without cracking.
What temperature extremes can cured moldable silicone rubber withstand?
Once fully cured, it retains its flexible rubber properties from -58 °F (-50 °C) up to +356 °F (+180 °C), making it dishwasher-safe, boiling-water resistant, and impervious to freezing winter weather.
How much time do you have to sculpt the putty after opening the pouch?
You have about 30 minutes to shape, mold, and smooth the putty with your fingers. After 30 minutes, it begins skinning over and should be left undisturbed for 24 hours to achieve full cross-linked strength.