Wonderflex Heat-activated Composite Plastic Sheet

USD $13.90USD $61.00

This is a heat-activated, formable polyester plastic sheet that is very popular in making prop armour and other rigid costume pieces.

SKU: 59000 Categories: , , Tag:


So you want to build some costume armour, and the cardboard (as fun as it is) isn't just doing the job anymore. Our dabblings into the world of stage productions has revealed to us the material wonderflex.

It's formally described as "heat-activated, self-adhesive scrim-reinforced polymer". What that means is that it's a stiffish sheet of plastic with a reinforcing layer that you use a heat gun to bend, mold and stick to itself. When it cools, it's tough, but still flexible, and is easy to finish and dye with standard techniques..


  • Polymer-based construction material
  • Heat activates pliability and adhesion (hot air, oven, microwave, steam and hot water all work)
  • Scissor/razor cuttable
  • One side smooth, the other textured (you choose which side you want to work with)
  • Reheatable for reshaping
  • Relatively lightweight
  • Sticks very well to itself
  • Can be glued to most other porous materials like wood, paper, foams, fabrics and Fosshape


  • Polyester-based chemistry
  • 1mm thick
  • 70-80°C (150-170°F) activation temperature
  • 60~90 second layout time


  • Full sheet: 1.39 x 1.09M (55 x 43")
  • Half sheet: 109 x 68cm (43 x 27")
  • Quarter sheet: 68 x 53cm (27 x 21")
  • Eighth sheet: 53 x 33cm (21 x 13")
  • Sample: 33 x 25cm (13 x 10")


Additional information

Weight 0.5 kg
Dimensions 139 × 106 × 0.1 cm


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Warning: This product contains chemicals known to the State of California to cause cancer and birth defects or other reproductive harm.
Please visit www.P65Warnings.ca.gov for more information. This item was manufactured prior to August 31, 2018.

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