Thermex® Tactile Surface Temperature Indicating Materials
Thermex Brochure
Packaging World
Thermex® is a unique temperature indicating material. As thin as a standard sheet of paper, Thermex® changes color to reveal relative temperature distribution between any two contacting surfaces. Upon exposure to temperature the Thermex® sheet instantaneously and permanently changes color. The intensity of that color is directly related to the temperature it was exposed to, allowing Thermex® to reveal spot high or low temperature zones. Thermex® is inexpensive, precise and disposable.
Example Areas of use
- Form fill and seal machines
- Ultrasonic welding
- Lamination presses
- Vacuum & Flat Web type machines
Specifications
| Temperature Range | 200° F to 300° F (90° C to 149° C) |
| Dimensions | 18 x 13 (45.7 x 30.5) |
| Thickness | 2 mil (0.05 mm) |
Normal Minimum Heat Seal Temperature
| Low Density Polyethylene | 245° F (118° C) |
| High Density Polyethylene | 285° F (141° C) |
| Polypropylene | 350° F (177° C) |
| Ionomer (Surlyn) | 220° F (104° C) |
| Ethylene Vinyl Acetate Copolymer (12%) | 200° F (93° C) |
| Ethylene Vinyl Acetate Copolymer (18%) | 170° F (77° C) |
