How to distinguish the genuine from the counterfeit Film TPU PPF?
It’s actually not difficult to determine the authenticity of TPU PPF film. We can start by focusing on these key points:
First, let’s look at the color and texture
True TPU: Transparent or translucent, with good quality even showing a hint of fluorescent blue, and it feels soft and elastic to the touch.
Fake TPU: It is bluish or milky white, sticky to the touch, and prone to fading.
II. Hands-on testing is more reliable
Tensile test:
Genuine TPU can be stretched 5-7 times without breaking and rebounds quickly.
The fake material turns white after being stretched, and it breaks if stretched beyond 30%.
Combustion test:
True TPU burns with an ethanol odor, and the residue is a viscous liquid.
The fake one emits black smoke, has a pungent smell, and produces hard and brittle ash.
Puncture test:
The real TPU cannot be squeezed through with a screwdriver and will return to its original state.
A fake item will break easily with just a slight wear.
III. Don’t overlook the details
Glue smell: Genuine TPU glue is odorless or has a slight odor, while fake ones often have an alcohol smell.
Self-healing ability: True TPU scratches can be repaired within 2 hours under warm water.
IV. Professional Identification
Stretching test: The true TPU coating appears filamentous and uniform after stretching.
Flame retardant test: After burning, real TPU leaves no trace when wiped with a wet towel.
Tips: Choose a reliable brand. Be wary of products with too low a price. If in doubt, seek professional inspection.
