✓ color test✓ coating thickness test✓ impact strength test✓ flexibility test ✓ hardness test ✓ density test ✓ adhesion test✓ bending test

✓ analysis of powder fractional size ✓ accelerated weather test✓ color overlay test✓ acid resistance test✓ detergent resistance test✓ yellowing test ✓ scratch test ✓ stone impact test