Quality indicators checked by the laboratory:

1. Marking of the profile, the presence of a protective film;
2. shape tolerances and limit deviations of nominal dimensions;
3. weight of 1 meter profile;
4. indicators of appearance, including color (according to the coordinate method), a spectrophotometer device;
5. change of linear dimensions after thermal exposure, the device is heat shrink;
6. Impact resistance at negative temperature — Frost resistance;
7. strength of welded corner joints — TM 560 device;
8. heat resistance;
9. softening temperature according to Vic;
10. tensile strength and modulus of elasticity;
11. Sharpie impact strength;
12. durability;
13. chemical resistance;
14. The adhesion strength of the laminated coating is a Dinomometer device.