High weather resistant color coated aluminum coil-Simplified Room

Simplified Room

performance parameter 

Dry film thickness requirement on the front: primer 5 microns, topcoat 20-22 microns

Back recommendation: Primer 5 microns, back paint 5 microns

Color: Color matching services can be provided according to user requirements. Due to weather resistance requirements, some colors need to be replaced with similar colors instead of the standard

Gloss: Gloss is 35+/-5, and other ranges of gloss can be provided according to user requirements

Grid adhesion: no peeling of paint film

T-bend: 3T paint film without peeling off

Reverse impact: 9J paint film without peeling off

Pencil hardness: ≥ 2H (Zhonghua brand 505 coil steel coating hardness testing special pencil)

Resistant to organic solvents: MEK with butanone was wiped back and forth 100 times, and the paint film remained undamaged

Scratch resistance: The probe scratch tester tests a load of 1800 grams, and the paint film has no type of breakage

Moisture and heat resistance: After being placed in a non condensing moisture and heat test chamber for 1000 hours, there are no bubbles, cracks, paint peeling, color, gloss, or hardness changes

Acid and alkali resistance: Soak in 5% hydrochloric acid for 24 hours without significant changes in appearance, soak in 5% sodium oxide for 24 hours without significant changes in appearance

Boiling water resistance: After soaking in 100 ° C boiling water for 2 hours, there is no loss of gloss, discoloration, cracking, foaming, peeling or other phenomena

Acid and alkali resistance: neutral salt spray test for 1000 hours, foaming grade<2S3, no other obvious defects

UV lamp acceleration: OUVA-340 UV lamp test box with 2000 hours of illumination, powdering ≤ level 1, no other defects such as bubbles, cracks, etc. (as per ASTM)

D4214 method evaluation, pulverization not less than level 8)