Fluorocarbon coated aluminum coil-workshop plant

workshop plant

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

Gloss: The standard gloss is 25+1-5

Grid adhesion: no peeling of paint film

T-bend: 1T paint film without peeling off

Reverse impact: 9J paint film without peeling off

Pencil hardness: ≥ HB (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 1000 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 film 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

Neutral salt spray resistance test: 1000 hours, foaming grade<2S3, no other obvious defects

UV lamp accelerated aging test: OUVA-340 UV lamp test box with 2000 hours of illumination, powdering ≤ level 1, no other defects such as bubbles or cracks.

(If evaluated according to ASTM D4214 method, the pulverization should not be lower than grade 8)