Coatings

Ultraviolet absorber KC1310
Basic performance and application
KC531 ultraviolet absorber can obviously prevent the coating film from chalking,cracking,foaming and discoloring early or other aging phenomena due to ultraviolet light.It can obviously prolong the coat is,the better the effect will be.It has no any influence on mechanical property of coating film.Used together with yellow stain resesting agent,the effect will be perfect.
Technical indexes
Appearance:white to light yellow crystalline powder
Melting range:120~130℃
Volatile content:≥99%
Basic ingredients of powder coating(outdoor white high light powder)(dose:0.3-0.5% inner extruding)
Name: :Weight
Polyester resin(pure) 600
Titanium pigment(rutile) 200
Precipitated barium sulfate 150
TGIC: 45
T531 ultraviolet absorber 5
T317 yellow stain resisting agent 10
T88 pure leveling agent 10
T701 luster-enhancing agent 10
T307 yellow stain resistant benzoin 5
Coating manufacturing technology:
Extruder:double screw extruder
Extruder prezone temperature 115°
Extruder postzone tempurature 125°
Extruder speed: 30HZ
Baking tempurature:180/℃15min or 200℃/10min
Basic performance of coating film:film thickness of 60~80 μm
Impact strength(positive and negative):50kg/cm passed
Pencil hardness: ≥ 2H
Glossiness （60°。 angle):≥ 90°
Bending( Φ2μm): passed