Polyester Resins for Powder Coatings - K- 7075 (70/30)

Technical Data Sheet Material Safety Data Sheet

Technical Data Sheet

General Information :

K-7075 is a carboxylated polyester resin designed for hybrid system. It is used with Epoxy resin at the ratio 70:30. This gives a very good flow with good over baking resistance and mechanical properties. It is used in matt finish as well as in structure finish

Product Specifications :
1. Appearance : Solid granules.
2. Colour : Slight yellower.
3. Acid value (mg.KOH/gm.) : 32-36.
4. Glass transition temp. (TG.) ºC : 59 ºC
5. Viscosity @200 ºC : 55-65 ºC

Starting formulation : (Glossy White, Powder coating)

Component Weight
K – 7075
Epoxy resin
Titanium dioxide (R)
Blanc Fix ( filler)
Flow control agent
Benzoin		 420
180
170
216
10
4

APPLICATION PROPERTIES: :

1. Baking schedule : 180 ºC – 10 min. (Metal Temperature)
In air circulated oven.
2. Film Thickness : 50 – 60 microns
3. Gloss at 60 deg. : >95 unit
4. Mechanical (a) Reverse impacts
                      (b) Direct impacts		 : 120 kg-cm.minimum
120 kg-cm.minimum
5. Bend Test (Ø 2 mm) : Passes
6. Over bake Resistance : Passes

STORAGE :

Keep away from heat source & direct sunlight. Avoid temp.more than 30 degree C.

PACKING :

25 kg. Net in paper bag with LDPE bag.