Back Coat Resin - KP-4065

Technical Data Sheet Material Safety Data Sheet

Technical Data Sheet

OIL FREE SATURATED POLYESTER RESIN

Type : Oil free saturated polyester resin
Form of delivery : 65 % in solvent C-9/ Butyl glycol (80:20)

General Information :

KP-4065-B is linear oil free polyester resin developed for use in coil coating, sheet fed metal
decorating and general industrial applications.

Features :

Excellent flexibility with good exterior durability, Good light fastness and humidity resistance Good hardness with stain resistance.

Product Specifications :

1. Appearance : Clear transparent viscous liquid
2. Colour : Pale yellow to water white
3. Acid value (mg.KOH/gm.) : 10 Max.
4. Non volatile matter ( 1 hr @ 150 ºC : 65 ± 2 %
5. Viscosity @25 ºC (4/20 RPM) B.Field : 3000-3600 Cps
6. Hydroxyl value : 140 –160 mg KOH/g
7. Specific gravity : 1.08 ± 0.02
8. Tg : 27.36⁰C

KP-4065-B is usually cross linked with HMM Melamine resins.

The addition of HMMM is usually between 15 – 30% on solid basis. Incorporation of acid catalyst e.g. Para toluene sulphonic acid promotes the curing. 1% to 5% of acid catalyst on Melamine solids is recommended.

The product has excellent pigment wetting properties and high yield pigment concentrates can be formulated.

CURING SCHEDULES :

Coil Coating finishes based on KP-4065-B can be cured using a peak metal temperature of 232°C - 240°C. For Metal Decorating, a cure schedule of 10 minutes at 160 -200°C depending on requirements is recommended; cure response will increase with temperature, but flexibility may be reduced with high levels of catalyst. For General Industrial applications a baking schedule of 30 minutes at 150°C will be suitable. Metal Decorating: 72 : 18 : 10 KP-4065-B Curing of
10 minutes at 160 - 200 is recommended. Aromatic
hydrocarbons are recommended.
General Industrial enamels: 70 : 30 to 80 : 20 on
solids with hexamethoxymethyl melamine resin or
partly methylated melamine with 2% PTSA catalyst
on amino levels. Baking of 30 minutes at 150 C is
recommended. Blend of aromatic hydrocarbon/
alcohol are suggested

STORAGE :

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

PACKING :

210 kg. Net in new MS drums