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Description: 

Matt Hardener XG628 is made for outdoor powder coatings. It has good weather durability, and can be applied in TGIC/polymer system or other similar curing systems. Coatings formulated with XG628 can produce a gloss range from 8% to 40% @ 60 angle with good flow.

Technical data:

Use level

90-110 PHR (based on unreacted epoxy compound)

Appearance

Pale yellow powder

Curing condition

190/15min;200/12min

Application:

1. In the formulation, the ratio of TGIC to polyester should be unbalanced to provide excess TGIC for reaction with XG628.

2. Polyester to react with TGIC may be divided into 3 ratios/type viz. 96:4 (AV: 20), 93/7 (AV: 35) and 90/10 (AV: 50). In low gloss coating based on XG628, we recommend either the 96/4 or 93/7 ratio.

3. The dosage of XG628 inthe range of 90-110 PHR is based on the excess TGIC. Benzoin or hydrogenated caster oil could be used to degas the film and improve the flow.

Suggested formulations:

DSM P5201

50.2wt%

TGIC

7.7wt%

XG628

3.8wt%

R902

20.6wt%

BaSO4

16.2wt%

GLP588

1 wt%

Benzoin

0.3wt%

HCO

0.2wt%

Packaging:

Available in polyethylene-lined, multi-ply paper bags, N.W. 25KGS/Bag.

Storage and Handling:

Store in cool and dry place; keep away from fire; wash with water after operation.
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