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Description:
XG620A is a kind of compound matting agent for Hybrid system. The powder coatings formulated with XG620Ahas the excellent impact properties, flowing and yellowing resistance. The application of XG620Ato the 50/50 or 60/40 resin could decrease the gloss effectively.
Technical data:
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Specification
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Measure
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Technical date
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Appearance
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Vision
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Yellowish powder
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Softening point
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GB617-88
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100-140¡æ
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Non volatile
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GB/T 1725-1989
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99% min
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Application:
1. The amount of XG620Ain the formulation is about 1~4%..Smooth matt finishes with 60¡ã gloss values ranging from 2% to 50% can be achieved with XG620A.
2. As the degree of gloss is connected with the resin used, the formulation should be tested in the lab first. Coatings formulated with P6060(DSM), 3#B(SHENJIAN), P2057(WAN AN); CC340(CYTEC) can provide lower gloss and good impact properties.
3. In the formula adding the catalyst such as imidazole to improve the impact properties is not recommended, as which may lead to gloss and flowing change.
4. Baking condition:190¡æ/15min or200¡æ/12min.
Under above condition the gloss and impact properties can be guaranteed.
Suggested formulation:
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NO.
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RM
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Supplier
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Function
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Formula I
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Formula II
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1
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E-12
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SSC
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Epoxy
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28 wt%
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28 wt%
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2
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3#B
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Shen Jian
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Polyester
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28 wt%
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-
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3
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P2057
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Wan An
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Polyester
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-
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28 wt%
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4
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XG620A
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SSC
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Matting agent
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4 wt%
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4 wt%
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5
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GLP588
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SSC
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Leveling agent
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1 wt%
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1 wt%
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6
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Benzoin
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SSC
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Degassing agent
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0.4 wt%
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0.4 wt%
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7
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BLC701
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SSC
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Leveling additive
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0.8 wt%
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0.8 wt%
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9
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Carbon black
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-
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Colorant
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0.6wt%
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0.6 wt%
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10
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BaSO4
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Dong Feng
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Extender
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37.2wt%
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37.2 wt%
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Matting agent dosage
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4 %
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4%
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Gloss (60¡ã)
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3%
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2.5%
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Film thickness (um)
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60-80
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60-80
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Direct/Reverse Impact (kg.cm)
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50
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50
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*Baking condition: 190¡æ/15min.
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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