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    • Indoor anti-yellowing matting T-338A

    Introduction：
    T-338A is a wax-free, resin-based in-house anti-yellowing matting agent for epoxy/polyester powder coatings. The ratio of T-338A to epoxy curing is about 2/1; the addition of T-338A is 1-5%, which can provide matting powder with a gloss of more than 2%. Its characteristics are low gloss and good storage stability.

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    Anti-yellowing matting agent for interior powder coating T-338A
    1.Description
    T-338A is a wax-free, resin-based in-house anti-yellowing matting agent for epoxy/polyester powder coatings. The ratio of T-338A to epoxy curing is about 2/1; the addition of T-338A is 1-5%, which can provide matting powder with a gloss of more than 2%. Its characteristics are low gloss and good storage stability.
    2.Typical physical data
    Appearance pale yellow powder
    Soft range(℃) 100-120
    Bulk density (g/l) 500-600
    Solid content (%) >99
    1. Suggested formula
    Epoxy E-12 295 320
    50/50polyester 245 220
    Levelling agent T-988 10 10
    Leveling Additive T-701 10 10
    Matting Filler 414 394
    Carbon black 6 6
    Matting agent T-338A 25 50
    gloss 8% 1.5%
    Curing condition: 200℃×10min
    4.Characteristics
    ①To obtain lower matting finish, normally select 50/50 polyester with slowly reactivity, as better mechanical performance and storage ability.
    ②According to difference dosage in formula, excess epoxy/T-338A could be adjust to get suitable gloss and film appearance.
    5.package and storage:
    Packaging with PE lined Kraft paper bags, Net weight 25kg per bag. Store in cool and dry place to avoid moisture. According to our experience, the shelf life of this product is at least 2 years when ambient temperature below 30 ℃.

     

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