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2025-01-16 08:38
T-550 is a glyeidyl containing solid acrylie resin designed for applying in low acid value saturated carboxyl polyester powder coatings system as hardener using compatibility difference to achieve matt gloss.T-550’s reactivity and matting performance are both superior than similar products in market, and is more suitable for outdoor matting powder, lt has characteristies as follows: 1. Excellent matting performance with less dosage, normally with only 80% dosage of similar products:2, good mechanical performance;3, more steady gloss, hardly affected by production process and spraying conditions.
Technical index
Appearance |
Transparent granule |
Soft point(℃) |
135-145 |
Epoxy equivalent weight(EEW) |
500-550 |
Solid content(%) |
>99 |
Formula reference
Pure polyester
|
465 |
Matting agent T-550 |
105 |
Hardener T-318/TGIC |
8/12 |
General flowing agent T-988 |
10 |
Benzoin |
3 |
Barium sulfate |
400 |
Black Carbon |
7 |
Catalyst T-62 |
1 |
Curing condition:200℃×10min |
Gloss:2-5% |
Precautions
①Polyester to T-550 ratio is 75/25,when use polyester with acid value between 30-35mgKOH/g.Normally select lower acid value polyester to get cost reduction and more smoothness film appearance.
②HAA curing agent,T-318/TGIC,usually is used to adjust the gloss of finish.In mass production,we always fix the usage of pure polyester,T-550 and catalyst T-62,and only control gloss by T-318/TGIC or primid.
③Using 0.05～0.2%dosage of T-62 in formulations above can make film mechanical performance better, gloss lower and stable,with reduced cost.But when using too much,levelling would be affected.
Package and storage:
Packaging with PE lined Kraft paper bags, Net weight is 25kg per bag. Store in cool and dry place to avoid moisture. According to our experience, the period of validity of this product is at least 2 years when ambient temperature is below 30 ℃.
SuoShi Chemical/Source Chemical professional in R&D,production andsales for powder coatings additives.
With the laboratory in Dongguan,SuoShi Chemical has first-class R&D teamand independent intellectual property rights.
Owning factories in Guangzhou and Yueyang, with total production capacity of 20000 tons/a.
Service institutions are distributed in Dongguan, Shanghai,Chengduand Langfang, with professional group to satisfield customer demands.
Main producer of powder coatings additives for matting agent andacrylic resin.
AS strategic partner for many well-known powder coating enterprisesdomestic and overseas, possibly provide developed solution to satisfiedneeds according to customer.
https://suoshi.en.ibuychem.com/
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