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Epoxy Powder Coating
The preparation of epoxy powder coating is composed of epoxy resin, curing agent, pigment, filler and other additives. The contribution of these components to the performance of the powder coating is mutual restriction and influence. A suitable formula is actually the result of coordination of various components.
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Product Description
Epoxy Powder Coating
The preparation of epoxy powder coating is composed of epoxy resin, curing agent, pigment, filler and other additives. The contribution of these components to the performance of the powder coating is mutual restriction and influence. A suitable formula is actually the result of coordination of various components.
Technical Parameters of Epoxy Powder Coating
|
Item |
Testing Result |
Testing standard |
|
|
Density（g/cm3） |
1.45 |
GB/T4472-1984 |
|
|
Curing time（200℃）min |
1.5 |
GB/T23257-2017 |
|
|
Gelatinization time（200℃）s |
31 |
GB/T6554-2003 |
|
|
Volatile Content（%） |
0.15 |
GB/T6554-2003 |
|
|
Particle size distribution（%） |
150um 0.26 |
GB/T6554-2003 |
|
|
250um 0.01 |
|||
|
Thermal characteristics |
Reaction heat release△H(J/g) |
71 |
GB/T23257-2017 |
|
Glass transition temperatureTg2（℃） |
105 |
||
|
Item |
Testing result |
Testing standard |
|
Adhesion75℃,24h / Class |
1 |
GB/T23257-2017 |
|
Cathodic stripping（65℃48h,1.5v）/mm |
3.5 |
GB/T23257-2017 |
|
Cathodic stripping（65℃30天1.5v）/mm |
10 |
GB/T23257-2017 |
|
Bending resistance（-20℃,2.5°） |
The coating has no crack |
GB/T23257-2017 |
Application of Epoxy Powder Coating
Epoxy powder coatings are mainly used for anticorrosion of steel pipes and steel components in petrochemical and urban construction industries.
Advanage of Epoxy Powder Coating.
a. The color of epoxy powder coating is uniform without agglomeration
b. The epoxy powder coating has high adhesion to the adhesive of anticorrosive coating
c. The epoxy powder coating has excellent cathodic peeling performance and dielectric strength
d. Epoxy powder coatings have strong resistance to acid, alkali, salt and other chemical corrosion
Transportation and storage of epoxy powder coatings:
a. The epoxy powder coating should avoid exposure to the sun, rain and fire, and the temperature should be≤35℃.
b. Stack height≤5 layers, avoid pressure, ensure airtight, prevent moisture (relative humidity < 75%).
c. The shelf life of epoxy powder coating is 12 months
