Appearance: | Light Yellow Solid Particle | Softening Point(ring And Ball Method) ℃: | 100~110 |
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Acid Value (mg.koH/g): | 70~78 | Tg (℃): | 40~60 |
Viscosity(175℃) PA Rheometer (pa.s): | 7~9 | Volatile Matter (wt%): | ≤0.2 |
High Light: | bisphenol a epoxy resin,polyester epoxy resin,Hybrid Coatings Polyester Epoxy Resin |
hybrid coatings
Easy to use, minimal VOC and cost effective, powder coating has emerged in recent decades as a most desirable method for protecting various substrates. Its high transfer efficiency and largely recoverable overspray make powder coating especially suitable for three-dimensional shapes, such as aluminum window frames, household appliances and transportation components.
In combination with suitable epoxy resin in 50/50 ratio, it offers good mechanical properties, corrosion resistance and overall chemical resistance.
Basic performance and application | P5050 is saturated carboxyl polyester resin, in combination with epoxy resin in 50/50 ratio, powder coating made by it has good levelling performance and mechanical properties, high gloss, good decorative property and good yellowing performance, good storage stability. | |
Product technical index | Appearance | Light yellow solid particle |
Softening point(ring and ball method) ℃ | 100~110 | |
Acid value (mg.koH/g) | 70~78 | |
Tg (℃) | 40~60 | |
Viscosity(175℃) PA rheometer (pa.s) | 7~9 | |
Volatile matter (wt%) | ≤0.2 | |
Recommended formula | P5050 | 300 |
Epoxy resin | 300 | |
Pigment filler | 380 | |
Levelling agent | 10 | |
Brightener | 10 | |
Benzoin | 3 | |
Recommended powder making process (twin-screw extruder)
|
Barrel temperature (℃) | 100~125 |
Screw temperature (℃) | 80 | |
Rotational speed (rpm) | 70 | |
Baking condition | 180℃/18min (metal surface temperature) | |
Coating film performance (film thickness 60um) |
Gloss (60℃) % | ≥92 |
Pencil hardness | ||
Impact strength | 50 | |
Bending (2mm) | pass | |
Adhesion (cross-cut method 2mm) | 0-2 | |
Packing and storage | Outer paper bag with inner pigment bag, outer PE bag with inner plastic bag, net weight 25kg per bag, stored in room under 30℃, ventilation, drying, avoid sunshine. |