WL-182A Waterborne Saturated Polyester Resin
Introduction
WL-182A is a water-based acrylic modified saturated polyester
resin, which is used with melamine-formaldehyde resins CYMEL 325 or
Cytec 303 to make high-temperature stovin varnish or silver paint.
The coating film has high gloss and good fullness, and has an
orientation effect on the arrangement of silver powder.
Composition:
Water-based acrylic modified saturated polyester resin, cosolvent
Physical Property
| Appearance | Light yellow liquid | With eyes |
| Solid content | 72±2% | 30min@120℃ |
| Water dilution | Infinite Dilution | ---- |
| Hydroxyl value | 100 mgKOH/g | For solid resin, theoretical value |
| Viscosity (Brookfield 25℃) | ≤200*mpa.s | NDJ-79 Rotational Viscometer |
Viscosity *: after dilution with propylene glycol methylether (1:1)
Performance Features
- Good resin stability;
- Low cost, low VOC;
- Excellent shear stability, can be directly used for grinding color
paste;
- High solid content, high gloss and good fullness of the coating
film;
- Excellent mechanical stability;
- Good orientation of silver powder and can be used for flash paint;
- Excellent adhesion on metal substretes;
- Pigment wetting, high gloss.
Applications
Application Guide
◆ After WL-182A is neutralized with N, N-dimethylethanolamine( 5~6%
of the resin), it can be directly diluted with water.
◆ Add methylated amino resin (20%-30% of the resin) for baking and
curing. The baking temperature is above 120°C. The baking
conditions and paint film properties are related to the amino resin
used. When it used with the fully methylated amino resin, an acid
catalyst (0.5-1% of the resin) must be added, and the baking
temperature must be above 140°C.
◆ It is a water-dilutable saturated polyester resin, which can be
infinitely diluted with deionized water.
◆ The pH value can be adjusted with organic amine or ammonia water,
and the viscosity of the emulsion will increase with the increase
in pH value.
Storage Condition
Store the product in a cool and dry place, the recommended storage
temperature is 0~40℃. The shelf life is one year. After the
expiration date, if the test passed, it still can be used.
Special Tips
This material is complied according to our existing technology and
experience, the technical advice provided is sincere, but it is not
guaranteed to be used in all samples and formulations, all the data
are for users reference only.
