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High Gloss Water Based Saturated Polyester Resin For Can Coating And Coil Coating

Basic Information
Place of Origin: China
Brand Name: WeiLi Resin®
Certification: ISO9001
Model Number: WL-181C
Minimum Order Quantity: 5000KG
Price: Negotiable
Packaging Details: 200kg/drum
Delivery Time: 14 work days
Payment Terms: L/C, T/T
Supply Ability: 500t/month
Detail Information
Appearance: Light Yellow Liquid Solid Content: 75±2
Hydroxyl Value: 115 MgKOH/g Viscosity: ≤200 Mpa.s
Neutral Agent: Non Neutralization Density: 1.142 G/cm3
Type Of Polymer: Waterborne Saturated Polyester Resin
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Can Coating Saturated Polyester Resin


Coating Saturated Polyester Resin


Coating Water Based Polyester Resin

Product Description


WL-181C Water Based Saturated Polyester Resin For Can coatings and Coil coatings




Our water-based saturated polyester resin is supplied in liquid form. WL-181C saturated polyester resin is recommended for sheet metal, can coatings, coil coatings and automotive coatings, and is also used for anti-corrosion coatings on various steel structures.


WL-181C is waterborne saturated polyester resin high performance industrial baking coatings. WL-181C Saturated polyester resin is formed by the reaction of polyacid and polyol, which is characterized by excellent gloss, flexibility and hardness. It is mainly used for can coatings, rolled steel, inks, adhesives, PET rolls, automotive coatings, anti-corrosion coatings for steel structures, and other metal baking coatings.
Due to its high solids content, coatings can be formulated with very high yields, good gloss, adhesion and excellent flexibility.


Wangqin water-based saturated polyester resins are recommmened to used with amino crosslinkers(Cytec 303 and Cytec 305) and our Acid Catalysts ( cross-linking urea and melamine curing system) to make high-temperature stoving paint,the coating film has high gloss, bright transparency, excellent adhesion on different metals, excellent mechanical properties, good  pigment wetting.


Physical Property

Appearance Light yellow liquid With eyes
Solid content 75±2% 30min@120℃
Water dilution Infinite Dilution ----
Hydroxyl value 115 mgKOH/g For solid resin, theoretical value
Viscosity (Brookfield 25℃) ≤200*mpa.s NDJ-79 Rotational Viscometer
Density 1.142 g/cm3 Densitym meter

Viscosity *: after dilution with propylene glycol methyl ether (1:1)


Performance Features

  • High gloss of the coating film, good transparency.
  • High construction solid content, good workability.
  • Can be used for pigment grinding, excellent mechanical stability.
  • Excellent flexibility



  • Mainly used for the preparation of amino stoving paint,
  • Solid color paint, flash paint used in steel drums, wheel hubs, bicycles and electric vehicles and other industries
  • Stoving paints for generally industrial coatings and coil coatings. 


Application Guide

◆ After it 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.



WL-181C High-gloss Black Paint Reference Formulation



Used Resin WL-181C
No. Function Raw material WT(%) Notes
1 Film-forming resins WL-181C 18.24


To prevent the resin from spilling out, stir at 400r/min first, and then stir at 700r/min for 15min after mixing more uniformly, and then continue to add the following materials.

2 Neutralizer DMEA 0.91  
3 Thinner Deionized water 18.24  
4 Defoamer BYK024 0.02  
5 Dispersants EDAPLN 490 1.34  
6 Pigment Carbon black 3.04  
7 Thinner Deionized water 12.00  
  After evenly dispersing, grind fineness ≤10μm, and then filtered
1 Neutralizer DMEA 1.52  
2 Film-forming resins WL-181C 25.16  



Film-forming resins CYMEL 325 12.16 The more amino resin added, the better chemical resistance and harder the paint film; the amount added depends on the actual situation
4 Adhesion promoter Local market 2.92 Generally it is recommended to add it to increase adhesion
5 Thinner Ethylene glycol monobutyl ether 3.88  
6 Wetting agent TEGO 4100 0.19  
7 Leveling agent BYK 346 0.19  
8 Thickener Borchi®Gel 0620 0.19  
  Total   100.00  


High Gloss Water Based Saturated Polyester Resin For Can Coating And Coil Coating 0


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.



Contact Details
WQ Chemical

Phone Number : +8613906014499

WhatsApp : +8619906019236