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Water Based Polyester Resin
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Self-Emulsifying Waterborne Polyester Resin For Baking Metal Coatings

Self-Emulsifying Waterborne Polyester Resin For Baking Metal Coatings

Brand Name: WeiLi Resin®
Model Number: WL-190
MOQ: 1ton
Price: Negotiation
Payment Terms: T/T
Supply Ability: 15t/month
Detail Information
Place of Origin:
China
Certification:
ISO9001
Appearance:
Light Yellow Transparent Liquid
Solid Content:
71±2 %
Viscosity (25°C):
4000-18000mPa.s
Hydroxyl Value (as Supplied):
65-75g/mol
Hydroxyl Value (solid):
95-105g/mol
Packaging Details:
120 Kg/barrel
Highlight:

self-emulsifying waterborne polyester resin

,

waterborne polyester resin for metal coatings

,

baking metal coating polyester resin

Product Description
Self-Emulsifying Waterborne Polyester Resin For Baking Metal Coatings
Product Overview

WL-190 is a self-emulsifying waterborne polyester resin designed for baking metal coatings. Before use, it should be neutralized with DMAE (5-6% of resin amount). Suitable for grinding processes with temperature control below 50°C, and can be formulated with Cymel 303LF or Cymel 327 to create amino baking coatings.

Physical Properties
Properties Units Values
Appearance --- Light yellow transparent liquid
Solid Content % 71±2
Viscosity (25°C) mPa.s 4000-18000
Hydroxyl value (as supplied) g/mol 65-75
Hydroxyl value (solid) g/mol 95-105
WL-190 Self-Emulsifying Waterborne Polyester Resin product sample
Performance Features
  • Outstanding adhesion to metal substrates with stable performance on cold-rolled steel, aluminum, and galvanized surfaces; no obvious flocculation when formulated with zinc-aluminum powder
  • Excellent flexibility; coating film withstands impact and bending without cracking; moderate hardness, and can be cured with amino resins/HDI trimers
  • Better hydrolysis resistance than ordinary water-soluble polyesters; no whitening after 72h water resistance at room temperature; moderate heat-and-humidity performance
  • Good leveling and high gloss; excellent pigment wetting, and not prone to flooding when making solid-color paints
  • Good flexibility and high gloss in coil coating applications
Curing Systems
  • Amino baking coating: Fully methylated amino resin, resin:amino = 100:22-30; 140-150°C/20-30 min
  • Two-component PU: HDI trimer, -NCO/-OH = 1.0-1.1; can be baked at low temperature 80-100°C or force-dried by air
Recommended Applications
  • Waterborne industrial baking coatings: hardware fittings, chassis and cabinets, aluminum decorative topcoats
  • One-coat topcoat/primer light-duty anti-corrosion coatings (indoor environments)
Not suitable for: Outdoor high-weathering resistance applications and long-term water immersion systems