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High-solids, low-VOC formulation suitable for sustainable coating systems.
Excellent compatibility with melamine formaldehyde crosslinkers for durable thermoset networks.
Good flow and leveling characteristics enabling smooth, high-gloss finishes.
Enhanced hydrolytic stability for improved storage life and processing reliability.
Balanced reactivity profile supporting efficient cure at moderate baking temperatures.
Automotive OEM clearcoats and basecoat/clearcoat systems.
Industrial coil coatings requiring excellent formability and corrosion resistance.
Prefinished metal (PFM) coatings for architectural and appliance applications.
General-purpose can and container coatings for food and beverage packaging.
High-performance powder coating binders for outdoor architectural profiles.
| Chemical Type | Saturated polyester resin |
| Product Form | Liquid |
| Appearance | Clear to pale yellow viscous liquid |
| Primary Applications | Thermosetting coatings, especially with melamine crosslinkers |
| Key Features | High solids, low VOC, good compatibility, hydrolytic stability |
| Benefits | Reduced emissions, energy-efficient curing, excellent film formation |
| Recommended Crosslinker | High- or medium-amino melamine resins |
| Storage Conditions | Store in original sealed container below 30°C; avoid freezing |
Q1: What is the primary application field for SETAL 91703 SS-53?
A: SETAL 91703 SS-53 is a solvent-based unsaturated polyester resin specifically designed for high-performance coil coating and metal decorating systems, where excellent gloss retention, flexibility, and resistance to weathering and chemical exposure are required.
Q2: Is SETAL 91703 SS-53 compatible with common crosslinkers used in coil coating formulations?
A: Yes — it is formulated to be compatible with standard amino resins such as melamine-formaldehyde types, and can also be effectively cured with alternative crosslinking agents like blocked isocyanates, depending on the desired performance profile and cure schedule.
Q3: How does SETAL 91703 SS-53 perform in terms of film flexibility and adhesion on pretreated metal substrates?
A: It delivers robust adhesion and excellent bendability on chromated or conversion-coated steel and aluminum substrates, maintaining integrity through standard forming operations such as roll-forming and shallow drawing without cracking or delamination.
Q4: Can SETAL 91703 SS-53 be used in low-VOC or high-solids coil coating formulations?
A: While supplied as a solvent-based resin, its molecular design supports formulation flexibility — it can be adapted into higher-solids systems and contributes to VOC reduction strategies when combined with optimized solvent blends and efficient curing protocols.
Q5: What are the recommended storage conditions for this resin?
A: Store in tightly sealed containers in a cool, dry, well-ventilated area away from direct sunlight and sources of heat or ignition; typical shelf life is 12 months under these conditions, provided containers remain unopened and undamaged.
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E-mail: wangxingqiang@ericwchem.com
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