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High-solids, solvent-based acrylic resin offering excellent clarity and gloss retention.
Designed for superior weatherability and UV resistance in demanding exterior coatings.
Provides balanced hardness and flexibility for improved film integrity and scratch resistance.
Compatible with common crosslinkers including melamine and polyisocyanates for thermoset systems.
Delivers consistent rheology and good flow/leveling characteristics in high-performance industrial finishes.
Automotive OEM clearcoats and topcoats.
Industrial maintenance coatings for architectural metal and façade systems.
High-end coil coatings requiring long-term color stability and durability.
Powder coating hybrids and solvent-borne industrial enamel formulations.
Refinish coatings for premium automotive and heavy-duty equipment applications.
| Chemical Type | Solvent-based acrylic copolymer |
| Product Form | Liquid resin solution |
| Appearance | Clear, pale yellow to colorless liquid |
| Solvent System | Xylene / butyl acetate blend |
| Solids Content (wt%) | 50 ± 1% |
| Viscosity (DIN 4, 25°C) | 12–16 s |
| Acid Value (mg KOH/g) | 8–12 |
| Primary Applications | OEM and refinish automotive coatings, industrial maintenance coatings |
Q1: What is the primary function of VIACRYL SC 134 50STD185 in coating formulations?
A: VIACRYL SC 134 50STD185 is a solvent-borne acrylic resin designed primarily as a rheology modifier and film-forming aid. It helps improve sag resistance, enhance leveling, and contribute to balanced viscosity development in high-solids and low-VOC industrial coatings.
Q2: Is this resin compatible with common crosslinkers used in thermosetting acrylic systems?
A: Yes, VIACRYL SC 134 50STD185 is formulated to be compatible with standard amino resins (e.g., melamine-formaldehyde) and polyisocyanates. Compatibility should always be verified in the final formulation due to sensitivity to solvent balance and pH.
Q3: How does this resin affect cure performance and final film properties?
A: It supports efficient crosslinking without significantly delaying cure kinetics under typical baking conditions. Films exhibit improved hardness development, enhanced mar resistance, and good gloss retention—particularly in metallic and solid-color topcoats.
Q4: Can VIACRYL SC 134 50STD185 be used in water-reducible or hybrid systems?
A: While it is a solvent-borne resin, limited incorporation into water-reducible systems is possible with careful emulsification and co-solvent selection. However, full compatibility and stability must be confirmed experimentally—direct substitution for waterborne acrylic thickeners is not recommended.
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