HDDA (1,6-Hexanediol Diacrylate) Reactive Thinner
CAS Number: 13048-33-4
HDDA (1,6-Hexanediol Diacrylate) is a low-viscosity difunctional acrylate reactive diluent that reduces the viscosity of UV-curable adhesive and coating formulations while contributing to crosslink density and flexibility. Its six-carbon spacer between acrylate groups imparts greater flexibility and elongation compared to shorter diol diacrylates, while its bifunctionality ensures incorporation into the crosslinked network without plasticization. HDDA is widely used in UV adhesives, UV coatings, and printing inks.
Technical Specifications
| color | ≤10 (APHA) |
| purity | ≥98% |
| viscosity | 6–9 mPa·s (25 °C) |
| appearance | Colorless liquid |
| inhibitorContent | 100–200 ppm MEHQ |
Applications
- Viscosity reducer in UV adhesive formulations
- Reactive diluent in UV floor and wood coatings
- Crosslinker and thinner in UV printing inks
- UV PSA formulation component
- Flexible UV coating systems
Key Features
- Very low viscosity for effective dilution
- Difunctional—improves crosslink density
- Six-carbon chain provides flexibility and elongation
- Fast UV reactivity for high-speed cure applications
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CAS Number
13048-33-4
Category
Adhesive / Sealant AdditivesAvailability
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