MR. JO JR 5857 – Very Low Viscosity Epoxy Resin for Laminates, Encapsulation & Flooring
MR. JO JR 5857 – Very Low Viscosity Epoxy Resin for Laminates, Encapsulation & Flooring
JR 5857 is a modified, very low-viscosity, solvent-free epoxy resin designed for ambient and elevated temperature curing. Modified with a monofunctional reactive diluent, JR 5857 offers excellent flowability, processability, and versatility across electrical, flooring, and civil engineering applications.
It is similar in performance to Spolchemie CHS-EPOXY 521, providing a trusted and reliable alternative for industries seeking smooth processing and durable cured properties.
Key Technical Data
- Epoxy Equivalent Weight (EEW): 196 – 204 g/eq
- Viscosity @ 25°C: 600 – 900 mPa·s
- Color (Gardner): ≤ 2
- Density @ 25°C: 1.05 – 1.15 g/cc
The very low viscosity ensures easy impregnation in laminates, excellent potting flow, and smooth self-leveling behavior.
Features & Benefits
- Very low viscosity → easy processing for laminates and electrical encapsulation.
- Monofunctional diluent modification → balanced reactivity and flexibility.
- Ambient & elevated cure capability → adaptable to different process requirements.
- Improved flowability → excellent wetting of surfaces and fillers.
- Post-curing option → enhanced mechanical and thermal properties with heat treatment.
- Solvent-free system → eco-friendly, low VOC solution.
Applications
JR 5857 is widely used across electronics, flooring, and civil construction:
- Laminating systems → glass fiber, carbon fiber, and reinforcement impregnation.
- Electrical & electronic potting/encapsulation → insulation and protection of sensitive components.
- Self-leveling epoxy flooring → seamless, smooth industrial floors.
- Solvent-free coatings → protective, chemical-resistant finishes.
- Gap sealing & bonding → structural and civil repair work.
- Old-to-new concrete bonding → rehabilitation and restoration projects.
Why Choose JR 5857?
For industries demanding low viscosity, high versatility, and durable cured performance, JR 5857 is a go-to epoxy system. Its ability to process easily at room temperature, cure under heat for enhanced strength, and perform across electrical, flooring, and construction applications makes it one of the most adaptable epoxy resins in the JPOXY range.
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