Epoxy system SR Surf Clear EVO / SD EVO (Fast)

 

Epoxy system SR Surf Clear EVO / SD EVO with fast hardener for translucent laminates

Each kilo includes 0.70 kg resin + 0.30 kg hardener

Surf Clear epoxy system is specially formulated for the manufacturing of wind-surf boards and surf boards. It is adapted for hand lay up of carbon, aramid, glass and HMP fabrics and is compatible with all core materials and foams.

SR Surf Clear EVO resin characteristics:
- Very tough epoxy resin with high thermo-mechanical performance. Recommended for high performance wave and slalom wind surf boards and sandwich (or not sandwich for wave riding surf) construction.
- Creates ultra light composite parts with high mechanical resistance and UV stability.
- For surface preparation / plug finishing, high-gloss requirements.
- Other applications: Jewellery, coating of coloured patterns, prototypes.

 

Surf Clear EVO epoxy resin is manufactured with a bio-based carbon content of about 40%.

 

System characteristics:
- Very good UV stability
- Hardening without tack
- High gloss
- Low viscosity
- Transparency of laminates
- Self leveling
- Scratch resistance

Instructions for application:
Work in a clean environment with heating facility.
Working temperature: 20 ^oC minimum, 35-40 ^oC maximum.
Maintain a constant temperature during lamination.
Avoid high ambient humidity (< 70%).
Avoid exposure to UV during cure. Laminates and coatings have a polymerization cycle of 14 days at 25 ^oC. Post curing offers greater UV resistance.
Do not wet sand laminates or coatings before 4 days at 25 ^oC.
Do not dilute with acetone, ester or alcohol based solvents.
Keep packaging well sealed as hardener is sensitive to carbonic gas and humidity.
A polyurethane paint finish can be applied without primer after sanding the final layer of resin.

PROPERTIES
Physical properties of SR Surf Clear EVO epoxy resin:
Appearance / colour: Light purple liquid
Viscosity (mPa.s) at 20 ^oC: 2925 ± 575
Density (g/cm3) at 20 ^oC: 1,1817

Physical properties of SD EVO Fast hardener:
Appearance / colour: Water clear liquid
Viscosity (mPa.s) at 20 ^oC: 190 ± 40
Density (g/cm3) at 20 ^oC: 1.000

Mix properties of SR Surf Clear EVO / SD EVO Fast system:
Mix viscosities (mPa.s) at 20 ^oC: 2000
Mixing ratio by weight: 100 g / 41 g
Mixing ratio by volume: 100 ml / 50 ml (2 / 1)

Reactivity of SR Surf Clear EVO / SD EVO Fast system:
Exothermic temperature (°C) 150 g mix at 20 ^oC: 225
Exothermic peak time of 150 g mix at 20 ^oC: 15'
Pot life of 150 g mix at 20 ^oC: 8'