Talk Composites - The Forum for Advanced Composites

Best Epoxy to use to prevent clouding

http://www.talkcomposites.com/Topic21791.aspx

By Shane1985 - 8/11/2016 8:27:04 AM

Hi guys,

So as my research continues, I have seen carbon parts on cars that have faded / clouded due to prolonged sunlight exposure / uv penetration.

What is the best resin to use to prevent this?



Cheers

Shane
By Warren (Staff) - 8/11/2016 5:04:14 PM

Dravis is right with the basics, either you need a resin system with UV stability or apply a coating, be it resin or lacquer after moulding that offers the UV protection you need.

GC50 is best being sprayed onto the mould surface, especially for resin infusion, so if that is not an option for you, then the lacquer is a better option. The reason is the brush strokes in brush applied GC50 causes distortion on the resin infused carbon.

Wet lay you can choose either option as GC50 is fine when brush applied. The carbon will float on top of a thin layer of resin so does not get distorted.

Once the part has fully cured, you will need to key the part and clean/de-grease in preparation for lacquering if you choose that option.