What other prepreg do you use?

That looks like our EG60 Tooling gelcoat which with a post cure is only rated to 80C at best.  Certainly the 120C section of the cure will be pushing what it is capable of which may explain the matt finish. 


Warren Penalver
Easy Composites / Carbon Mods - Technical Support Assistant

Extending the soak time can sometimes help for complex shaped moulds or parts with lots of layers.  Ignoring the bridging which is an issue in its own right, was the tooling gelcoat and mould all fully postcured and suitable for a 120C cure?  How many layers of pre-preg were used?


Warren Penalver
Easy Composites / Carbon Mods - Technical Support Assistant

Looks like there is a bit of bridging that wont be helping. I would try moving the temperature probe for a start, I've never ever had good results with the probe sitting on the part. 

What tooling gelcoat are you using??

Hi all,

Im trying the new XC110 prepregs but i seem to get no nice results at all. with other (cheaper) prepregs i get really nice and smooth surfaces.
Here is what the parts look like. The oven was set at the values from the curing data sheet. im using thin mould from tooling gelcoat and epoxy/fiberglass.
The tempsensor was laying on the mould itself. should i try increasing more heat at the soak from 4 hours at 70 degrees?