I'm working on some CNC cut foam patterns, and after some advise on which products/methods to use to get a suitably surfaced pattern for taking the mould...

The surface isn't perfectly smooth, with many small pockets from the machining process - see attached image (slightly worse in places)

My original plan - (and have ordered these bits) was to use your epoxy coating resin with glass bead & silica and then brush/spray onto the surface - do you think that will be sandable to a suitable surface finish? should I be looking at adding some 163g woven glass over the part? These are largish parts for car bodywork...

Many Thanks,
James

Thanks Matt, appreciate it - I'll wait for it to cure, then try again - will be intesting to see how strong the pattern is with just it's thick epoxy coat - it's pretty strong foam, I can stand on the pattern without damage...

The second try probably was good enough, I just was worried about losing accuracy and definition in the part, does anyone have any pictures of a scrimmed part to help guide my expectations?

James

Hi James,

We'll start filming a new video tutorial series in the next week or so which will start with a guide to pattern making in just the way that you've undertaken. I can't promise when the video will be completed but when it is it should give you a much better idea of the process and what it should look like at each step.

-- Matt

Matt Statham
Easy Composites / Carbon Mods - Technical Sales