Talk Composites - The Forum for Advanced Composites

Skinning project went a bit wrong!

http://www.talkcomposites.com/Topic9543.aspx

By Credostar - 2/4/2014 10:44:50 PM

Hi!

A few months ago I've done a project and skinned some plastic parts from under the hood, engine area.

http://www.talkcomposites.com/Uploads/Images/1bcbb114-fc33-411e-bbda-8b39.JPG

I've followed all the instructions but for me the basecoat didn't work at all and it didn't keep the CF fabric on the part at all. As I was applying the resin, the CF just came off from the plastic and the final part doesn't have all the nice lines. My first and only project as I saw that it didn't work on any of the 3 items that I've skinned.

I'm attaching some pictures with how my items ended up from my project:

http://www.talkcomposites.com/Uploads/Images/37967fe8-4e24-46c2-a6c8-2365.JPG http://www.talkcomposites.com/Uploads/Images/1ea5ac7b-ed16-48f3-a787-16d2.JPG http://www.talkcomposites.com/Uploads/Images/395dcf17-697e-45b3-8332-0a2b.JPG

 http://www.talkcomposites.com/Uploads/Images/cf1d180a-e31f-492e-bd29-eda0.JPG http://www.talkcomposites.com/Uploads/Images/5c6201df-6cbd-42ba-8834-44f2.JPG

And the professional items should look something like this:

http://www.talkcomposites.com/Uploads/Images/54215180-b411-4c6c-9769-219a.jpg http://www.talkcomposites.com/Uploads/Images/08869e36-2266-4ada-bdc5-d4a7.jpg

Any idea why the why the CF fabric didn't stick completely on to the plastic and came off as I was applying the resin, why didn't the basecoat hold it proper? Should I have left the CF fabric on to the base coat longer to glue proper?


By Credostar - 2/7/2014 12:26:24 PM

Hi Hanaldo. Before I've started the project I've watched every possible video on the internet regarding CF skinning ... watched the Carbon Mod's video and EasyComposites ones also. Followed the right ratios when mixing but I've found that every time I've put down the basecoat on the 3 parts that I've skinned the basecoat was I think a bit to thin (watery) and wasn't as You said to tacky also. I've used normal CF 2x2 twill weave fabric and not the 'Pro Finish' one as I wasn't too sure if it will be very flexible to go on all the lines.

Yes I do think that with skinning the best way it will be with a vacuum bag because like thatl the material will take all the lines and won't come off.

What kind of bags can You recommend me for skinning, because I saw that on infusion projects they use a few materials also, and won't the bag be glued on to the part also because of the resin?

Thanks