Hi,

I´ve made a part by RTM and i´ve got a few problems.

The part is composed by:

-one layer of 2x2 twill carbon fiber 200grs

-one layer of soric 2mm

-one layer of 2x2 twill carbon fiber 200grs



Theproblems that occured are:

-the hexagonal shape of the soric has been printed at the first carbon layer

-this same layer has been a little bit dry, and printed the fibre shape at themould.



Here are few fotos attached for you to take a better look:

http://i675.photobucket.com/albums/vv112/pedcrist/Carbon/Firstlayer_1.jpg

http://i675.photobucket.com/albums/vv112/pedcrist/Carbon/Mould_3.jpg

 

 

 

 

 

Printing:

Because the one side of the soric is "the back", soric can only be used one way, inspect it and you will see that one side is flat and the other has small dimples. The flat side is for the "A" side and lays facing the tool and the dimpled side is the "B" side and faces the back and promotes resin flow.

Run the Infusion/Transfer slightly richer! If your after cosmetic perfection then this is a must!
Also it looks like you have taken the part out of the tool a bit too soon, a good "hold up" of the finish can only be achieved if the cure is 100%. As a rule of thumb I would say that even on the fast hardener in 25 C temp I would leave it in for about 24 hours to be safe...

Dryness:

Run the resin through for a bit longer and also a bit richer. It should sort that out...

Kev.

Thanks for the explanations, Kev!!!

Pedro