Dear sir,

I did resin infusion process for 175 x 150 mm flat plate in glass and carbon fabric. But I faced huge problem. Here i attached the photos. Kindly help me to solve this problem.

I used Vacuum pump, specification is  630 mm of Hg (or )  24 in Hg. and its dry vacuum pump single stage. Is sufficient to do the infusion process?

Some times plate get good finishing. Some times problem will come (See the photos)

24inhg is a bit low and could well be the cause of the issues you have - or at least part of it..

I presume the dry patches are at the vacuum line end of the mould?  You may also find on such a small sheet, the infusion flows too quickly meaning it skips over the surface without enough time to soak in fully.  You can help this by throttling the resin feed with a line clamp to slow things down.


Warren Penalver
Easy Composites / Carbon Mods - Technical Support Assistant