Talk Composites - The Forum for Advanced Composites

Infusion beginer - resin quantities, release issues.

http://www.talkcomposites.com/Topic518.aspx

By jackflash - 2/4/2012 3:50:42 PM

Hi , whats the epoxy amount for

300g diolen                                        

3mm Soric    

all so i have the breather cloth in my infussion kit,but its not mensioned in the video?  do i use it ?

i have a male corner in my mould and have cut the material to fold around it, is it possible to tack down the skicky out bits within the mould, if so what with? 

i am using wax ontop off a pva (polyester resin mould) as a release will this be ok

 

many thanks  
By Matt (Staff) - 2/9/2012 7:58:21 AM

I think a post-cure at 50-60C for your polyester moulds would be a good idea. You can remove PVA using warm soapy water. The wax you can remove using a special Mould Cleaner.

After you've done your post-cure and re-applied the wax and pva, although it's not a 100% gaurantee, you could try applying some epoxy and glass to a small section of your mould, letting it cure and then trying the release. If you have release problems on that small section then you're certainly going to have problems on the full mould. At least this way you don't risk either your full mould or all of the materials to make a full part.

I think given a post cure and sufficient coats of wax you should be fine though.