Talk Composites - The Forum for Advanced Composites

Film adhesive for honeycombe core materials

http://www.talkcomposites.com/Topic18896.aspx

By Toffee - 7/29/2015 8:59:58 PM

Hi all,

I am making sandwich panel and i am looking at making the carbon skins first and then sticking each layer to either side of a nomes honeycomb core material. I have thought of four options here >

1. make the outer skins, key the back of them paint brush resin on to the skins and stick either side of the honeycomb, then vacuum
2. make the outer skins, key the back of them soak the honeycomb in resin and stick either side of the honeycomb, then vacuum
3. make the outer skins, key the back of them adda 400g pre-preg layer to the back of the skins and stick to the core, vacuum, oven…

4. same as options 1 & 2 but instead of using resin use a film adhesive, question is where can i get this from, is there different weights of adhesive if so which is most suitable and where do i get it from??

hope you can help,
Lee.
By VVS - 11/11/2015 8:01:48 PM

Did a part using nomex just last week and had a play about before committing.

I found brushing gave me variable resin thickness and ended up using one of the small paint rollers that are used for gloss paint (not the emulsion roller) and this worked really well.

I put a layer of nomex down covered in a layer of peel ply and a layer of breather cloth,

I was expecting the cloth to take up some resin but nothing and the nomex was rock solid so very little resin/extra weight was added.