Bubbles, Voids and now Ripples???


Bubbles, Voids and now Ripples???
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Gg_knives
Gg_knives
Gg_knives
posted 8 Years Ago
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Hello its me again with some more noob questions on carbon.

I've had a lot of fun so far with making carbon blunders. 

This weeks instalment features the use of the easy composites bristled roller as well as a heat gun with some interesting effects.

So last night after my new roller arrived I was keen to get on with casting another sheet of carbon. The garage was slightly cold so I decided to heat up my mould using a hot air gun till the mould was warm to the touch. 
While laying the carbon each time I used the roller and made several passes.
While applying more epoxy for the next sheet I quickly passed over with the hot air gun and watched as alot of bubbles popped(awesome).
The final change I made this time was adding two extra layers to the stack so 9 x 650g 2/2 twirl. i guessed this would give me a finishing thickness of around 5.5mm once compressed and thought it may help push any bubbles out if I increased the compression force on the stack. 

this is the end result. although beautiful not entirely perfect. anyone know whats happening here? 

https://www.dropbox.com/s/mkciwxh8dpfpj9e/Photo%2012-10-2016%2C%2015%2024%2003.jpg?dl=0

https://www.dropbox.com/s/xa244vcwlksy28u/Photo%2012-10-2016%2C%2017%2006%2043.jpg?dl=0

https://www.dropbox.com/s/36vw3y0ru2f3rjh/Photo%2012-10-2016%2C%2016%2057%2023.jpg?dl=0

The end result seams to have a lot less bubbles in it. there is hardly any pinholes on the surface of both sides although there is some rippling going on. have i put to many layers in and squeezed to much. Thickness actually came out closer to 6mm. 

any help/comments appreciated. gearing up for an infusion set up over the next month or two so more learning and blunders to come.  
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