Air bubbles/voids under resin


Author
Message
LukeSGee
L
Forum Guru (69 reputation)Forum Guru (69 reputation)Forum Guru (69 reputation)Forum Guru (69 reputation)Forum Guru (69 reputation)Forum Guru (69 reputation)Forum Guru (69 reputation)Forum Guru (69 reputation)Forum Guru (69 reputation)
Group: Forum Members
Posts: 9, Visits: 44
Hi all,

After solving many issues , I've come across another which is causing me headaches. I'm currently having issues with what seems to be voids or air bubbles between my resin and the fabric. It appears these voids become more apparent the more I sand the part for a smooth finish

Photo is attached. It seems the more I sand the part, the more of these bubbles that show. They are under the surface though 

Apologies for the poor photo quality. You can see the defects on the left hand side of the part

Replies
Matt (Staff)
Matt (Staff)
Composites Expert (Staff) (8.4K reputation)Composites Expert (Staff) (8.4K reputation)Composites Expert (Staff) (8.4K reputation)Composites Expert (Staff) (8.4K reputation)Composites Expert (Staff) (8.4K reputation)Composites Expert (Staff) (8.4K reputation)Composites Expert (Staff) (8.4K reputation)Composites Expert (Staff) (8.4K reputation)Composites Expert (Staff) (8.4K reputation)
Group: Forum Members
Posts: 680, Visits: 1.9K
Like Buchado says, it would be helpful to know what process you are using to make these parts. Looking at the plastic clip configuration that I think I can see on the reverse of the clip I guess you might be skinning the parts? I.e. overlaying them with a layer of carbon and resin? As always, the more information you can provide about your process, materials and working conditions, the easier it will be to try to figure out what the problem is.

Matt Statham
Easy Composites / Carbon Mods - Technical Sales
LukeSGee
L
Forum Guru (69 reputation)Forum Guru (69 reputation)Forum Guru (69 reputation)Forum Guru (69 reputation)Forum Guru (69 reputation)Forum Guru (69 reputation)Forum Guru (69 reputation)Forum Guru (69 reputation)Forum Guru (69 reputation)
Group: Forum Members
Posts: 9, Visits: 44
Matt (Staff) - 2/17/2020 7:50:59 AM
Like Buchado says, it would be helpful to know what process you are using to make these parts. Looking at the plastic clip configuration that I think I can see on the reverse of the clip I guess you might be skinning the parts? I.e. overlaying them with a layer of carbon and resin? As always, the more information you can provide about your process, materials and working conditions, the easier it will be to try to figure out what the problem is.

Thanks for the replies guys and apologies for the little detail! 
 This was done with skinning using XCR resin and Pro finish fabric
My resin was around 5c when I mixed it as it was left in the shed but when mixed , I heated it up with a heatgun untill the bubbles disappeared and the resin went thinner.
Then the part was left inside to cure at around 20c
Cheers 

GO

Merge Selected

Merge into selected topic...



Merge into merge target...



Merge into a specific topic ID...





Similar Topics

Reading This Topic

Explore
Messages
Mentions
Search