Issue after sanding

Talk Composites - The Forum for Advanced Composites

Back

Issue after sanding

Author	Message
C4RBON94	C C4RBON94 posted 5 Years Ago HOT Topic Details
C Group: Forum Members Posts: 9, Visits: 25	Hi guy's, Did a hand layup on my part following the guide, but after sanding the resin back before final lacquer, it seems there was a low spot where I've hit the material and taken a chunk out of the part, see images below. Any ideas what's best to repair this? Or is it a case if start again?
	Reply Like 3
scottracing	scottracing posted 5 Years Ago HOT Post Details
Group: Forum Members Posts: 460, Visits: 5.2K	this looks more like you had a bit of a void in the part or bridging and have just sanded out the bubble, I would mix up some resin again and apply to the local area. Let it cure and then sand back.
	Reply Like 3
C4RBON94	C C4RBON94 posted 5 Years Ago HOT Post Details
C Group: Forum Members Posts: 9, Visits: 25	+x scottracing - 5/19/2019 8:01:30 PM this looks more like you had a bit of a void in the part or bridging and have just sanded out the bubble, I would mix up some resin again and apply to the local area. Let it cure and then sand back. Ok so is there a way to replace the missing bits of weave or is that a no go?
	Reply Like 2
Lester Populaire	L Lester Populaire posted 5 Years Ago HOT Post Details
L Group: Forum Members Posts: 311, Visits: 13K	+x C4RBON94 - 5/19/2019 8:11:19 PM +x scottracing - 5/19/2019 8:01:30 PM this looks more like you had a bit of a void in the part or bridging and have just sanded out the bubble, I would mix up some resin again and apply to the local area. Let it cure and then sand back. Ok so is there a way to replace the missing bits of weave or is that a no go? yeah looks like you had a void underneath and sanded trough the carbon. your best bet would probably be to laminate a patch on top of it which will be structurally sound, but visible. for a cosmetic part you can maybe increase the size of the patch and have the cut line on a ledge, where it's way less visible.
	Reply Like 3
C4RBON94	C C4RBON94 posted 5 Years Ago HOT Post Details
C Group: Forum Members Posts: 9, Visits: 25	+x Lester Populaire - 5/20/2019 7:20:17 AM +x C4RBON94 - 5/19/2019 8:11:19 PM +x scottracing - 5/19/2019 8:01:30 PM this looks more like you had a bit of a void in the part or bridging and have just sanded out the bubble, I would mix up some resin again and apply to the local area. Let it cure and then sand back. Ok so is there a way to replace the missing bits of weave or is that a no go? yeah looks like you had a void underneath and sanded trough the carbon. your best bet would probably be to laminate a patch on top of it which will be structurally sound, but visible. for a cosmetic part you can maybe increase the size of the patch and have the cut line on a ledge, where it's way less visible. Ok, it's quite a large part with minimal edges so I'm not sure if there's a clean way to join it as I'm guessing any join lines would show?
	Reply Like 2
Hanaldo	Hanaldo posted 5 Years Ago HOT Post Details
Group: Forum Members Posts: 2.5K, Visits: 28K	Yeh if it has to be invisible then its a start again job. If it isn't an extremely obvious area then I would just neatly laminate a patch over the top and live with some visible lines.
	Reply Like 4
Lester Populaire	L Lester Populaire posted 5 Years Ago HOT Post Details
L Group: Forum Members Posts: 311, Visits: 13K	+x C4RBON94 - 5/20/2019 7:55:16 AM +x Lester Populaire - 5/20/2019 7:20:17 AM +x C4RBON94 - 5/19/2019 8:11:19 PM +x scottracing - 5/19/2019 8:01:30 PM this looks more like you had a bit of a void in the part or bridging and have just sanded out the bubble, I would mix up some resin again and apply to the local area. Let it cure and then sand back. Ok so is there a way to replace the missing bits of weave or is that a no go? yeah looks like you had a void underneath and sanded trough the carbon. your best bet would probably be to laminate a patch on top of it which will be structurally sound, but visible. for a cosmetic part you can maybe increase the size of the patch and have the cut line on a ledge, where it's way less visible. Ok, it's quite a large part with minimal edges so I'm not sure if there's a clean way to join it as I'm guessing any join lines would show? When you put a patch on top try to align the weave which will help to somewhat reduce the visibility...
	Reply Like 3