Wrinkling in laminating tubing!

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Wrinkling in laminating tubing!

Author	Message
Zorongo	Zorongo posted 10 Years Ago HOT Post Details
Group: Forum Members Posts: 40, Visits: 330	ajb100 gave the reason fast and clear, variation of OD. You can use the shrink tape for a first / partial consolidation without wrinkles.. And then make a good vacuum for a complete consoidation and curing. tape is cheap and it will take just an extra 10 minutes.. Mind not to heat resin too much so that is partialy cured before vacuuminig. good luck
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ChrisR	ChrisR posted 11 Years Ago HOT Post Details
Group: Forum Members Posts: 363, Visits: 3K	It's always handy having the pump, you'll use it on other projects The tape just needs the tape and a heat gun or oven to make it shrink.
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whereismillar	whereismillar posted 11 Years Ago HOT Post Details
Group: Forum Members Posts: 10, Visits: 31	Thanks guys! Have used peel ply and have been very careful applying all layers but will let you know if i find a solution to this ! the tape sounds good but feel at a loss buying an expensive pump... cheers! W.I.M
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ChrisR	ChrisR posted 11 Years Ago HOT Post Details
Group: Forum Members Posts: 363, Visits: 3K	It might be better to try a shrinkwrap tape carefully wrapped around the layup rather than vac bag. something like this https://www.easycomposites.co.uk/composites-shrink-tape or http://www.ecfibreglasssupplies.co.uk/p-3180-shrink-tite-tape-32mm-wide.aspx
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Matthieu Libeert	Matthieu Libeert posted 11 Years Ago HOT Post Details
Group: Forum Members Posts: 955, Visits: 3.4K	like above if you are making tubes and the CF isnt tight against the tube it will start to wrinkle, It's very hard to get it right, adding peelply to pull everything tight can help, or a piece of vacuumbag Matthieu Libeert Founder MAT2 Composites X Sports website: www.mat2composites.com
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whereismillar	whereismillar posted 11 Years Ago HOT Post Details
Group: Forum Members Posts: 10, Visits: 31	i used 0.10 x2, and one of 0.20 carbon cloth 3 layers in total! I was led to believe that vacuum bagging a repair this way was the best way to go ? Edited 11 Years Ago by whereismillar
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ajb100	ajb100 posted 11 Years Ago HOT Post Details
Group: Forum Members Posts: 346, Visits: 4.4K	How thick is the layup? When you vac bag tubes, the OD shrinks under the pressure and you can can folds in the carbon. It is increased with thickness as you put it on tight, apply vac and all the layers compress creating the wrinkle
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whereismillar	whereismillar posted 11 Years Ago HOT Post Details
Group: Forum Members Posts: 10, Visits: 31	hi chris I actually waited 2 days before demolding the wrinkles in the carbon match the initial wrinkles that formed in the bagging film when turning on the pump, i waited till the resin left in the mixing pot was solid before turning off the pump curing was done in a box at roughly 35 degrees for the whole time the pump was on, cheers! Edited 11 Years Ago by whereismillar
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ChrisR	ChrisR posted 11 Years Ago HOT Post Details
Group: Forum Members Posts: 363, Visits: 3K	How long after the initial cure did you demould? Some epoxies require an on mould postcure and others can be post cured off the mould. If it distorted during the post cure it sounds like either the resin wasn't cured enough before initial demould or it softened during the postcure and the forces from the vac bag have caused the distortion. Pictures should tell all but that was my initial thoughts on it
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Matthieu Libeert	Matthieu Libeert posted 11 Years Ago HOT Post Details
Group: Forum Members Posts: 955, Visits: 3.4K	Ok, I'll wait for some images Matthieu Libeert Founder MAT2 Composites X Sports website: www.mat2composites.com
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