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Hanaldo
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Group: Forum Members
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+x+xOh, apologies, you're correct. Looks like they don't carry it anymore. Didnt notice when it got dropped! Yes, unfortunately we haven't carried it for a couple of years now; we dropped it at about the same time as the silicone coated release ply when we moved over the the VB160 and VB200 that we stock now. I don't know where you'd get a small amount though nowadays unfortunately. Ha! Both products I bought about 5m each of, and still have both sitting mostly untouched on the rack... I can understand why they got dropped 
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BoB_from_jungle
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Hi!
Does anyone can approved that Stretchlon (200, 800 or whatever) works in vacuum infusion? I mean without breaking film or smth like that. Good, reliable result I mean.
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Hanaldo
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Group: Forum Members
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No, it's no good for infusion. Not because it breaks, but because of its stretch. Where the bag needs to stretch into a cavity will slack off and fill with resin as you restore the equilibrium between the pressure outside the bag and the pressure inside the bag.
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Steve Broad
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+x+xOh, apologies, you're correct. Looks like they don't carry it anymore. Didnt notice when it got dropped! Yes, unfortunately we haven't carried it for a couple of years now; we dropped it at about the same time as the silicone coated release ply when we moved over the the VB160 and VB200 that we stock now. I don't know where you'd get a small amount though nowadays unfortunately. Why did you drop it? With a 500% stretchability it seems to be great stuff. There is even a version that appears to be able to withstand oven temperatures. What are the downsides?
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Rich (Staff)
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It just wasn't a particularly high seller. as Hanaldo says above, he has had a 5m pack sitting untouched and that's what we largely saw; small quantties but few repeat orders. In addition, we moved over to a different manufacturer (for the VB160/VB200) and they didn't really have an equivalent. The other thing to watch in infusion as well is that it did have tendency to suck down into the infusion mesh and could block it off.
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Hanaldo
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Group: Forum Members
Posts: 2.5K,
Visits: 28K
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+x+x+xOh, apologies, you're correct. Looks like they don't carry it anymore. Didnt notice when it got dropped! Yes, unfortunately we haven't carried it for a couple of years now; we dropped it at about the same time as the silicone coated release ply when we moved over the the VB160 and VB200 that we stock now. I don't know where you'd get a small amount though nowadays unfortunately. Why did you drop it? With a 500% stretchability it seems to be great stuff. There is even a version that appears to be able to withstand oven temperatures. What are the downsides? It's not as useful as it promises. If you know how to make a vacuum bag with regular bagging film, then those films are tougher and much easier to work with. Strechlon sticks to epoxy, it punctures very very easily, it doesn't stick well to bagging tapes, and it has various issues with infusion etc. About the only thing I have had much use for it with is vacuum bonding.
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Warren (Staff)
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When I first started playing with infusion, I experimented with the stretchy films and it was a nightmare for all the reasons mentioned. Worst was that the infusion would seem ok then suddenly the bag would burst. I found out the bag was going into the open side of the silicone connector then starting to stretch to try and fill the void under the silicone and would keep stretching until it burst. Not to mention the bag stretching over cut mesh edges and slowly bursting and leaking there during the infusion!
Warren Penalver
Easy Composites / Carbon Mods - Technical Support Assistant
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Steve Broad
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Group: Forum Members
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+x+x+x+xOh, apologies, you're correct. Looks like they don't carry it anymore. Didnt notice when it got dropped! Yes, unfortunately we haven't carried it for a couple of years now; we dropped it at about the same time as the silicone coated release ply when we moved over the the VB160 and VB200 that we stock now. I don't know where you'd get a small amount though nowadays unfortunately. Why did you drop it? With a 500% stretchability it seems to be great stuff. There is even a version that appears to be able to withstand oven temperatures. What are the downsides? It's not as useful as it promises. If you know how to make a vacuum bag with regular bagging film, then those films are tougher and much easier to work with. Strechlon sticks to epoxy, it punctures very very easily, it doesn't stick well to bagging tapes, and it has various issues with infusion etc. About the only thing I have had much use for it with is vacuum bonding. So, no real issues, then :-)
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Hanaldo
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Group: Forum Members
Posts: 2.5K,
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+x+x+x+x+xOh, apologies, you're correct. Looks like they don't carry it anymore. Didnt notice when it got dropped! Yes, unfortunately we haven't carried it for a couple of years now; we dropped it at about the same time as the silicone coated release ply when we moved over the the VB160 and VB200 that we stock now. I don't know where you'd get a small amount though nowadays unfortunately. Why did you drop it? With a 500% stretchability it seems to be great stuff. There is even a version that appears to be able to withstand oven temperatures. What are the downsides? It's not as useful as it promises. If you know how to make a vacuum bag with regular bagging film, then those films are tougher and much easier to work with. Strechlon sticks to epoxy, it punctures very very easily, it doesn't stick well to bagging tapes, and it has various issues with infusion etc. About the only thing I have had much use for it with is vacuum bonding. So, no real issues, then :-) No not at all, it is a commercial product used by professionals all over the world for a reason. If it was inherently flawed with defects then it would not be. I just found it not very reliable, and not as useful as a basically infinitely stretchy bag seems on paper, and so never bought any more of it. I'd say a lot of EC's customers came to the same conclusion, and it got dropped from the line-up.
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BoB_from_jungle
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Group: Forum Members
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+xWhen I first started playing with infusion, I experimented with the stretchy films and it was a nightmare for all the reasons mentioned. Worst was that the infusion would seem ok then suddenly the bag would burst. I found out the bag was going into the open side of the silicone connector then starting to stretch to try and fill the void under the silicone and would keep stretching until it burst. Not to mention the bag stretching over cut mesh edges and slowly bursting and leaking there during the infusion! Warren, can you tell me the following Do I need carefully choose the vacuum bag to avoid vac bag bridging or the effect of the vac bag is too small and don't have influence on it? The process is vac infusion Is there any difference between using for example Securlon 500 (elongation at break 350 %) and Securlon L 1000 (500 % at break)? I guess if I want to avoid bridging at the same condition Securlon L 1000 will be better. What do you think?
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