I'm surprised to see 2 plies of 3/4oz mat being that thick! When I was manufacturing carpet cleaning machines we used 4 plies of 1-1/2oz mat and it was exactly 1/8" thick for the main part of the housing and we added 3 additional plies in the area of the vacuum tank (with a urethane foam stiffening rib) that ended up being 1/4" because of the resin barrier. We used a short nap paint roller to wet out our laminate and the recovery tank portion was so strong that it could stop a .38 caliber bullet at 25 yards!
Yeah it surprised me too... but I wasn't shy about adding resin laying it up so I have no doubt it could be thinner! I'm an epoxy guy so this mat and poly stuff keeps me guessing. Smells bad though. Your laminates for the carpet machines sound very well compacted - that's an impressive thickness for four plies of 1.5oz. Don't doubt it can be done with a good laminator on the roller! Was the .38 at 25 yards a standard QC procedure?
@@ExploreComposites I got a call from a customer who accidentally pushed his machine down a flight of stairs, expecting it to be destroyed. Only a rocker switch was damaged and he told me my machines were "bullet proof". That got me thinking, so I took a sample of the laminate from the recovery tank out to a field and shot it with a .38 caliber hand gun and it did leave quite a mark along with some de-lamination, but had it been the actual machine with water in it there would not have been a leak. Right after that my advertising had a caption of "Bullet Proof!"
It could, but it is a heavy way to build thickness. There are carbon chopped mats available - often recycled - that might be better. Also check out the gray Lantor Soric that is an infusion core that blends nicely with carbon visually.
I could share it - not really much to it. The plan is to make full pages for each sample with the spreadsheet there but I haven't got to it yet. I'd share the huge one but it's so messy and has so many scratch-pad notes off to the side that it'd just be confusing. Email me from the EC! site and I'll send you a clean copy if you want. chris@explorecomposites.com
@@ExploreComposites thanks for reply. Love your example videos I ended up binge watching most of them. Given me some good ideas on some methods and materials I want to try. I'm currently building my first plug / mold
hi i planned to make some flexible clear sheet like yours its should be transparent as possible because sheet will act as sort of lens, there are some pre-determined grit on the master mold iam thinking about fiberglass+ clear polyester because it's cheapest my question are what mat(chopped, tissue, woven) should i choose that will give me most clarity?
I am no expert here so this may not be helpful at all, but my understanding is that a fine woven s-glass would be the most optically clear, though a fine e-glass woven would probably be similar. You want minimal fiber bundles. Maybe a few plies of a light glass veil or remay would work too. And there are clear resins used for wood coating, bar tops or surf boards that are very close to clear. Generally I'd go for smallest fibers in smallest bundles - but as a lens, fiberglass may not be a good option. Worth a try though - I've just never seen anybody use it this way before. Have seen fiberglass attempts as windows in boats and it wasn't ideal!
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I'm surprised to see 2 plies of 3/4oz mat being that thick! When I was manufacturing carpet cleaning machines we used 4 plies of 1-1/2oz mat and it was exactly 1/8" thick for the main part of the housing and we added 3 additional plies in the area of the vacuum tank (with a urethane foam stiffening rib) that ended up being 1/4" because of the resin barrier. We used a short nap paint roller to wet out our laminate and the recovery tank portion was so strong that it could stop a .38 caliber bullet at 25 yards!
Yeah it surprised me too... but I wasn't shy about adding resin laying it up so I have no doubt it could be thinner! I'm an epoxy guy so this mat and poly stuff keeps me guessing. Smells bad though.
Your laminates for the carpet machines sound very well compacted - that's an impressive thickness for four plies of 1.5oz. Don't doubt it can be done with a good laminator on the roller! Was the .38 at 25 yards a standard QC procedure?
@@ExploreComposites I got a call from a customer who accidentally pushed his machine down a flight of stairs, expecting it to be destroyed. Only a rocker switch was damaged and he told me my machines were "bullet proof". That got me thinking, so I took a sample of the laminate from the recovery tank out to a field and shot it with a .38 caliber hand gun and it did leave quite a mark along with some de-lamination, but had it been the actual machine with water in it there would not have been a leak. Right after that my advertising had a caption of "Bullet Proof!"
You are the best my man.
What brand of peel ply is being used?
can this fiberglass mat sheet be used as a core?
if possible, I want to try it by coloring it black so the color blends better with the carbon.
It could, but it is a heavy way to build thickness. There are carbon chopped mats available - often recycled - that might be better. Also check out the gray Lantor Soric that is an infusion core that blends nicely with carbon visually.
@@ExploreComposites thank you for the reply, very appreciated!
Is your spreadsheet available to the general public to use? Mainly the template rather than the full library?
I could share it - not really much to it. The plan is to make full pages for each sample with the spreadsheet there but I haven't got to it yet. I'd share the huge one but it's so messy and has so many scratch-pad notes off to the side that it'd just be confusing.
Email me from the EC! site and I'll send you a clean copy if you want. chris@explorecomposites.com
What if you vacuum bag the hand layup wouldn't that be a lot better resin to fiber ratio? More like 60/40
Yes. Several samples here are made this way. Chopped strand mat and polyester aren’t the best choice though.
@@ExploreComposites thanks for reply. Love your example videos I ended up binge watching most of them. Given me some good ideas on some methods and materials I want to try. I'm currently building my first plug / mold
so would you say a gallon is enough to do 5 yards of mat?
Probably - if its 200-300g or 3/4oz mat... but just.
OK :-)
hi i planned to make some flexible clear sheet like yours its should be transparent as possible because sheet will act as sort of lens, there are some pre-determined grit on the master mold iam thinking about fiberglass+ clear polyester because it's cheapest
my question are what mat(chopped, tissue, woven) should i choose that will give me most clarity?
I am no expert here so this may not be helpful at all, but my understanding is that a fine woven s-glass would be the most optically clear, though a fine e-glass woven would probably be similar. You want minimal fiber bundles. Maybe a few plies of a light glass veil or remay would work too. And there are clear resins used for wood coating, bar tops or surf boards that are very close to clear. Generally I'd go for smallest fibers in smallest bundles - but as a lens, fiberglass may not be a good option. Worth a try though - I've just never seen anybody use it this way before. Have seen fiberglass attempts as windows in boats and it wasn't ideal!