easier vacuum bagging?

[Aksrockets]

Ive watched vacuum videos and vaccum bagging seem similar to a vacuum storage bag set up. Like these. With a few mods would this work?

you would put your entire vacumm bagging setup (tube that you're glassing, wetted out FG, Peel ply, and bleeder absorber film) into it and turn the vacuum on. Of corse i would need to create some sort of filter to keep the epoxy from flowing into the vacuum.
with 3 of these bags only costing $5, is it worth a try?

[rdbones]

My thought is that you would wind up with a ton of wrinkles!!!

[jderimig]

Save money. Use this..

http://www.glad.com/products/food-st...ess-n-seal-40/

[JimJarvis50]

Ive watched vacuum videos and vaccum bagging seem similar to a vacuum storage bag set up. Like these. With a few mods would this work?

you would put your entire vacumm bagging setup (tube that you're glassing, wetted out FG, Peel ply, and bleeder absorber film) into it and turn the vacuum on. Of corse i would need to create some sort of filter to keep the epoxy from flowing into the vacuum.
with 3 of these bags only costing $5, is it worth a try?

A quick Google search reveals that a typical vacuum cleaner suction pressure is on the order of about 6" Hg. That would do some good, but would come up well short of what a vacuum pump would provide (25 to 30" Hg).

The bags for vacuum bagging aren't very expensive.

Jim

[Pat_B]

I do a lot of vac-bagging & found the vac-pumps used in the HVAC industry to work the best. You can get a pump like that for about $100 on Ebay.

I did a lot of experimenting with shop vacs and found that I could only pull 6-8HG which isn't nearly enough for good consistent results.

[Wayne's World]

I get 27-29" vacuum on our pipe extrusion lines at work, but we use 8 hp pump motors @ 240 VAC, which may not be feasible for most people. It will be difficult to get over 12" Hg on 110 VAC. Most Shop-Vac motor/pump combos only give about 6-8" Hg, which really isn't enough for vacuum bagging.

[Pat_B]

http://www.ebay.com/itm/Robinair-155...item4840d7e3db

I have an older version of a 5cfm Robinair vac pump. I need 5cfm for vacu-forming because the plastic cools down quickly. However, for vac-bagging, you aren't in that much of a hurry and could use one of their smaller capacity pumps.

Check Craiglist. You shoudl be able to find a smaller model for about $100 used.

[troj]

If you want a cheaper form of vaccuum bagging, for smaller parts, get a Food Saver. Works great for laminating fins and bulkheads.

For body tubes, if you want something that's semi-effective, you can use basket wrap from a craft store. Better is shrink tape. Better yet is vaccuum bagging.

-Kevin

[Adrian A]

The bags for vacuum bagging aren't very expensive.

Jim

Especially when they're lawn and leaf garbage bags with a knot in the end, which is my favorite kind.

[JDcluster]

Try this link from John Coker's awesome web site:
http://www.jcrocket.com/kitchenbagging.shtml

I've used it with success.


JD