| Official Luthiers Forum! http://luthiersforum.com/forum/ |
|
| vacuum bag sealant http://luthiersforum.com/forum/viewtopic.php?f=10101&t=27226 |
Page 1 of 1 |
| Author: | wbergman [ Sat May 01, 2010 1:57 pm ] |
| Post subject: | vacuum bag sealant |
What is the best way to seal a heavy duty plastic garbage bag to use as a vacuum bag? I have a vague recollection that some kind of putty can be used, but I do not know what kind. thanks |
|
| Author: | JohnAbercrombie [ Sat May 01, 2010 2:33 pm ] |
| Post subject: | Re: vacuum bag sealant |
I don't know the exact name/product spec, but I use 'mastic tape' which is sold in (some) building supply places for glazing work-applied to the window frame and the glass is pressed against it. It comes in a roll- the mastic strip is about 1/2" wide and 1/8" thick, with paper backing along the mastic strip. It's real 'sticky stuff' and handy around the shop for other uses as well .....(a dab on the end of a screwdriver will hold the screw/bolt in place, etc...) It's quite cheap. I believe other folks have just folded the bag end around sticks and used spring clamps, but the mastic will seal around a hose if you are using a makeshift setup (as I do). Cheers John |
|
| Author: | windsurfer [ Sat May 01, 2010 3:54 pm ] |
| Post subject: | Re: vacuum bag sealant |
One of the products I use for sealing when doing quick-and-dirty vacuum bagging is Frost King Fingertip Rope Calk. It is like the mastic tape listed above, only the 1.25" tape is made of 8 round cylinders about 3/16" diameter. You can use the full width tape, or you can pull off just a couple of the ropes. This stuff is cheap, seals good, and never drys out. If you are bagging small stuff, try using a ziplock bag. cut a small hole to stick your vacuum line in, seal it with rope calk. Then lay up your project, stick in in the bag, zip it closed and start the pump. -jd |
|
| Author: | Bob Garrish [ Sat May 01, 2010 8:04 pm ] |
| Post subject: | Re: vacuum bag sealant |
If using a regular garbage bag, I have a perforated hose I use for getting vacuum in (so it won't self-seal). I toss the hose in, pull the bag around it, and put three zip ties on it. Works like a charm! |
|
| Page 1 of 1 | All times are UTC - 5 hours |
| Powered by phpBB® Forum Software © phpBB Group http://www.phpbb.com/ |
|