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-   -   Dispensing straws for canned expanding foam (http://www.diychatroom.com/f103/dispensing-straws-canned-expanding-foam-139654/)

Michaelpro 04-08-2012 12:42 PM

Dispensing straws for canned expanding foam
 
Does anyone know of someplace where you can get additional dispenser straws? I have two cans of the stuff but no straws haha.

jklingel 04-08-2012 01:35 PM

no, but if in the future you want to clean a used nozzle, use acetone and hit it right away. then, reuse the nozzle. i suppose you could buy a new can and keep using the one nozzle????? or, snap one off a can on the shelf. kidding.

shazapple 04-08-2012 03:06 PM

I uses a pen with the ends removed. Worked well enough!

DangerMouse 04-08-2012 03:21 PM

Find a job that needs 3 cans, buy one can, then reuse the straw. If you allow it to harden inside the tube, a drill bit or screw will remove the dried plugs and you can put it in a drawer in case it ever happens again.

DM

MLMIB 04-08-2012 06:09 PM

Go to plumbing with a can and find the tubing that fits it. I did this and found 10 ft of tubing that fit the nozzle perfectly for $3 or so and cut off a bit every time I need to use the can. Also good because you can stick the tubing up a void and full as you pull it out. Just be careful if you do this of the pressure from expansion.

Jay 78 04-08-2012 09:11 PM

Quote:

Originally Posted by Michaelpro (Post 894403)
Does anyone know of someplace where you can get additional dispenser straws?

McDonalds, or your kitchen.

If you're talking about cans like Great Stuff, the top of the can that the straw attaches to is threaded, meaning you can twist on any type of straw with an appropriate diameter.

I use the straws out of the hundred-pack I bought at the grocery store, which actually has the dimensions on the box: 7.625" long, .25" diameter. They're what I consider 'standard size' straws.

http://i606.photobucket.com/albums/t...e/P1040170.jpg

alecmcmahon 04-09-2012 03:16 PM

If I don't use a whole can at once, I thread a drywall screw into the top of the straw. This usually " seals it pretty good. Take out the screw next time and foam away.

Michaelpro 04-09-2012 03:46 PM

Quote:

Originally Posted by Jay 78 (Post 894726)
McDonalds, or your kitchen.

If you're talking about cans like Great Stuff, the top of the can that the straw attaches to is threaded, meaning you can twist on any type of straw with an appropriate diameter.

I use the straws out of the hundred-pack I bought at the grocery store, which actually has the dimensions on the box: 7.625" long, .25" diameter. They're what I consider 'standard size' straws.

http://i606.photobucket.com/albums/t...e/P1040170.jpg

This is a fantastic idea. Thanks!

Michaelpro 04-09-2012 03:47 PM

Quote:

Originally Posted by alecmcmahon (Post 895151)
If I don't use a whole can at once, I thread a drywall screw into the top of the straw. This usually " seals it pretty good. Take out the screw next time and foam away.

Using this with the straw idea will work great I think. Thanks!

Jman26063 04-25-2012 02:35 AM

Every time I use a regular straw the pressure from the foam pushes the straw off causing a horrible mess

Windows on Wash 04-25-2012 02:52 AM

The poly tubing in the plumbing aisle of the big box stores work just fine.

Check there.

Jay 78 04-25-2012 07:21 AM

Quote:

Originally Posted by Jman26063 (Post 907001)
Every time I use a regular straw the pressure from the foam pushes the straw off causing a horrible mess

I don't have that problem. What I do to get it started is push down on the base of the nozzle with both thumbs - half of a thumb on the straw, the other half on the base of the can. Once it starts flowing through most of the straw, the pressure is low enough where it won't blow the straw off. This has been my experience with the cans that I've used that have come with pre-broken straws. :(

FWIW, I'm not saying there's no better alternatives, but I mentioned this because straws are something people are likely to already have on-hand.

mikegp 04-25-2012 12:24 PM

I returned my can that was missing a straw and they exchanged it for a new one at HD.

Are you saying if you put a screw in the straw the foam doesn't dry/cure? Seems like it would harden up pretty quickly, but maybe without air it would work.

Tom Struble 04-25-2012 12:32 PM

jury rigging one of those inside a house is scarey

chemman 04-25-2012 06:22 PM

Quote:

Originally Posted by mikegp (Post 907271)
I returned my can that was missing a straw and they exchanged it for a new one at HD.

Are you saying if you put a screw in the straw the foam doesn't dry/cure? Seems like it would harden up pretty quickly, but maybe without air it would work.

If you thread the screw in about 5-6 threads, the stuff in the tip of the straw cures, but the rest reverts to a liquid form. The screw comes out pretty easily taking the cured foam with it. Works great!:yes:


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