Cleaning Out Expanding Foam Nozzles - Tools - DIY Chatroom Home Improvement Forum

Go Back   DIY Chatroom Home Improvement Forum > Equipment & Safety > Tools


Thread Tools Display Modes
Old 07-08-2009, 08:07 PM   #1
Join Date: Feb 2009
Posts: 12
Rewards Points: 10

cleaning out expanding foam nozzles

i have several obvious gaps in my house that id like to fill with expanding foam. i dont expect that ill use anywhere near the whole can on the first go. instructions say to clean up unused material with acetone, but not much beyond that.

how do you clean out the nozzle so that the foam doesnt dry inside it?


anervoustwitch is offline   Reply With Quote
Old 07-08-2009, 08:26 PM   #2
I have gas!
Clutchcargo's Avatar
Join Date: Mar 2007
Location: Massachusetts
Posts: 1,975
Rewards Points: 1,374

For Great Stuff, you need to use the entire can at once. Hilti brand has a reusable nozzle.


I tear things down and build them up.
Clutchcargo is offline   Reply With Quote
Old 07-08-2009, 08:50 PM   #3
Join Date: Dec 2007
Location: Baltimore, MD
Posts: 1,802
Rewards Points: 1,000

I think most cans now have a tip where you can bend the straw back and seal it. I don't know how long it will keep, but it won't dry out right away.
jerryh3 is offline   Reply With Quote
Old 07-08-2009, 09:37 PM   #4
Join Date: Oct 2007
Posts: 204
Rewards Points: 150

I set the can aside and give it a fresh squirt into a garbage can every 30 mins or so to keep it from setting up, that still doesn't give you more than one night with it though....

Unrelated but, the GREAT STUFF straws are REALLY easy to break... broke one yesterday just trying to pull it off the celophane packaging on the can, and then another one by tightening it too much... ugh i always have extra cans floating around and can never find a straw.
johnnyboy is offline   Reply With Quote
Old 07-10-2009, 01:43 PM   #5
Mold!! Let's kill it!
Join Date: Feb 2008
Location: Central Pennsylvania
Posts: 2,849
Rewards Points: 2,012

If I plan to save a can, I always blow the nozzle tube out with compressed air immediately and clean the can tip out with a cotton swab dipped in acetone. That seems to work for me.
Maintenance 6 is offline   Reply With Quote
The Following User Says Thank You to Maintenance 6 For This Useful Post:
benjamincall (08-24-2010)
Old 07-14-2009, 10:52 PM   #6
Join Date: Nov 2007
Posts: 23
Rewards Points: 10

If the foam has set up, you can use a length of 12 gauge wire to push the foam out of the straw. First you need to separate the straw from the trigger. It has a barbed end, and the straw should pull right off. The foam doesn't stick to the straw, so it should slide out in one piece. Clean the trigger the same way, re-assemble, then you can use the rest of the can.
Mthrboard is offline   Reply With Quote
The Following User Says Thank You to Mthrboard For This Useful Post:
benjamincall (08-24-2010)
Old 07-19-2009, 07:52 AM   #7
Join Date: Dec 2008
Location: South Western Ontario
Posts: 955
Rewards Points: 500

Or buy dap latex foam if it suits the application Much easier cleanup and better for reuse
Chemist1961 is offline   Reply With Quote
Old 08-10-2009, 06:30 AM   #8
DIY Hack
Mr Chips's Avatar
Join Date: Mar 2008
Location: Location, Location
Posts: 1,306
Rewards Points: 506

Easiest way is to remove the straw, turn the can upside down, point into an old cardboard box, and pull trigger for a couple seconds. Straw can be cleaned with acetone, or compressed air, or you can toss it and just use a piece of poly tubing next time. Hilti, Todal, Foam-o and others do make cans that take a reusable gun. the nice thing is you can use half a can, tighten up a screw on the gun and simply leave it for a day/week/month, then open up the screw and pick-up right where you left off. The downside is the guns ain't cheap, and once the foam does cure in them, they are pretty much imposible to salvage


Mr Chips is offline   Reply With Quote

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

Similar Threads
Thread Thread Starter Forum Replies Last Post
How To Install Rigid Foam Insulation on Concrete earthad1 Building & Construction 9 10-26-2010 09:49 AM
Expanding foam insulation, where to find it in Nova Scotia? tankd0g Building & Construction 6 06-28-2010 04:33 PM
Expanding foam for recessed lighting? integlikewhoa Electrical 23 01-18-2010 09:58 PM
expanding foam flamability BigDogg77 Building & Construction 11 12-03-2008 10:48 AM
D-I-Y expanding foam insulation 4just1don Building & Construction 1 11-29-2008 10:36 PM

Top of Page | View New Posts


Search Engine Friendly URLs by vBSEO 3.6.1