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Whether you're using acrylic latex caulk to plug up a drafty window or silicone caulk to waterproof a tub, you'll usually end up needing only half a tube at one time. So it's pretty much a given that when you reach for that tube again, it'll be stopped up with dried caulk.

No need to toss a perfectly good (half) tube of caulk, though. There's an easy way to get at the fresh caulk that's trapped behind the dried-up stuff. Read on:

White Lightening acrylic caulking productsSalvage that stopped-up tube of caulk! Photo: White Lightening


1. Grab a nice, sharp utility knife and use it to split the caulk tube's nozzle lengthwise. Always push a sharp utility knife away from you, not toward you. If you want to be extra safe, Consider securing the tube in a vise or c-clamp first. This will prevent a slippery tube from rolling suddenly, causing your grip on the knife to slip too.

2. Use a flat-head screwdriver to pry loose the dried-up caulk. It's likely plugging up the entire nozzle, but chances are the caulk in the tube itself is just fine and usable.

3. Repair the slit nozzle by wrapping duct tape around the nozzle several times.

4. Load the tube into your caulking gun and get to work!

Got any other tips for unclogging a tube of caulk? Share them here!


  • Daniel

    I usually just plug the end of the nozzle with a long nail or even sometimes a phillps head screw to keep the caulk from drying out.

    Reply
  • micky eggs

    when i'm done with the caulkig tube i put a nail down the tube opening and duct tape it so no air gets in. some of my friends simply use a wir nut which also can do the job

    Reply
  • 2 Comments / 1 Pages

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