How to Seal Caulk to Use Again

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How you continue silicone caulk from drying out is one of the most hotly contested topics amidst contractors and DIY enthusiasts akin. While many tubes of silicone come with a cap, that cap on its own is rarely plenty to keep the air out of the tube once it's opened. Since air speeds up the drying procedure, there are a few tricks you tin can use to plug the nozzle and protect the unused silicone. Keep in listen, even if y'all do get a good seal, the silicone volition still dry out over time. Use your tube of silicone before the expiration date if y'all can.^[1]

1. ane

   Cut a vertical seam on one side of the nozzle with a utility knife. Clean the nozzle off with a rag to remove whatsoever drips. Then, take the tube out of the gun and lay it sideways on a stable surface. Caryatid it confronting the table with your non-ascendant hand. Grab a utility knife and puncture the base of operations of the nozzle with the tip of your blade. Drag the blade up to cut a straight line through one side of the nozzle, all the fashion through the tip.^[2]

   • Y'all're going to re-record the nozzle when y'all use it in the future. This cut won't crusade any future leaks or impairment the silicone or anything like that.
   • Practise not cut all the way through to the other side. What you're doing here is making information technology easier to remove silicone from the nozzle once it dries out. If you lot cut all the fashion through, this won't work.
   • This is probable the near efficient method, but it does require a chip more time than the other options. It's as well likely unnecessary if y'all plan on reusing your silicone tube within the side by side couple of days.

2. 2

   Wrap the nozzle tight with electrical or masking tape. In one case y'all've finished your cut, grab a gyre of electrical tape. Masking record will piece of work as well. Starting at the base, wrap the tape around the nozzle tightly. Keep working your way upwardly to wrap the nozzle in a serial of concentric layers of tape. Leave the very tip of the nozzle open.^[3]

   • When y'all cut the nozzle, you released the pressure inside. Air may take crept inside, so don't tape the tip off simply all the same.

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3. 3

   Squeeze a flake of silicone out to fill up the nozzle entirely. Put the tube back into the caulk gun. Tighten the hook against the back of the tube and indicate the tip on a scrap piece of woods or a newspaper plate. Pull the trigger on your gun once or twice and permit the silicone spill out.^[iv]

   • This will fill in the nozzle with silicone entirely and proceed whatever air pockets from getting trapped inside.

4. 4

   Tape the tip off and shop your silicone. Once you've filled the nozzle out, grab another piece of tape and wrap it over the tip of the nozzle. This will proceed some of the air out, but the good news is that you don't really care if a little air gets inside. Removing any silicone that dries out in the nozzle will be like shooting fish in a barrel as pie.^[five]

   • You can just fold a slice of tape vertically over the tip. Alternatively, y'all can wrap the tip by pulling the record around the opening in a circle and squeezing the adhesive sides together at the superlative. Either option volition work just fine.

5. 5

   Push button the dry silicone out with a screwdriver to reuse it. Once you're fix to reuse the caulk, peel off all of the tape and grab a flathead screwdriver. Virtually the base of the nozzle, button the tip of your screwdriver into the slit you cutting. Employ your screwdriver to pry out the dried chunks of silicone inside of your nozzle. Then, re-tape the nozzle tight with electrical tape to close up the slit and put the tube back into your gun to reuse it.^[6]

   • Yous may get a fiddling resistance at first, but the pressure from the screwdriver should be more than enough to knock the dry silicone out.

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1. i

   Rub a pea-sized drib of petroleum jelly inside the silicone cap. Take the tube out of the caulk gun and gear up it down upright with the nozzle pointing upward. Wipe the nozzle down with a rag to remove whatever silicone. Then, take hold of the cap that came with your tube and fill the within of that cap with petroleum jelly. This will keep moisture from sneaking within of the tube when you put the cap on.^[seven]

   • This is your best bet if your silicone tube came with a cap. Your silicone should stay usable all the way upward to the expiration date. However, if you lost the cap or your tube didn't come with 1, you tin can't really use this method.
   • If y'all simply put the cap on top of the nozzle and leave information technology, the silicone is going to cure to the cap. These caps aren't airtight, then your tube won't exist reusable.

2. 2

   Slide the cap on top of the nozzle. Put the cap on the nozzle the aforementioned way it came with the tube. Push information technology downward and let whatsoever excess petroleum jelly squeeze out from the bottom. Once yous've pushed the cap all the style down, use your finger or a rag to wipe away any excess petroleum jelly that's sticking to the uncapped portion of the nozzle.^[8]

3. iii

   Use electric tape to secure the cap to the nozzle. Take hold of a roll of electrical record and commencement wrapping the record around the base of the nozzle. Work your way upwards in a series of concentric layers until you get to the tip. Advisedly wrap the tip upwardly forth with the rest of the nozzle without lifting information technology off of the opening. In one case the tape fully covers the cap, you can ready the tube aside for storage.^[ix]

   • You lot could effort to use masking tape here, just it may not stick to the tip very well if in that location's whatever residuum from the petroleum jelly on the plastic.

4. 4

   Remove the tape and cap to reuse the silicone. When you lot want to apply the tube once more, skin off the electric tape. The cap should popular right off. Catch a rag and wipe the excess petroleum jelly off of the nozzle. Put it back in your caulk gun and you should exist ready to get.^[10]

   • If the silicone won't come out, take hold of a boom or thumbtack that's thinner than the opening on the nozzle and repeatedly push it into the opening to break the dry silicone up.

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1. 1

   Slide the plastic bag over the tip of your silicone tube's nozzle. Do not accept the silicone tube out of the caulk gun. Wipe information technology clean with a rag and catch a basic plastic bag. Wrap the handbag around the nozzle and let the excess plastic stick out at the sides.^[11]

   • This option tends to work well, although your nozzle may dry out apace if you don't go enough air out of the handbag earlier you seal information technology.
   • Y'all can likewise use a canvass of plastic wrap if you don't have a plastic bag laying around. It's the same process either way.

2. 2

   Button the air out of the bag while leaving a small gap for the silicone. Keep readjusting the handbag and squeezing the tip to button the air out through the base of operations of the nozzle, taking care not to puncture the bag. Leave a small pocket of space between the tip and the plastic bag. In one case y'all've got a small-scale gap congenital up and the excess air is out, use your not-ascendant manus to pinch the bag around the center of the nozzle.^[12]

3. 3

   Squeeze the caulk gun to bulldoze to fill the tip up with silicone. Requite the handle a few gentle pulls to slowly bulldoze some of the silicone out of the tip. Go along your non-dominant manus around the nozzle to proceed it from leaking out and fill the small pocket between the bag and the tip up with silicone.^[thirteen]

   • Silicone will go along pushing out of the nozzle if yous maintain whatsoever pressure, and so unlock the hook at the terminate of the caulk gun to completely relieve the pressure once you lot've got plenty silicone in the bag.
   • So long as the gap between the nozzle and the plastic pocketbook is totally filled with silicone, you're practiced to go.

4. four

   Secure the handbag to the nozzle with a few rubber bands. Keep your non-dominant hand pinched around the nozzle and the purse. Wrap a few rubber bands effectually the middle of the nozzle and the bag a few times to secure it. The silicone that'southward sticking out of your nozzle volition dry out in a few days and block the opening to the tube. This will go along the silicone inside of your tube from drying out.^[14]

   • Unhook the caulk gun or have the tube out of the gun when y'all're done.
   • Be sure to store your caulk tube sideways in one case the bag is tied off. If you store information technology at an bending, more silicone may leak out of the tip, or some silicone from the purse may drip inside of the tube and speed upward the drying process.

5. five

   Remove the handbag and skin off the dried silicone to reuse it. Once y'all're fix to reuse the silicone, have the rubber bands off and remove the plastic bag (information technology may stick a bit to the silicone). Utilize your easily to skin off the ball of dried-out silicone from the tip of the nozzle. Reload your silicone in the caulk gun and get to work!^[15]

   • If it's notwithstanding a little soft and malleable, it'south a good sign that your silicone is ready to get.
   • If the silicone at the tip is totally dried out, you may need to recut the nozzle with a utility knife to make a bigger opening.

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1. 1

   Cull a boom that'south but a hair thicker than the opening at the end of the silicone tube. You can use a screw instead of a boom if you prefer. You lot're going to fill in the nozzle with this nail to plug the opening.^[sixteen] The silicone may dry around the nail, only you'll remove information technology with a bit of strength to clear the blockage.^[17]

   • This doesn't always work if y'all cut the tip of your tube off at a precipitous bending since some air can get into the tube through a gap. Yous tin can cut the tip straight off before using the tube to brand this piece of work better, although you'll cede some accuracy if you're sealing whatsoever corners if you do this.
   • This is probably the nigh popular method among folks in construction, but they tend to go through tubes of caulk fairly speedily. The smash or spiral tin can get stuck to the silicone and information technology can be a big of a pain to get it out if yous shop the caulk for more than a few days.^[xviii]

2. 2

   Slide the blast into the opening at the end of the nozzle. Wipe the nozzle clean with a rag. Then, agree the pointy tip of the blast or spiral over the opening of the nozzle and push button it in. Slide it in a few millimeters until the tapered portion of the spiral or smash catches on the rim of the nozzle.^[19]

   • If the nail goes in all the way without any resistance any, information technology means that your nail is too small. Grab a bigger nail and repeat this process.

3. iii

   Button or tap the smash in as far as it will go and tape information technology up. If in that location's a bit of give, only physically push the nail all the way in. Alternatively, y'all can gently tap the dorsum of the nail with a modest rubber mallet, or flip the tube upside down and push the caput of the nail into a apartment surface to force it in. Push information technology down all the way so that the head of the smash is resting confronting the nozzle. Put a strip of duct record or electrical tape around the tip to keep air from sneaking in.^[20]

   • If you just can't force the nail in and you lot've used your tube more once already, it's a sign that it has already started to dry out. You lot can effort a different method here, just your silicone may not exist long for this globe.

4. 4

   Remove the nail or screw with a bit of strength to reuse the silicone. To reuse the silicone, remove the record and grab the caput of the nail or spiral. Brace the tube with your non-dominant hand and pull the nail out. If you lot need to employ more force, try tugging the boom out with some channel locks or pliers and rip it out carefully. Once it's out, put the tube in your gun and squeeze out any stale-out chunks to become the silicone flowing again.^[21]

   • If you get the screw or nail out just you lot tin can't clasp any new silicone out, some of it has stale within of the nozzle and it's blocking fresh silicone from coming out. Grab a nail that's thinner than your nozzle and poke it inside of the tube repeatedly to suspension the blockage up.
   • Use your caulk before its expiration date. If information technology sits on the shelf for too long, you lot won't exist able to get the nail or spiral out.
   • If the screw or boom won't budge, it's time for a new tube of silicone.

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Add New Question

• Question

  How else can you lot protect your silicone?

  

  Ryaan Tuttle is a Home Comeback Specialist and the CEO of Best Handyman Boston. With over 15 years of experience, Ryaan specializes in home improvement and property maintenance by leveraging engineering science and adroitness. Ryaan holds his Construction Supervisor and Home Improvement Contractor Licenses. Unlike most handyman contractors, All-time Handyman Boston is licensed and insured. Boston Mag and LocalBest.com have named Best Handyman Boston the Best Handyman in Boston.

  

  Habitation Improvement Specialist

  Good Answer

  Hardware companies make small caulking gun "condoms." Yous can purchase a pack of those and put them over the end of your caulking gun.

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• These methods should piece of work for standard caulk also.

• You tin tell if a tube of silicone is done or not by squeezing the torso of the tube. If it's totally hard, the silicone has stale out and you need a new tube. If it'due south a little soft, you should be able to revive it.^[22]

• Keep the silicone somewhere a little cooler when you're storing information technology. There'south some bear witness that keeping silicone at 45 °F (7 °C) or lower may prolong its shelf life.^[23]

• If you're simply trying to keep the silicone from drying out for a few hours, just wrap a bit of record over the tip. It won't cure inside of the nozzle so fast that y'all can't leave it alone for a little bit.

• The less silicone at that place is left in the tube, the faster it will dry. If your tube is less than half full, it may not be worth saving if yous aren't going to employ it soon.

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• Silicon tubes accept expiration dates printed on them. No matter how y'all store the tube, the silicone will dry out out later on that date. Even if you never cut an opening into the nozzle, it will just harden inside of the tube.^[24] Most tubes will dry out 12 months after they've been manufactured.^[25]

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Things You'll Demand

• Rag
• Utility knife
• Electrical or masking tape

• Rag
• Silicone tube cap
• Petroleum jelly
• Electrical tape

• Rag
• Plastic pocketbook or plastic wrap
• Rubber bands

• Rag
• Smash or screw
• Safety mallet (optional)
• Channel locks or pliers (optional)

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