45 votes
Accepted

Do I really need to fill the tub with water to properly apply caulking?

While caulk is fairly elastic, it handles better under compression than tension. By filling the tub all the way, you expand the gap quite a bit. Once the caulk is applied and the tub drained, the ...
user avatar
  • 129k
31 votes

Are toilets supposed to be caulked to the floor?

This is a very controversial topic. Some plumbers swear that you must seal the toilet to the floor, while others swear that you should not seal the toilet to the floor. Some guys never do it, some ...
user avatar
  • 129k
22 votes

Sealing space between counter and stainless stove

I use foam rubber weather stripping gaskets: Alternatively, rubber hose works equally as well. Just buy it in a profile slightly wider than the gap, then tuck it in the gap. Friction will hold it ...
user avatar
  • 23.9k
21 votes
Accepted

Why does caulk sometimes escape the back end of the tube instead of the nozzle?

Did you cut the end, but not poke a hole in the seal down the nozzle at the end of the main tube? That seems like the most likely reason for the set of things that happened here. Many caulking guns ...
user avatar
  • 139k
19 votes
Accepted

Should electrical box face plates be caulked?

Definitely don't caulk. Get appropriate (i.e., UL or ETL listed, fire retardant, etc.) foam designed for this purpose, such as this Frost King kit from Home Depot:
user avatar
13 votes

Shower stall base bows downward from body weight, causing caulk to crack

The shower stall has not been installed correctly. The acrylic resin ones do bend when someone steps inside, so the proper way to install them is to put some support below the pan, in the center, to ...
user avatar
  • 7,270
12 votes

Are toilets supposed to be caulked to the floor?

The actual plumbing seal doesn't have anything to do with caulking around the base of the toilet. That's all to do with the wax (typically) ring where the drain pipe and the toilet fit together, and ...
user avatar
  • 5,696
12 votes

Sealing space between counter and stainless stove

Those gaps are rarely sealed because the stove needs to be moveable for cleaning and service. Food will get behind and under the stove, and you'll want to be able to pull it out and clean. If you ...
user avatar
  • 107k
10 votes

Why does caulk sometimes escape the back end of the tube instead of the nozzle?

Most, if not all, caulk guns are equipped with an "opening rod" for breaking the seal in a tube of caulk, silicone, or whatever product you are using. By leaving that seal intact you have ...
user avatar
  • 11.7k
9 votes

Can I decorate this skirting board install?

As for the gaps between the bottom of the base board (skirting) and the floor ... that is normally covered over with a base shoe molding. Base shoe is a small dimension molding that can be pressed ...
user avatar
  • 61.9k
8 votes

How do I finish off a silicone sealant like a professional?

Do not use tape, cut the tube of silicone at a 45 degree angle and apply it as if that is the final application. Now use a ~$5 tool like this*: to spread the silicone. Its triangle has three ...
user avatar
  • 81
8 votes

Can silicone caulk fill a 1cm shower gap?

Can silicone caulk fill a 1cm shower gap? Yes. Just make sure to use a high quality silicone that's mold resistant and won't yellow. Make sure it reaches from one surface to the other. Should I ...
user avatar
  • 11.7k
7 votes
Accepted

Sealing space between counter and stainless stove

There are metal and there are silicone rubber pieces with a T cross section designed for just for this purpose. https://www.amazon.com/Stovetop-Extender-SE24BLA-Oven-Guard/dp/B0027DW4QG. The tops of "...
user avatar
  • 19.7k
7 votes

Bathroom Grout Cracking

It's always recommended to caulk different wall planes at their joints and between tiles and the tub. That's where most of the settling will occur and grout will not adjust or expand. Start out by ...
user avatar
  • 57.4k
6 votes

Grout or caulk between acrylic bathtub and tile?

My Uncle was a plumber, so I called him, before re-caulking my newish bathtub for the 3rd time. I told him that no matter how good a job I did, scraping & cleaning out the old caulk, spraying a ...
user avatar
  • 61
6 votes

Do I really need to fill the tub with water to properly apply caulking?

Depends on the tub, to some extent, and how (or if) it was bedded when installed. Acrylic, fiberglass and thin steel tubs do noticeably deform with a load, especially if not bedded (I'm a fan of the ...
user avatar
  • 139k
6 votes
Accepted

Can I caulk the corner between stone countertop and stone backsplash?

Some general input here as I install granite counters weekly. No way the granite is bound to each other trim piece probably has silicone (I hope) binding it to the wall you don't have to have ...
user avatar
  • 46.3k
5 votes

Should I use caulk to fix cracking grout in a shower?

That should have never been grout, joints between walls and other objects should be caulked because movement in those joints will cause the cracking that you now see, and the cracking can lead to ...
user avatar
  • 42.1k
5 votes

Do I have to remove all caulk before reapplication?

If only a small section of the caulking has opened it may be worth re-applying fresh caulk to them with the hopes that it won't happen anyplace else. Since the repair is small cut out the compromised ...
user avatar
  • 10.8k
5 votes
Accepted

How long does caulk need to dry in a 1" gap?

safe to use the shower is a relative question. when will it be safe to use it so that its use doesn't compromise the caulking seal? never - it was already compromised the moment you did it that way. ...
user avatar
5 votes

Sealing space between counter and stainless stove

As isherwood noted, you don't want to do this in any permanent way. However, there are lots of companies that sell plastic/rubber strips that are meant to fit in this gap. Just Google strip to block ...
user avatar
5 votes
Accepted

Can I use elastomeric sealant intended for roofs to caulk my shower?

It might be marketing, or it might be fact (or both!) but caulking that's designed specifically for kitchen/bath applications has an anti-microbial element. Assuming your existing roofing caulk isn't ...
user avatar
5 votes
Accepted

Replacing tub caulk

"Remove all of it" means entirely remove every trace of old caulk from the areas that you are recaulking. Don't put new caulk on top of old. Establish smooth clean surfaces for the new ...
user avatar
  • 18.8k
4 votes

How do I finish off a silicone sealant like a professional?

Just want to add:I used to use saliva on my finger,like a lot of people,but recently found out that the bacteria in your saliva starts the mold and discolouration,making the nice white bead around ...
user avatar
  • 41
4 votes
Accepted

Do I need to caulk where my vinyl siding meets the edge of my windows?

Agreed with the research you found. Most vinyl siding, if installed correctly, will not require caulk at the sides of the windows and doors. Often there is actually a separate vinyl piece installed ...
user avatar
  • 61.9k
4 votes

What is best way to caulk this improperly installed bathtub?

It looks like this is a tub that is not meant for installation up against a wall. Though it's hard to tell from the photo. Looks like a drop-in tub. Tubs that are meant for installation along a ...
user avatar
  • 4,394
4 votes
Accepted

Can I caulk over cracked grout (shower floor) as a temporary fix?

I'd suggest you get a small tub of premixed grout, a float, a sponge, and spend an hour fixing the problem. Be sure to remove any loose grout. (Something as simple as a utility knife will work for ...
user avatar
4 votes

Do I really need to fill the tub with water to properly apply caulking?

the water pulls the tub to the position it is in when you take a bath the sides slitly deflect and it pulls down from the surround so filling is the best practice to fill the voids and have a longer ...
user avatar
  • 100k
4 votes
Accepted

How to caulking a bathtub with various size edge between wall and tub

Just my thoughts on this: I see mold everywhere, even by the faucet the first thing you need to do is figure out what is behind the tile. If it is drywall you are absolutely wasting your money doing ...
user avatar
  • 46.3k
4 votes
Accepted

Correct order of operations for caulking + sealing bathroom tile?

Those answers are all wrong, I've been a general contractor for thirty years and have had to repair other "experts" work on a regular basis. seal tile first. clean very well with acetone or lacquer ...
user avatar
  • 146

Only top scored, non community-wiki answers of a minimum length are eligible