Is a Silicone Bucket Liner Worth It for a DIY Tile Job?
Tiling a few hours at a time means scraping the thinset bucket every time. Tilers and DIYers weigh a fix that lets it set and drop out whole.
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The last tile of the evening is down. It's half past nine and the kitchen floor is a third done. There's an inch of thinset in the bottom of the bucket going hard. Now you carry it out to the back step, in the dark, and scrape.
If you're tiling a kitchen or a bathroom in evenings and weekends, that scrape comes at the end of every session.
Somebody in exactly that spot asked r/Tile whether a silicone liner was a wise buy. They were tiling a whole house on days off. The working tilers argued about it. The DIYers in the thread didn't.
What does a silicone bucket liner do?
A silicone bucket liner is a soft silicone tub shaped to sit inside a standard five-gallon bucket, with volume marks up the side. You mix in it like any bucket. At the end of the session you leave the leftover thinset in it and walk away.
Once the mortar has set, you lift the liner out and flip it inside out, and the block drops off. The liner goes back in the bucket for the next batch.
Several sellers make a bucket liner for thinset under their own name. The maker of one says it's for cementitious products, which is thinset, mortar and the usual cement grout.
Who does it pay off for?
The case for it comes from people in your position. The trade is more split. One DIYer in that thread works a couple of hours here and there, so they never mix much thinset at once.
I'm just a DIY and absolutely love the bucket liner. It's a pain in the ass to be working just a couple hours here and there so I don't usually mix a whole lot of thin set at the same time. Having the bucket liner took like 30 minutes out of my cleanup process.
A DIYer in r/Tile, account since deleted
Another DIYer in the thread did the sums, and they come out differently for you. People doing their own tiling don't get long stretches of uninterrupted work, so they mix more batches for the same floor. More batches, more cleanups. If it saves time, that DIYer reckons, it's a good buy.
Another had tiled about a thousand square feet of their own house over several months, and wished they'd known. For them it was never about the cost of a bucket so much as the time it takes to wash one out properly.
Cold weather and nowhere to rinse make the case on their own. A tiler posting from minus fourteen outside wasn't cleaning buckets out there. A new DIYer in the same thread had nowhere in the yard or on the drive that wouldn't end up an "ugly white splatter zone".
Bergerson Tile & Cabinet, a working contractor on the Oregon coast, puts the whole case in one sentence: "Nobody wants to clean the bucket at the end of the day."
Will thinset stick to silicone?
Mostly it won't, which is the whole point, but not always. The top reply in that thread, from a tiler, has it working with most thinsets and names the exception. Some highly modified thinsets still stick, and Laticrete Platinum is the one called out. Check your bag before you count on the pop-out trick.
That tiler still prefers a plain bucket cleaned well after every use and makes one last for months.
The routine is the same in the replies that like it. Wipe the sides down when you stop for the day and let what's left dry, then pop the block out next morning and mix again.
Someone in a second thread keeps the sides clean all day so there's just a puck at the bottom.
Next morning means next morning. One DIYer with a liner found you have to smash the block out the day after, or it comes out of the bottom piece by piece. Theirs got gunked up with use, and an acid wash brought it back.
Does it wear out? One person says theirs wore out from mixing in it faster than they'd have gone through buckets. No one else in the two threads reports that.
When someone in the second thread asked whether a mixing paddle would cut into the liner, the answer was a flat "No lol".
When is a free bucket the better answer?
The pros' answer, and the top comment in the second thread, which asked about buckets for mixing thinset, is to get them from the painter's. Painters leave stacks of them with dry paint inside. Peel the paint out and they're free, says someone with about sixty in the garage.
If your job is one long Saturday, or you know a painter, that's the better deal. A liner saves you a scrape per session, and one session is one scrape.
A few more cheap ways out, all from the same threads:
- A flexible rubber tub. One owner lets the thinset dry in one, then rolls it, twists it and hits it with a hammer to get it out. Not as easy as silicone, in their words, and theirs cracked after about a year. Another swears by the flexible tubs sold mainly in the UK and Europe, where the set thinset just pops out the next day.
- Disposable liners from a paint store. One person uses those and ruins about two buckets a job. Asked whether the liners tear under a mixer, they've never had one tear.
- A scoop and ten minutes. The DIYer who did the sums above also keeps a rounded drywall knife for scooping out the bucket, and budgets ten to fifteen minutes of bucket and tool washing at the end of every session.
The liner doesn't change the rest of the washing up. You still rinse the trowel, the paddle and the water bucket, and one reply asked what rinsing one more bucket actually saves you. For the DIYer quoted above, it was about half an hour off the cleanup.
Count the evenings you'll be mixing on, because each one is a bucket to scrape, and that's the number to weigh a liner against. A whole room spread over a month of short sessions gets a liner in the first bucket and the block popped out each morning. One long Saturday with a painter's bucket keeps the money and scrapes once.
