As you said, rinse & dry when you stop. At the end of each day, scrape them on brick or concrete if theres anything still on them, that cleans them up while its all still soft, and rub the rest off with a scraper under running water.
Plastering trowel needs smooth polished edges, and simply using it maintains these. The face doesn't much matter. (Over the years, the face of my plastering trowel and hawk have built up a very thin layer of plaster which doesn't come off, but that doesn't matter.)
If one of the edges gets slightly damaged, traditionally it is polished back up on a brick face. Plasterers used to break in new trowels by using them for rendering to start with (would lend them to the renderer for a week). Nowadays, you can buy trowels which don't need so much breaking in.
I always clean off my tools before it sets (at least, those tools that matter). When plastering, you have to clean off all your tools between each new batch of plaster anyway.
Either dry by hand, or leave to dry such that the critical edges don't sit in a pool of water. Store them indoors in the dry, not out in a shed.
On ebay 120721841438 is stainless at about =A38.69 delivered.
For plaster I would stick to stainless tools, inner & outer & float trowels. It does not cost much more for stainless.
The cheap trowels are ok, they do distort into a bowl, will ripple if provoked and do not like any miss-handling. They are ok for DIY use - ie, do not expect to be using them commercially day in & day out.
On Thursday, January 12, 2012 at 10:50:58 PM UTC, snipped-for-privacy@hotmail.com wrot e:
From what i know on Facebook ,you can purchase leather trowel wallets , to help protect the trowel edges ,From what i understand at trowelwallets.com is you can add little oil to their case also to stop the trowel corroding,p retty cool i think as my mate has same issues .hope it helps !!
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