How To Clean Brushes With Paint Thinner In Between Coats
How-To
How to Maintain Your Stop Brush
Acquire how to clean a good brush and you lot'll be rewarded with many years of flawless service.
Learn how to properly clean your finishing brushes in this excerpt from our June 2022 (FWW #212) commodity, The Best Brushes. For even more information, be sure to read function I, which details brush pick for a wide diversity of finishes.
Cleaning Starts Before Yous Brainstorm
So y'all're anxious to meet how your new brush works. Before you dip it in the finish, though, there are a couple of steps to take. Offset, even the best castor may accept ane or two loose filaments (cheap brushes volition have many), so rather than pick hairs out of a wet finish, curve the filaments dorsum and forth with your manus a few times, pulling gently on them. Hold the tip up to the low-cal and remove whatever filaments protruding higher up the rest. Now dip the brush into a solvent that matches the finish you['ll be using and then clasp out the solvent onto a paper towel. This coats the filaments with solvent and makes cleaning the brush much easier when you've finished using it.
| Wet the brush first. Before dipping the castor in finish, moisture the filmanets in a solvent uniform with the finish. This will coat the filaments in solvent and brand cleaning thr brush easier after yous've finished with it. | Dip a toe in. Only submerge nearly a third of the filaments in stop. If you become deeper, information technology is harder to apply an even glaze. As well, finish will tend to pool in the lesser of the castor and then run downwards the ferrule when brushing vertical surfaces. |
Shellac, Lacquer, and Water-Based Finishes Clean Upwardly Hands
Shellac and lacquer: allow it dry.
Brushes used for lacquer and shellac don't need to be cleaned thoroughly. Give it a swish in lacquer thinner or denatured alcohol, shake information technology out, and let it dry hard. When you lot need it again, simply stand it in solvent. Information technology volition be soft and set to use within 30 minutes.
Water-soluble finishes: utilize soap and water.
Use hot h2o and dish lather to remove h2o-based finishes from brushes. Lather, rinse, and repeat two or three times.
Oil-Based Finishes are Hardest to Clean
Let's start with the good news: You don't need to clean the brush if yous plan to utilize information technology again inside 24 hours. Instead, suspend the castor in mineral spirits that have previously been used for cleaning a castor. Keep the tips of the filaments off the bottom of the container so they don't go bent or contaminated with residual.
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| Allow it soak between coats. If they are going to be reused within 24 hours, brushes containing an oil-based stop can be suspended in mineral spirits. Utilise a kebab skewer through the handle to avoid bending the bristles. |
When you're done with the brush, rinse it a couple of times in used mineral spirits, then pure mineral spirits, removing the bulk of the solvent on paper each time. Now rinse the castor in hot soapy water several times before giving it a final cleaning using either citrus cleaner or household ammonia. If you can't smell any mineral spirits on the filaments, the brush is clean and tin be wrapped in paper and put away.
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| Ready for next time. To let any wet escape and at the aforementioned time keep out dust, wrap the brush in brown paper or the original cardboard wrapper. |
TIP: Reuse Your Mineral Spirits
Don't toss it. Afterwards you have cleaned a brush, pour the contaminated mineral spirits into a sealable container. After a few weeks, the remainder will sink to the lesser of the container and yous tin cascade off clean mineral spirits for reuse.
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Source: https://www.finewoodworking.com/2010/08/09/how-to-maintain-your-finish-brush
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