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Dr. Md Rushad Rahman
এমবিবিএস(আরপিএমসি)
,
পিজিটি(মেডিসিন)
A pre-filled watercolor brush pen doesn’t need any special cleaning, since it is essentially a marker with a brush tip. However, if you’re using a water brush, you can clean it by filling the tube with clean water and squeezing it out of the chamber, then wiping the bristles on a clean paper towel until the water comes out clear. Use the paper towel or your fingers to smooth the bristles into a neat point, then cap the brush to protect it.
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