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+-- Thread: shellac is gritty (/showthread.php?tid=7353051)
shellac is gritty - weelis - 02-20-2020
I have mixed up a solution of garnet shellac. I have checked the amounts of flakes to alcohol and know that that is correct. I have tried to filter it through paint filters and paper filters. Not much gets filtered through and that that does filter leaves a gritty surface after application. What type of filter material works best for you all out there? Any other suggestions? (I grind up the flakes in coffee grinder) Thanks.
RE: shellac is gritty - fredhargis - 02-21-2020
Puzzling. The shellac that is in the alcohol is completely dissolved. I always have some that doesn't dissolve when I mix it, but it comes out in the paint strainer. Are you sure the surface effect is from the shellac...maybe it's some raised grain? Put some of the shellac on a non wood surface (glass, laminate, whatever) and see if it feels rough.
RE: shellac is gritty - jteneyck - 02-21-2020
(02-21-2020, 06:28 AM)fredhargis Wrote: Puzzling. The shellac that is in the alcohol is completely dissolved. I always have some that doesn't dissolve when I mix it, but it comes out in the paint strainer. Are you sure the surface effect is from the shellac...maybe it's some raised grain? Put some of the shellac on a non wood surface (glass, laminate, whatever) and see if it feels rough.
That's the same as I was thinking - raised grain. It can be pretty rough after the first coat depending upon what wood it's applied to. I sand it back with 320 or 400 grit and then all is well.
John
RE: shellac is gritty - ®smpr_fi_mac® - 02-25-2020
Are you talking about raised grain after the first application? If so, hit it lightly with 220 and apply again. This is typical.