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Discussion Starter #1
I'm painting two walls two different colors, and they're meeting in the corner. I painted the darker wall already, I need to tape to do the lighter color wall....how long do I need to let the dark wall dry before I put tape on it (blue tape)? :(

Hoping for an answer as soon as possible!
 

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Tough one to answer because different kinds of paint dry differently. I like to wait at least 72 hours before doing any masking. What you can do is buy a great cut-in brush and just cut a nice straight line right down the wall in the corner with your other color. Yes, it takes a steady hand and some patience, but it is very doable and you won't have to wait 2 or 3 days.
 

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Rubbin walls since'79
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Use orange core blue ( sensitive) - not all blue is the same. What paint?
usually a couple of hours, lightly put on the blue, paint the edge with the first color, let that dry a bit ( that makes any bleed happen with the same color) and then finish. A fan on it will also speed things up.

72 hrs is a DIY wait- and thats not a bad thing. As a pro I don't have 72 hrs, so i find a way.
 

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get some low tack mask tape 1/2 inch press in to corner make contack but dont press to hard .i have done it in a little as 2 hours . but if you wait till next day you'll be golden:wink:
 

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Discussion Starter #5
Thank you all!!! I am using Olympic paint, eggshell finish. And the tape I have is Scotch 3M Blue Painter's Tape;original multi-surface. I do not want to wait 72 hrs. I may use a fan to speed up the process or (if I haven't fallen to pieces by then) use the cutter brush to do the straight line. Thanks again :)
 

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paper hanger and painter
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Thank you all!!! I am using Olympic paint, eggshell finish. And the tape I have is Scotch 3M Blue Painter's Tape;original multi-surface. I do not want to wait 72 hrs. I may use a fan to speed up the process or (if I haven't fallen to pieces by then) use the cutter brush to do the straight line. Thanks again :)
That is the wrong tape to use here, you really need the sensitive orange core blue tape.
 

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Too Short? Cut it Again!
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The new frog tape is nice too. You will be surprised at the line you can achieve with a nice quality 2.5 or 3 inch angled sash brush though.

The tape Chris mentions will work but I would be nervous putting it on to quickly on a surface painted eggshell with something like Olympic.

If you are uncertain of your painting skills a nice long straight edge you can use as a masking tool would work too since our concern is a right angle corner? Nice long drywall knife or something should work? Just wipe it off between brush strokes.
 
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