Can't get a straight line even with masking tape

27 Nov 2016
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United Kingdom
Used this masking tape but still get bits coming through and it's not a straight line. What am I doing wrong? The line I am trying to cut in is in a groove. Anyway to improve what I've already done?
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Forget about the groove. Bring the white down to meet the black a couple of mm below the groove.

The white paint has a heavier texture than the black area. Tape will never adhere correctly to the white but should be ok with the black render. You may get a little bleed under that needs touching in.

Personally I am not a fan of using tape to create lines. I prefer to use a spirit level and pencil to create a line to paint to in those kind of cases but that works best on smooth walls.
Cuboid, are you charging customers for your work and asking how to complete the work with help from a DIY forum?


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