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Old 15th April 2010, 05:50 PM   #4
Join Date: Aug 2006
Posts: 537

Bordering the scratches will keep mastic out of clean areas. If you do it well you may not even need to sand it off. Otherwise use 600 grit wet sandpaper and rub very gently. Mastic remains soft for a few hours before hardening so you should not damage the rest of the surface.

Last edited by Farlo; 16th April 2010 at 01:04 AM.
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