THINK


The Heroine who shares my life had been defrosting the freezer and was using the plastic scraper to finish it off,
I found an old one checked the blade was straight and true and used it instead of the stencil. PERFECT,
Ensure the work is firmly located, then place the blade of the scraper at an angle against where the straight line is going and using a trailing brush slowly go for it,
Lift the scraper up and toward the work,( in this case the flash,) when finished.
You will obviously need to measure in advance how far the line goes but the scraper is large enough to take care of most lines and yet small enough to get in to tight spaces and you can always trim it smaller if needed.
shaun.