Dry wall mud dries hard as nails but breaks down fast using white vinegar.
also, we use painters 5 and 1 tools for scraping frames. Keep a supply of green pads bought from the janitorial supply store nearest you. dont touch the glass...it will scratch glass fats! But for paint, stucco and dry wall mud, green pads and goof off are da bomb!
Hi-rise window washers;
Paid to hang out
Best veiw in town
Stay high at work