Use in shaded, well vented area at room temperature (60 - 80ºF or 16 - 27ºC). Use natural bristle brush to apply a liberal coating over paint or varnish to be removed. Allow to rest on surface until existing paint is penetrated - this takes between 15 minutes to 2 hours. After the surface is thoroughly scraped clean, reapply to remove residual paint or wipe surface with Captain Phab Acetone.