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View Full Version : Rust stains on asphalt shigles



Chad Abrams
02-17-2015, 08:15 PM
Can F9 be used on asphalt shingles to remove rust stains? If not what is the alternative? I tried to tag Craig Harrison but realized this is not facebook! Lol

Igor Zaric
02-18-2015, 12:56 AM
Absolutely , 100% safe, quick and with a great results !!! Get some good B/A photos...Call or post with any questions

Doug Rucker
02-18-2015, 08:05 AM
Yes...we use it all the time on shingles. We normally pre wet, apply and let sit about 15-30 seconds and then rinse. Repeat as needed.

Chad Abrams
02-18-2015, 09:08 AM
Thank you for the replies!

Dan Dykstra
02-21-2015, 09:43 AM
Like Doug stated,
pre-wet, apply & let dwell then rinse. We have had great results with it.