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View Full Version : what to use on concrete patio to remove rust stains from metal patio furniture?


bigw
02-03-2008, 11:07 AM
can anyone tell me what to use on a concrete patio to remove rust stains from metal patio furniture? Should i use a chlorine bleach or what? I have a 4000,psi 4gpm cold water pw and a 20'' surface cleaner if this helps with your decision as to what chemical i should use.

bigw
02-03-2008, 03:40 PM
wow thanks for all the responses :laugh:

Happy Frog
02-03-2008, 04:25 PM
Oxalic acid. (F-8)
You can buy it from Bob at http://www.pressuretek.com
Pressure wash first if needed then apply F-8 with sprayer and rince with water after 10 min dwell time.

Don M.
03-20-2008, 03:04 PM
oxalic is great,just dont get a face full from the wind blowing it back...:)

jeffex
03-29-2008, 07:34 AM
muriatic acid available at home depot in garden shop. be careful as it is acid . wear a mask and gloves as the fumes can choke you . pour it on the rust spot. only a small amount is needed and it eats the rust and etches the concrete. then you can powerwash the patio to look even www.deckdoctorpressurewashing.com

FCPWLLC
03-29-2008, 11:30 AM
Third for the Oxalic. Be sure to do entire surface as toy will have very clean areas if done sporadically.