Power Washing and Roof Cleaning Forum

HHandywork · Exterior Cleaner

Chimney Rust preferred Chem

Art O · Approved Exterior Cleaner

I like F9 on most surfaces. First you have to hit the rust with some pressure to brake the tension. Then a few coats of F9. Keep it wet!

HHandywork · Exterior Cleaner

Thanks Art O when you apply the coats of F9 do you spraying with like 12v pump or garden hose canister or some other method

Brian C Jackson · Approved Exterior Cleaner

Tayib
I like oxalic because I can mix it as needed. Just keep some on the truck. I've been meaning to try some F9

Art O · Approved Exterior Cleaner

HHandywork wrote:
Thanks Art O when you apply the coats of F9 do you spraying with like 12v pump or garden hose canister or some other method

I carry one of them small hand held pump up sprayers from HD. They hold about a 1/2 gallon. I like it because its less waste.

Art O · Approved Exterior Cleaner

Art O wrote:
HHandywork wrote:
Thanks Art O when you apply the coats of F9 do you spraying with like 12v pump or garden hose canister or some other method
I carry one of them small hand held pump up sprayers from HD. They hold about a 1/2 gallon. I like it because its less waste.

https://www.homedepot.com/p/RL-Flo-Master-4-pt-Hand-Sprayer-56HD/100164531?MERCH=REC-_-SearchPLPHorizontal1_rr-_-NA-_-100164531-_-N

Brian C Jackson · Approved Exterior Cleaner

Art
Are those chemical rated.

Zach Maynard · Approved Exterior Cleaner

I like f9 out of convenience and the fact that it works great, but will use oxalic on big areas.

Art O · Approved Exterior Cleaner

Brian C Jackson wrote:
Art
Are those chemical rated.

F9 is from Craig. I keep a case on hand and it lasts me the year https://www.facebook.com/craig.harrison1133?ref=br_rs

HHandywork · Exterior Cleaner

Thank you guys I appreciate the information

DirtyRoofcom · Approved Exterior Cleaner

I've had good success with F9 never tried oxalic acid before. Just remember that you lighten rust stains sometimes you can't remove them 100% make sure you let the customer know

HHandywork · Exterior Cleaner

That is great to know and to inform customer
Thanks Erik

Brian C Jackson · Approved Exterior Cleaner

Always set the customers expected results low. I always tell the customer that i might not be able to get rid of the rust stain.

HHandywork · Exterior Cleaner

Thanks Brian I will be a true professional in no time

Power Wash Store of CPA · Vender

If you need any we sell it and are in PA.

HHandywork · Exterior Cleaner

Thanks next order place

Bryan P · Approved Exterior Cleaner

If it’s dripping onto the roof you just cleaned be sure to rinse the bleach off first.

Art O · Approved Exterior Cleaner

Bryan P wrote:
If it’s dripping onto the roof you just cleaned be sure to rinse the bleach off first.

Good tip Bryan, Mixing S/H and F9 is a big NO/NO

Jim Prom · Approved Exterior Cleaner

We are on Team F9, love all of Craigs chemicals, I have used oxalic acid on white vinyl fence and siding, but still hit the trouble spots with F9 BARC

HHandywork · Exterior Cleaner

All these tips are helpful and noted. I don't ever want to see that chemical reaction show thanks

Steve Salley · Approved Exterior Cleaner

Tayib, Art is so right about that being a serious mistake to mix F9 & Bleach...

Those fumes can kill you! I had a ground tech grab a bucket on the truck that had a little bit of bleach residue in it. He added F9 and made it about 20 feet from the truck with the bucket and dropped to his knees in the yard. I went over and he was sick.

We had no idea what happened until we realized the bucket he grabbed had that little bit of SH in it.

The fumes were wicked and a really odd smell. I am glad both of us are fine, but it was scary to see how quickly those fumes affected Tony...

HHandywork · Exterior Cleaner

Steve, that is very scary how quickly that affected your tech! Warning is noted on being careful with this one. I will be sure to mark this product and designate equipment that use it with! Thanks