Stuborn Stains on EFIS at Piggly Wiggly - F9 maybe the answer?
Gregg Austensen said
Mar 17, 2013
Cleaned the grocery store front EFIS with a 2% and it cleaned up well except of the streaking below the sign letters. In fact it looks worse now that the surrounding EFIS is clean. I'm guessing that the stains aren't organic but corrosion from the signs. Plan to hit it with a 1to1 of F9 BARC and elbow grease. How long should I let it dwell? Any thoughts on this this one guys?
-- Edited by Gregg Austensen on Sunday 17th of March 2013 09:41:46 PM
I'd use F9 2:1 (2 parts BARC to 1 part water) and spray on with pump or electric sprayer. I'd mist it onto a dry surface, allowing the product to dwell for a few minutes. It's ok if it dries, just hit it with low pressure, warm water (105-125 degrees) and rinse well. I think F9 will be your best bet.
-- Edited by Craig Harrison on Sunday 17th of March 2013 09:56:14 PM
Gregg Austensen said
Mar 18, 2013
Thanks Craig! Is the warm water an absolute or just helpful?
Craig Harrison said
Mar 18, 2013
You're welcome. The warm water is just helpful, not mandatory by any means.
Doug Rucker said
Mar 18, 2013
What are those stains Craig?
Gregg Austensen said
Mar 18, 2013
Doug I think it's oxidation leaching from behind the signs as water drains from them. The 2% didn't put a dent in them. Didn't want to up the mix either as it was painted stucco and was worried I'd start stripping the paint.
It was tough working at midnight as the parking lot lights wash out the stains and it was impossible to tell until the next day if I had success.
Since I'm not only stop cleaning the stains I plan to do it when there's some sunlight.
Dan Dykstra said
Mar 18, 2013
I hear quite a bit about cleaning after hours (at night) has anyone put lights on their rig to help light up the work area. On our plow trucks we run rear blades and have lights that light up everything behind us. There are some very bright LED lights out that have very little draw on the battery but light up the night very well. I am just wondering because I myself will be doing some of this after hour cleaning here, thats if it ever warms up.
Craig Harrison said
Mar 18, 2013
I think it's some type of oxidation too or possibly rainwater is actually taking some of the color from the sign and transferring it on the siding. Who knows. This stain is usually really tough to remove. I'm thinking to try F9 first and if that doesn't do it then saferestore. BTW, we'll have a great, safe product for hard water stains soon that is phenomenal.
The combination of our F9 BARC and F9 HWSR will give you the power to remove just about anything from any hard surface. Another one of our trade secrets being revealed! :)
Also, for lighting we use those industrial lights like these from Home Depot or Lowes. If your pressure washer has a generator you can just plug it in and away you go. There are several types of this kind of lighting.
Gregg- you could also do a light brushing with a soft bristled truck brush after application of F9. This would help.
-- Edited by Craig Harrison on Monday 18th of March 2013 05:00:33 PM
-- Edited by Craig Harrison on Monday 18th of March 2013 05:05:07 PM
Alejandro Riojas said
Oct 2, 2013
hey my craig any word on this product when will it come out??
Zach Maynard said
Oct 3, 2013
F9 is available at most major online retailers now.
Alejandro Riojas said
Oct 3, 2013
I was referring to the f9 hard water stain remover haha I have the other one already haha
Zach Maynard said
Oct 3, 2013
I was gonna say that boat had sailed. Lol
AC Lockyer said
Oct 3, 2013
Craig Harrison wrote:
Gregg,
I'd use F9 2:1 (2 parts BARC to 1 part water) and spray on with pump or electric sprayer. I'd mist it onto a dry surface, allowing the product to dwell for a few minutes. It's ok if it dries, just hit it with low pressure, warm water (105-125 degrees) and rinse well. I think F9 will be your best bet.
-- Edited by Craig Harrison on Sunday 17th of March 2013 09:56:14 PM
Exactly. Thanks Craig!
AC
Ray Burke said
Oct 3, 2013
Gregg Austensen wrote:
Doug I think it's oxidation leaching from behind the signs as water drains from them. The 2% didn't put a dent in them. Didn't want to up the mix either as it was painted stucco and was worried I'd start stripping the paint. It was tough working at midnight as the parking lot lights wash out the stains and it was impossible to tell until the next day if I had success. Since I'm not only stop cleaning the stains I plan to do it when there's some sunlight.
yes, its an oxidation/metal reaction from the sign. Not biological growth at all! if f9 doesnt work, OneRestore will
Matt Lancaster said
Oct 3, 2013
RACENSTEIN Sells product called shore best artillery spore remover, though its not great for that its awesome on oxidation on eifs. Becarefull around aluminum.product is similar to F13 from ptek.
Matt Lancaster said
Oct 3, 2013
This was last night at Coopersburg. Diner. Rented light tower,well worth $140.00 for the night, i think we got tan !
Cleaned the grocery store front EFIS with a 2% and it cleaned up well except of the streaking below the sign letters. In fact it looks worse now that the surrounding EFIS is clean. I'm guessing that the stains aren't organic but corrosion from the signs. Plan to hit it with a 1to1 of F9 BARC and elbow grease. How long should I let it dwell? Any thoughts on this this one guys?
-- Edited by Gregg Austensen on Sunday 17th of March 2013 09:41:46 PM
Gregg,
I'd use F9 2:1 (2 parts BARC to 1 part water) and spray on with pump or electric sprayer. I'd mist it onto a dry surface, allowing the product to dwell for a few minutes. It's ok if it dries, just hit it with low pressure, warm water (105-125 degrees) and rinse well. I think F9 will be your best bet.
-- Edited by Craig Harrison on Sunday 17th of March 2013 09:56:14 PM
Thanks Craig! Is the warm water an absolute or just helpful?
I think it's some type of oxidation too or possibly rainwater is actually taking some of the color from the sign and transferring it on the siding. Who knows. This stain is usually really tough to remove. I'm thinking to try F9 first and if that doesn't do it then saferestore. BTW, we'll have a great, safe product for hard water stains soon that is phenomenal.
Here's the link to it on UAMCC: F9 Hard Water Stain Remover
The combination of our F9 BARC and F9 HWSR will give you the power to remove just about anything from any hard surface. Another one of our trade secrets being revealed! :)
Also, for lighting we use those industrial lights like these from Home Depot or Lowes. If your pressure washer has a generator you can just plug it in and away you go. There are several types of this kind of lighting.
Gregg- you could also do a light brushing with a soft bristled truck brush after application of F9. This would help.
-- Edited by Craig Harrison on Monday 18th of March 2013 05:00:33 PM
-- Edited by Craig Harrison on Monday 18th of March 2013 05:05:07 PM
hey my craig any word on this product when will it come out??
I was referring to the f9 hard water stain remover haha I have the other one already haha
Exactly. Thanks Craig!
AC
yes, its an oxidation/metal reaction from the sign. Not biological growth at all! if f9 doesnt work, OneRestore will
This was last night at Coopersburg. Diner. Rented light tower,well worth $140.00 for the night, i think we got tan !