Medium to Heavy Gum Removal Speed

[Spencer]

Ditto on the OX, it will brighten up that concrete and make it pop !!

How strong are you mixing the OX for this? Are you letting it dwell and rinsing it or leaving it on?

 

[810f250]

I might not have let the burner warm up much but I know it got hot! Hot enough that I can't release the couplers without some thick gloves.
Is there an easy way to test the heat at the nozzle?

You may be surprised , it may not be as hot as you think.

You can test with an in-line high pressure thermometer.

 

[The Cleaner]

How strong are you mixing the OX for this? Are you letting it dwell and rinsing it or leaving it on?

Hey Spence, If i'm cleaning with it I go 1cup to 1gal of water then P/W off, if i'm removing rust or just brightening the concrete clean the surface first then go 1/2 cup to 1 gal and leave it on. When you mix it up make sure you use hot water, it breaks up the clumps and activates it better.

 

[Grime Busters LLC]

How strong are you mixing the OX for this? Are you letting it dwell and rinsing it or leaving it on?

Oxalic acid is a very good solution for brightening concrete and for rust removal. 1/2 cup to 1 cup per gallon is how I mix it.

Make sure you read and follow the MSDS sheet and warnings. You do not want to breath in any of the dust when mixing or vapors when spraying it down. Can cause life threatening damage to your kidneys and other vital organs.

I get mine from Hills Brothers Chemicals. Here's the MSDS sheet(s):

http://www.hillbrothers.com/msds/pdf/oxalic-acid.pdf

 

[JohnB]

Ok I will give you a hint .. Not to be a know it all .. but first get a 5 degree gumbuster nozzle, use hot water .. Mix a light solution of hot caustic mixed with peroxide.. This will clean the gum up easily and not leave stains... Just to help out..