I have no problem with gum removal @ 190 degrees? I burn alot of gum. I bet it comes off alot quicker at that temp but for me i would go thru alot of hose burst's at that temp.
When we run heat it will be running for 6 to 8 hr's straight, that's also alot more money for fuel, not disagreeing with high heat but for me it's not necessary.
I will say this, at the round table in Vegas, that gum was baked into the concrete. Sure, the 300 degrees did work a bit fast and cleaner, however this was gum that has been pushed in with a cold water unit at 3000 psi over time and time again with some chemical over the years.
We noticed that on areas that have only 6 months of gum; areas that have a high of 90 degrees for 1 to 2 months during the year, there is nothing better than 300 degrees at 2,750 psi @ 6 GPM. No etch marks, no stripping.... just clean cement.
For certain jobs here in vegas we use a vapor steam cleaner (gum machine) to remove the hardest of gum. It comes up within seconds.
For certain jobs here in Vegas we use a vapor steam cleaner (gum machine) to remove the hardest of gum. It comes up within seconds.
I will say this, at the round table in Vegas, that gum was baked into the concrete. Sure, the 300 degrees did work a bit fast and cleaner, however this was gum that has been pushed in with a cold water unit at 3000 psi over time and time again with some chemical over the years.
We noticed that on areas that have only 6 months of gum; areas that have a high of 90 degrees for 1 to 2 months during the year, there is nothing better than 300 degrees at 2,750 psi @ 6 GPM. No etch marks, no stripping.... just clean cement.
We have a daimer 3000cvg. It works very well. You can go to daimer.com to check it out. It gets the water to about 320 degrees and it uses minimal water to remove the gum. We have jobs where we are contracted to remove gum more frequently than a full clean. With this machine we are able to clean the gum day or night regardless of hours of operation.