I have no idea what post you’re referring to. Elementary science class taught us that salt is crystalline. Where is the confusion?
Amazing what a 30 second search on here will yield.
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The above was better lol
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If i use nmd-80 to remove mortar splatter off this home, but there are big weep holes everywhere to let the wall breathe and stay dry. Is it safe to just wash as usual or are there precautions to take? And can anyone identify the material of the wood-looking siding? Is nmd-80 likely to be safe on it? I plan on rinsing it as soon as applied but water coming down will dilute the nmd working on the masonry below…
For nasty stone, I don’t pre treat! Its a waste.
I use my SC with high heat! Once I’m finished I rinse well and post treat! Done
And save a bunch chem that way, still amazing results
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Interesting, when I’m doing Flagstone typically I will treat from the back to the beginning to let it sit as long as possible, and then go back and hot pressure wash after. Maybe what I should’ve been doing is pressure washing first and then post treating. The problem on the one I did yesterday is it’s surrounded by plants and trees, and it was a patio at a restaurant where people sit to eat and has a lot of foot traffic. Given the weather and lack of sun, the post treatment would’ve stayed wet for literally two hours and would’ve still been wet when people were starting to come to sit down to eat. When you post treat, do you use surfactant with the SH?
The flagstone I’ve run into seems to crack under pressure… so I almost always hit with a hot mix and just rinse off, maybe post treat if need be.
