Eric and Jenny
New member
Ok. We are officially stumped.
We have been working on this building since Friday.
The main part of the building has given us nothing but problems. The surface appears to be some sort of concrete with small rocks embedded in it. (I included a close up so you could see).
Underneath the windows and right below these decorative columns (which appear to be aluminum) are black streaks.
So we thought, no big deal. Its mold.
Not so.
These streaks have not come up with anything we have attempted. Thanks for all the suggestions from Mike, Chris, and Jeff.
Here is what we have tried so far:
1. Downstreamed hot 12.5% (even let it sit overnight)- Didnt touch it.
2. Strong concentration of F13/water (let sit overnight)- Didnt touch it.
3. Stong concentration of Simple Green/water- Didnt touch it.
4. Straight Simple Green and scrubbed- Didnt touch it.
5. Potassium Hydroxide/water - Still didnt touch it!
Is there anything else we could try? We dont want to throw in the towel just yet!
Thanks Everyone,
Eric
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We have been working on this building since Friday.
The main part of the building has given us nothing but problems. The surface appears to be some sort of concrete with small rocks embedded in it. (I included a close up so you could see).
Underneath the windows and right below these decorative columns (which appear to be aluminum) are black streaks.
So we thought, no big deal. Its mold.
Not so.
These streaks have not come up with anything we have attempted. Thanks for all the suggestions from Mike, Chris, and Jeff.
Here is what we have tried so far:
1. Downstreamed hot 12.5% (even let it sit overnight)- Didnt touch it.
2. Strong concentration of F13/water (let sit overnight)- Didnt touch it.
3. Stong concentration of Simple Green/water- Didnt touch it.
4. Straight Simple Green and scrubbed- Didnt touch it.
5. Potassium Hydroxide/water - Still didnt touch it!
Is there anything else we could try? We dont want to throw in the towel just yet!
Thanks Everyone,
Eric
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