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Sodium metasilicate
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I was reading a local website today and found someone using sodium metasilicate to clean roofs.

All of the RCIA certified masters including the ARMA and shingle manufacturers do not recommend using this chemical.

It is too alkaline with a ph of 12.5-13, which is too corrosive and damaging to asphalt shingles. It will soften and melt the tar/asphalt, decreasing the longevity of the roof.

For those of you using TSP substitute cleaners, check the ingredients to see if sodium metasilicate is in it. If so, STOP using it!

It's not as bad as sodium hydroxide (ph 14), but it's still not good.

The best roof chemical concoction using sodium hypochlorite should have a ph of around 11-11.5, using tri-sodium phosphate. Without TSP, the ph will be lower, and will still work well using isopropol alcohol (Apple Cider).

http://www.finishing.com/155/96.shtml

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I seen the topic of Simple Cherry being used,...isn't that the main ingredient in Simple Cherry?

Jeff

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No, Simple Cherry is similar to Emulsifier plus. For house washing.

Sodium tripolyphosphate. STPP
http://en.wikipedia.org/wiki/Sodium_tripolyphosphate

Not quite as strong as TSP, and is gentler on screens, windows, painted surfaces.

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Power house from Sunbrite, is a very strong degreaser. For house washing, gutter cleaning.

It contains sodium metasilicate, sodium hydroxide, butyl, etc.

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Might want to read this guys?
http://www.jstage.jst.go.jp/article/sfj/58/8/465/_pdf
Read it good, it deals with the cleaning power of SH atdifferent PH levels.

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I'm to impatient to read all of that. Break it down for us Chris.

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CCPC wrote:

I'm to impatient to read all of that. Break it down for us Chris.




Break it DOWN ??
Ok, "Hammer Time"

If you read the article, you will see that UP to PH 13, formation of the Hyperchlorite IonINCREASES
This does NOT mean Mike Sullivan is wrong either.

Because at REAL high Ph, there is almost NONE of the Hyperchlorus Acid that KILLS the Algae sporespresent on the roof!!!

At PH 11, the ratio of Hyperchlorus Acid that Kills and the Hyperchlorite Ion the CLEANS is 70/30

That is 70 percent cleaning/30 percent killing power

At PH 13, it is 90/10 !!

So, higher PH's DO clean better, but the cleanings last LESS Long, unless you treat the roof afterwards.

Perhaps THIS explains why Apple Sauce is so long lasting ??

The Borax buffers the solutiondown to PH 9 to 10, and there is still plenty of killing power.








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Your always on it Chris,...thanks man!!

Jeff

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Raystown Roof Cleaning
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(814) 644-1396 or 1-800-236-0322

Roof Cleaning Central Pennsylvania

Huntingdon, State College, Lewistown, Altoona









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Chris, do you still have the picture of the guy who used Hydroxide and turned the roof completely black? Sure makes for an impressive B&A Picture!

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Roof Cleaning Evansville Indiana 270 860 7894 wrote:

Chris, do you still have the picture of the guy who used Hydroxide and turned the roof completely black? Sure makes for an impressive B&A Picture!




THIS one ?



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Apple Roof Cleaning Tampa Florida

711 Westbrook

Brandon, FL 33511

813 655 8777

See our website here 

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Here are more of our services

Watch a short video

 




 



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Apple Roof Cleaning Tampa 813-655-8777 wrote:

Might want to read this guys?
http://www.jstage.jst.go.jp/article/sfj/58/8/465/_pdf
Read it good, it deals with the cleaning power of SH atdifferent PH levels.



This Pdf white paper on Soduim Hypochlorite is an excellent reference source.

I didn't have this one on file.

I do now!

I read it and understand most of it which is suprising biggrin


Thanks for posting this Chris!



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Roof Clean USA Georgia 229-227-0000 wrote:

Apple Roof Cleaning Tampa 813-655-8777 wrote:

Might want to read this guys?
http://www.jstage.jst.go.jp/article/sfj/58/8/465/_pdf
Read it good, it deals with the cleaning power of SH atdifferent PH levels.



This Pdf white paper on Soduim Hypochlorite is an excellent reference source.

I didn't have this one on file.

I do now!

I read it and understand most of it which is suprising biggrin


Thanks for posting this Chris!




I thought it was good reading, a little technical, but within the grasp of most roof cleaners.
Read, and re read, itworks for me. smile



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Apple Roof Cleaning Tampa Florida

711 Westbrook

Brandon, FL 33511

813 655 8777

See our website here 

Click here for more information

Here are more of our services

Watch a short video

 




 

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