Thread: Sealers
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Old 04-15-2003, 05:24 PM   #3
John Bridge
Mudmeister
 
Join Date: Mar 2001
Location: Houston, Texas
Posts: 66,636
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kemguru
Restoration Specialist

Registered: Nov 2002
Location: Denver, Colorado
Posts: 264
Through research, and I am not wanting to try to set a standard here (although it could very well be one) 19 dynes/cm3 is about the lowest solvents will go. Some surfactants work is a solvent system, and actually bring it down lower, but those damn VOC regs again. Why should I invest more time and money into solvent technology? The water-based technology has successfully penetrated very dense surfaces once we hit 16 dynes. So, anything 16 or below will work its way into most any dense surface.

ASTM? Hahahaha Proprietary information? If a formulator were to read my posts so far, they damn near could match what I have been working on. But they would not have as much fun as I have had.

“Breathability” (according to Word this is not a word ) has nothing to do with stain resistance. Remember my piece of SILK I mentioned earlier? Now, on an extremely pourus surface you will see “staining”, but this is more of a mechanical issue. The contaminate is just sitting in the pores of the surface. Vapor transmission is a two-way street; this is why we see a faint shadowing when a fluoro-protected surface gets wet. This is only surface wetting, it evaporates real quick. This is the hardest sell with this technology. People want to see a dramatic beading affect, which it does provide, but you see a slight fogging. Even silicones don’t provide that great of a beading affect until you add wax to the mix. Yup, wax. Talk about clogging pores. Now, if we start talking film formers vs. impregnators, well, impregnators lose. I can’t touch a polyurethane coating as far as resistance. But go ahead and “cap” that stone with poly and see what happens.


Good fun everybody, good fun
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