White Reflective Cold Weather Coating?

AaronB.

I am using alum poly hybrids. No hose heat issues cuz I have heated insulated hoses.

Rosco

It surprises me you haven't had issues with a low temp substrate. While if you have a good generator to overcome resistance in the hose heater well enough to keep temp all the way to the gun, I'd think that low substrate temp would hinder efficient polymerization. While the reaction begins in the impingement chamber, I'd worry about the reaction going to efficient completion because of heat loss when sprayed on a cold surface.
If it works, though, I'll take your word for it.

Best regards!

AaronB.

What type of issues would you expect with the low temperature substrate? As you know, the polymerization of the isocyanate and the polyol results in an exothermic reaction, thus creating its own heat. The only issues we have ever had was before our hoses were insulated and atomization was not achieved.

In colder temps, the completion of the reaction takes longer, but the end result is the same. No loss of physical properties. No loss of adhesion.

I have a 40 Kw diesel generator.

Grumpy

My concern Aaron is what you do to clear the frozen condensate from the roof surface. Most roofs have a slick almost microscopic icy surface on them at this time of year. The polyurea may be capable of sub artic applications, but is the substrate?

__________________
-Grumpy
Chicago Gutters Chicago Roofing

tomdaleh

Thanks for the feedback, gentleman.

AaronB.

Good question, Tom. We do have to make sure that the substrate is dry dry dry. This can be accomplished with backpack blowers and heated roof dryersr if necessary.