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Old 06-02-2014, 09:14 AM   #1
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Insulating paint beads: Feedback from REAL people please

Ok, I'm sure most folks on this site have heard about the Hytech insulating paint beads and the many knock-offs. Now, looking at Hytech's website, I can't help but feel that it's a scam.. I mean, just LOOK at this page: http://www.hytechsales.com/testimonials.html. It looks like something cobbled together on Geocities. The claims and testimonials seem a bit outlandish, as well, possibly even made up. It also seems unlikely that a random scattering of ceramic beads in paint will insulate, unless they were very densely packed and multi-layered.

Anyway, I'm looking for some real feedback from people who have tried it. Everyone who uses it mixes it with white paint. Is it possible that the "cooling" effect that is felt is entirely due to the roof going from deep yellow to white (and thus reflecting sunlight), not the beads? Has anyone done a side-by-side comparison?

What can I say.... I'm skeptical..
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Old 06-02-2014, 09:22 AM   #2
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Re: Insulating paint beads: Feedback from REAL people please

I'm seeing that most of the coatings are rubber-like (elastomeric). I could realistically see that contributing to the insulating factor...
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Old 06-02-2014, 10:05 AM   #3
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Re: Insulating paint beads: Feedback from REAL people please

I ordered their Bus Kote, primer and an extra 12 lbs of ceramic beads for the body paint. One thing I learned when I was in Iraq 10 years ago, every little bit of thermal protection helps. All our tan vehicles were still hot as hell, and let's not even discuss any of our trucks that were still woodland camo'd or straight green.
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Old 06-02-2014, 10:09 AM   #4
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Re: Insulating paint beads: Feedback from REAL people please

I agree that every bit of thermal protection helps, but what I'm wondering is if the insulating beads actually offer ANY measurable thermal protection, or if the perceived cooling effect is entirely due to the white, elastomeric paint, not the beads.

Has anyone done a side-by-side comparison?
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Old 06-02-2014, 11:38 AM   #5
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Re: Insulating paint beads: Feedback from REAL people please

http://www.diy-review.com/IDLqLHowTo...nstration.html

Can't say it's entirely true but this video seems to show some effectiveness.
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Old 06-03-2014, 02:09 PM   #6
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Re: Insulating paint beads: Feedback from REAL people please

I'm using Bus-Kote to paint my roof this weekend. I have a section of the roof that is not insulated and will measure before and after it is painted.

Over on Project "Brutus" Jake used it and was very impressed.

Quote:
"Temperature update... It has been pretty hot here. 90's during the day and over 80% humidity. It's 94% humidity right now The difference in the bus is borderline unbelievable. It is remaining about 5* cooler than outside, which has NEVER even come close to happening. Previously, even in the 80s, I would walk in and it would feel like a SAUNA! The rear 1/2 is in the sun and the roof would get hot and heat the bus. Now it is cool and adding no heat to the bus whatsoever. So impressed with the Bus Kote. The sides feel cool to touch as well. I feel the aluminum paint actually is reflecting some of the heat, but that is purely speculation."
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Old 06-03-2014, 11:09 PM   #7
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Re: Insulating paint beads: Feedback from REAL people please

OK, ok...we can use my bus as a test ground. Just let me know when you want to come do it.
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Old 06-04-2014, 10:11 AM   #8
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Re: Insulating paint beads: Feedback from REAL people please

Quote:
Originally Posted by opus
OK, ok...we can use my bus as a test ground. Just let me know when you want to come do it.
I'm having a roof painting party this weekend, come on over and we can do both.
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Old 06-05-2014, 09:03 PM   #9
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Re: Insulating paint beads: Feedback from REAL people please

Hey Everyone,

So we haven't painted the roof of the bus yet, but we have painted the metal floor, the subfloor (both sides) the walls under the foam insulation, and part of the metal ceiling inside. We've only been able to do the ceiling in the back half of the bus though. We mixed ceramic beads with regular Bullseye primer. The beads we used are Insuladd beads. http://www.insuladd.com/ We first used them when painting the bedrooms in our house as they're either the hottest or coldest rooms in the house, depending on the season. Because they're reflective, they don't make a difference in the summer because we don't have anything outside the house painted, but during the winter, there was a noticeable difference in how long the rooms stayed warm. They were typically getting much colder much more quickly than the rest of the house.

As for the bus, we use a space heater. When it's running, you can put your hand on the painted surface and the other hand on the unpainted surface and noticed a very measurable difference. Literally inches apart, one feels pretty warm and the other feels pretty cold. We also haven't painted the roof yet. So I can't say it'll keep the bus warm when it's cold outside, but I can say it makes a difference. We keep the heater in the middle and heat either the front or back of the bus depending where everyone is. The back of the bus will stay warmer longer than the front of the bus will.

Now, we have all the stock windows, 1" white Styrofoam insulation on the walls below the windows and under the plywood floor, and all stock insulation in the bus was left as is. We do have pretty heavy felt curtains over all the windows.

The reason we add the beads to the primer is because it actually changed the tint of the paint a bit. When we used two different cans of paint, it changed the tint in both cans, but not in exactly the same way so you can tell a bit when one can ran out and the other started being used. I guess if you had a big enough container to every drop of paint you were going to use for the whole job, it would be a big deal, otherwise I'd recommend putting it in the primer. The primer is just white and eventually covered up, so it doesn't matter what it looks like.

I browse the site almost every day and feels good to finally add $0.02.
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Old 06-09-2014, 07:38 PM   #10
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Re: Insulating paint beads: Feedback from REAL people please

To date the only real-world experience I've had with the HyTech ceramic beads was on a very old tin roof. A couple that owned an old warehouse converted to living had mixed the beads with leftover/mistake latex paint from the Depot and applied two coats using brushes and small rollers. Was well over a hundred the day I saw it and was sold. No other insulation on the 50+ year rusty old tin but with the HyTech beads on the inside it was barely warm to the touch. Any other roof would have scalded my hand that day.

I'm putting a couple of coats on both layers of my body metal as well as using the white "roof coat" on top. And I do plan a little test here soon. I have a small infrared thermometer that reads surface temp and will take a few readings on both sides of a sheet of the treated 16g steel after it has been in the sun for an hour or two. I will let you know what I discover.
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