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ThermaCels - Insulating Paint Additive 1 Gallon Package

  • Based on 401 reviews
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Availability: In Stock.
Fulfilled by HY-TECH THERMAL SOLUTIONS

Arrives Saturday, May 16
Order within 36 minutes
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Size Name: 1 gallon package


Features

  • Can be mixed into any kind of paint or coating. Does not change the properties of the paint it is added to.
  • Reduces heat and cooling loss by providing insulation benefits.
  • Lowers heating and cooling bills !
  • One quart by volume of ceramics is added to one gallon of paint or coating.
  • Product is sold in packages according to how much paint you will be using. A 1 gallon package will treat 1 gallon of paint, 12 gallon package will treat 12 gallons of paint, etc

Description

Developed from NASA technology, HY-TECH ceramic insulating paint additive is a fine, white powder blend of high strength ceramic "microspheres". Each single ceramic microsphere is so small that it looks to the naked eye as if it is a single grain of flour, (slightly thicker than a human hair). When mixed into paint the painted surface dries to a tightly packed layer of the hard, hollow "microspheres", (Hy-Tech's exclusive CVM, ceramic vacuum matrix technology.) The tightly packed film reflects and dissipates heat by minimizing the path for the transfer of heat. The ceramics are able to reflect, refract and block heat radiation (loss or gain) and dissipate heat rapidly preventing heat transfer through the coating with as much as 90% of solar infrared rays and 85% of ultra violet-rays being radiated back into the atmosphere. Hy-Tech insulating additive is completely inert and can be mixed into ANY paint, coating or composite including interior house paint, exterior house paint, roof paint, solvent base coating, epoxy, urethane, high temperature paint, elastomerics, mastics etc. The addition of the ceramics to any material provides heat reflection, insulation, improved fire resistance, and lower heating / cooling costs. We recommend that surfaces have at LEAST two coats of paint containing ceramics to get results. This is based on the small size of the ceramics and the need to have then distributed evenly on a surface. More coats will produce better results. Package size represents the amount of paint that package will treat. For example the "1 gallon package" will treat 1 gallon of paint. The "5 gallon package" will treat 5 gallons of paint, etc.

Manufacturer: ‎Hy-Tech Thermal Solutions


Part Number: ‎HC-5000-1C


Item Weight: ‎1 pounds


Item model number: ‎5000


Is Discontinued By Manufacturer: ‎No


Size: ‎1 gallon package


Color: ‎white powder


Coverage: ‎enough additive to treat one gallon of paint


Batteries Included?: ‎No


Batteries Required?: ‎No


Date First Available: January 11, 2016


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Saturday, May 16

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Top Amazon Reviews


  • Insulating paint
Size Name: 1 gallon package
This stuff worked great! Put it on the nose of the fifth wheel and it reduced the temp a very noticeable amount.
Reviewed in the United States on February 12, 2026 by Amazon Customer

  • People mis-interpret the benefits of this product
Size Name: 1 gallon package
Therma cells work great for some applications but many people seem to miss-interpret the benefits of using it. I used it on my school bus conversion's interior walls and did some testing on it. I used Rust-Oleum bedliner and did a thick two-coat application for reference. I would highly recommend a thicker coating like a bedliner for use with this product. I found that my walls were noticeably cooler after applying the coating. My 1st control was an un painted area which was too hot to hold a hand to after sitting in the sun all day, 2nd control was bed liner with no Therma Cells and then I had the area I applied it to. The second area was about 4 degrees cooler than the first but still noticeably hot to the touch. The Therma Cell area was only another 2 degrees cooler than the second, but it was not warm to the touch. My conclusion is that it seems like Thermacells are very effective at lowering the HEAT CAPACITY of a coated material, but not necessarily it's actual temperature. This means that thermacells will make the coated area a poor condutor of heat to the air around it, but won't necessarily work wonders on the actual temperature of the material itself. I'd definitely purchase this again as it seemed to cut down radient heat and touch-surface's (perceived, not really actual) temperatures noticeably. ... show more
Reviewed in the United States on July 23, 2024 by David I

  • Cooled down room and lowered electric bill.
Size Name: 1 gallon package
My husband used this to paint the roof over an extension of our home that is not well insulated and gets extremely hot. He applied an even layer over the roof and then waited a day and applied a second coat. I really didn't expect it to work but we could tell the room was cooler after using this. We've always used a window ac unit in that room and our electricity bill went down quite a bit. We plan to continue using this as an additive to our future home when we paint. ... show more
Reviewed in the United States on September 17, 2016 by A. Foster

  • Used on metal whole house fan slats
Size Name: 1 gallon package
Easy to mix in. Read the instructions throughly.
Reviewed in the United States on November 20, 2025 by D G

  • This Product Works!
I live in South Florida and have a Florida room with a flat roof. Over the years, we have attempted to make this room more efficient thermally and acoustically. We had a thick 3M heat reflective security film added to the windows, which wrap around the whole room. That helped a lot. We then added a new wall mounted AC unit and that helped cool the room more efficiently. A few years ago, we had the roof painted with Black Jack® ETERNA-KOTE® 100% Silicone Roof Coating. Again, that helped. But this room is still warmer than the main part of the house, so when we decided to paint the flat roof again with the Black Jack® ETERNA-KOTE, I had the 2 gallon size Hy-Tech ThermaCels paint additive and decided to add it to the paint even though it was 5 gallons of paint. The Hy-Tech additive still helped lower the heat coming through the flat roof, but what amazed me is the fact that we had a few major downpours and we can barely hear the rain through the roof. I am so impressed that I am tempted to get another 5 gallons of the Black Jack® ETERNA-KOTE and add the proper amount of Hy-Tech additive to it. We will be getting our home painted when rainy season is over and I will be adding Hy-Tech's product to all of my exterior paint. In fact, we decided to go ahead and paint the exterior of the Florida room, so I will be adding the Hy-Tech to that and after, I will add another review. Really impressed with Hy-Tech's product! ... show more
Reviewed in the United States on May 17, 2020 by Richard

  • Beware of application techniques
Size Name: 1 gallon package
Ok... I have mixed feelings about this product. One the plus side, it works. We used it on the roof of our school bus to RV remodel and there is a noticeable difference in temperature inside. On the negative side, we sprayed it on like we spray painted the whole bus. The problem is that regular paint mist/over spray floats off into the air where is paint mixed this product goes all over your project. If it's the rest of your roof, fine. But in our case it was the hood and sides of our bus. I had asked a question about this product and was advised about it having a suede like texture (it doesn't, suede is soft. This is like sand paper. I'm not sure how we will wash our bus roof in the future, since everything snags on the texture) which is why we didn't use it on the whole body. Unfortunately, it is on the body of the vehicle, just not uniformly like the roof. It looks more like dirty areas in our paint job, or the gloss is missing from the texture. Another negative is paint gun clean up. It is impossible to get all the ceramic "micro beads" out of your paint gun. I ended up buying a new paint gun because I didn't want to risk adding any more texture to the finish areas the were supposed to have none. Ultimately, I would use the product again, but with a roller or cover the whole project and protect it from over spray. I think in this case it's less about the product itself and more about the developer/manufacturer not providing adequate/accurate application information. ... show more
Reviewed in the United States on September 8, 2016 by suemel1

  • Worth every penny. Will actually save you$$ in heating and cooling costs!
Size Name: 1 gallon package
This product was packaged well and arrived quickly. I've heard of a product like this from a local company that does roofing,windows and house painting. They showed me the amazing insulating benefits of the paint and the amazing lack of heat transfer to prevent the suns scorching heat from heating the interior. It does make a noticeable difference. It helps keep the a/c to run alittle less. I don't have a lot of windows, but I noticed the rooms with a windows would get a little warm but not like before. The paint additive did make a difference. Oooh. That local company with this special paint wanted to charge me $20k. I'm soo happy to find this company that carries this special paint and additive to mix in your own paint for a more affordable price. Thank you. Customer for life. ... show more
Reviewed in the United States on July 22, 2024 by Alice Williams

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