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Hy-Tech Thermal Solutions

ThermaCels - Insulating Paint Additive 1 Gallon Package

Based on 477 reviews
Condition: New
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$27.95
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Availability: In Stock.
Fulfilled by HY-TECH THERMAL SOLUTIONS
Arrives Friday, Nov 13
Order within 17 hours and 10 minutes

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At a glance

Condition
New
Size
1 gallon package
Weight
1 lb
Color
white powder
Part Number
HC-5000-1C

Features 5

  • 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.

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.

Specs 7

Manufacturer Hy-Tech Thermal Solutions
Part Number HC-5000-1C
Item Weight 1 pounds
Item model number 5000
Size 1 gallon package
Color white powder
Coverage enough additive to treat one gallon of paint

Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Friday, Nov 13

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

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View our full returns policy here.

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Top Amazon Reviews

It works!
Size Name: 1 gallon package
It reduced the temp of my RV cabinet by around 5 degrees with 1 coat. I added to rubberized roof sealant which isn't recommended, but still worked. It thickened the coating a decent amount like flour when baking. Planning on buying much more when I paint the rest of my RV.
Reviewed in the United States on August 19, 2026 by Joe
Everything it’s suppose to do
Size Name: 5 gallon package
This product is the game changer I was searching for. We live near a huge military airbase- with fly overs daily, along with near highway traffic. Just to make sure this product worked I took several decibel reading each day of week. After a full week after painting with Lowe’s interior Valspar reserve & mixing this product in with a concrete blender-the paint & mix expanded my paint supply. When I started to apply with a spray gun that product malfunction- I just used a 18” rough to smooth roller the mixture of this ceramic powder& paint was amazing it also dries quickly. After an hour the room was noticeably quieter. After the full week- my living room decibels was down 35-40 with the planes or traffic from highway. The kitchen/ dining room was 32-35 lower. The bathroom we did previously with door closed it was 40-45 quieter since it’s in the middle of the home. We did the walls & ceiling with this product. Also house was built in 2017 walls were a cheaper stucco plain Jane basic yellow. This product can be mixed with satins, gloss will show tiny dots like sand. We love this product with egg shell makes everything brighter too. Can’t wait to see difference with electric bill with AC & heat. ... show more
Reviewed in the United States on July 20, 2026 by Amazon Customer
Good
Size Name: 5 gallon package
Hard to mix in, but seems to help the roof be cooler!!
Reviewed in the United States on July 14, 2023 by Elizabeth O'Polka
Really works
Size Name: 5 gallon package
Review Image by rogerthat
Review Image by rogerthat
Used it on a vaulted ceiling with 5/8" drywall, 5" of insulation in a 7" tall bay, not vented, asphalt shingled roof, 95 degrees outside, direct sun at noon. The pictures tell the story: surface temp of ceiling painted with product is significantly cooler. Will be using mixed with primer on all ceilings and on the inside of all uninsulated exterior walls. ... show more
Reviewed in the United States on August 23, 2026 by rogerthat
As advertised
Size Name: 2 gallon package
Worked great in basement. Much more comfortable and perfect for tv room sound. Did find texture on stairwell to ruff. So just painted over it without additive. Still works as published just doesn’t deaden sound as much in stairwell now. I would recommend.
Reviewed in the United States on July 23, 2026 by Frank
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
Does not work as advised.
Size Name: 1 gallon package
Review Image by Johnny A
Review Image by Johnny A
Review Image by Johnny A
Review Image by Johnny A
Very disappointed that this does not work. As a test I mixed up a batch 50/50 per the directions. Rustoleum indoor outdoor mixed surface paint. I painted four coats on half of a 4x4 metal cover. The other half got four coats of just the paint without the ceramic dust added. Let it dry between coats. Put it on my gas grill and measured the surface temperature and both painted sides. The paint with the ceramic was maybe 5 degrees cooler. Ambient temperature that day was 80 degrees. I tried with the grill on low 200 degree range and on high, 350 degree range. I tried painted side up. I let everything thing cool down and repeated the test with the painted side now facing the flames. No difference. I am bummed, I really wanted this stuff to work. The temperatures in the pictures are just to show the test procedure. Actual data was collected when I was not trying to take pictures. I rotated the plate a few times and recorded close to 50 temperature samples. Bottom line I was not able to find a significant difference between the paint with the paint with the ceramic added. ... show more
Reviewed in the United States on July 15, 2017 by Johnny A
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
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