Heat and Noise Reduction

4.61 out of 5 based on 28 customer ratings
28 Review(s)
Availability: in stock


Quick Overview

Heat and Noise Reduction



Al’s Liner Heat and Noise Reducer (HNR):

Al’s HNR, is proprietary blend of latex synthetic polymers. It contains acrylic, PVA and vinyl styrene and reinforced with ceramic micro spheres that provide incredible insulation, heat reflection and sound deadening properties.

HNR can withstand up to 500?F and reflects exterior temperatures by 45?F or more. HNR can be applied to virtually any substrate with minimal prep, works just like latex paint. Excellent for interior automotive applications of all types! Al’s HNR keeps your vehicle or boat cool in the summer and warm in the winter.


-Can be applied with a brush, roller, or spray gun.

-Blocks up to 35% of exterior heat/solar energy from transferring through substrate.

-Only requires a 31 mil wet coat to achieve maximum heat reflection.

-Covers up to 44 Sq. Ft. per gallon.

-Made of 100% Recycled latex polymers.

-Cleanup is EASY! No solvents needed, just add soap and water.

Additional information

Weight 10 lbs
Dimensions 8 × 8 × 10 in

28 reviews for Heat and Noise Reduction

  1. Rated 5 out of 5

    Ed. F

    Old 69 VW bus was just oh so loud this is a great deal is worked very well. If this
    an ok color for you I would say jump on this is a good deal. I jus twisted it was packaged a little or lot better the seal was more then broken ,and the box well let’s say it was I’m sound proof. 😉

  2. Rated 5 out of 5

    Fit Couple

    I used the cup brush to prepare the inside of my cab on a 1974 Chevy C10, then some self etching primer, then this HNR and top coated it with Al’s bed liner. It came out great!

  3. Rated 5 out of 5

    Matthew Belden

    Went on good with my bed liner on my Jeep tub! Noticeable heat and noise reduction!

  4. Rated 5 out of 5


    Highly recommend for Jeep interiors.

  5. Rated 5 out of 5

    Jimmy H.

    Did a cpl car floor tubs from firewalls to tail panels. Worked well especially for the price.

  6. Rated 5 out of 5

    Zane Metz

    good stuff,

  7. Rated 5 out of 5


    This stuff is amazing,,,the description said it would block heat & noise by 45%..I really think it does all that and maybe more,,,the difference inside my Jeep is unbelievable..I would reccommend this product to anyone with a Jeep…

  8. Rated 5 out of 5

    Daniel Hernandez

    Very awesome product. Easy to install.

  9. Rated 5 out of 5


    The product was as described. I am not sure how much noise it is reducing, but it appears to make a difference.

  10. Rated 4 out of 5

    Zane Halfaker

    Comes ready to spray. Just pop the seal on the gallon jug, stir it good and spray. Great price also. You will need to do multiple coats to get more thickness. I’m very happy with it so far. I hope its as durable as I’ve read it is. Less than half the price of lyzard skin. A+

    I coated (one coat) the underside, floorboards, behind the seat and firewall of an old pickup cab (regular cab) and I’ve still got about a 4th of the gallon jug left.

  11. Rated 4 out of 5

    Gerald Nippert

    Sprayed easy. I noticed reduction of heat and noise. I sprayed inside floor boards I had no a/c or carpet. Would have liked more of a reduction but I would do it again

  12. Rated 5 out of 5

    Janice Clark

    Yes, it soundproofed my car and was a good value for the price.

  13. Rated 5 out of 5


    I put on a lot of light layers, and frankly it worked perfectly. Heat reduction is apparent, and even the wife notices a great improvement in noise from the 35’s. I feel that you need to put on multiple layers to have it work properly. There are very specific thickness guidelines.

  14. Rated 5 out of 5


    Painted the inside of truck cab. This actually makes a huge difference in the noise level of the cab. Real impressed.

  15. Rated 5 out of 5


    It comes in a different container. It changes color when dry. Used with with Stinger roadkill products. The installer used a HF $20 spray gun and it went on well. Can’t say how much it helped my 2000 f350 7.3 because I have multiple layers. I would buy 2 for a crewcab.

  16. Rated 4 out of 5

    Cherie Doerr

    seems to do the job, time will tell how it holds up

  17. Rated 5 out of 5

    Craig B.

    Extremely easy to apply. Works just like they say it will. I have no heat radiating up from exhaust or from the floor boards anymore. Perfect for the off roaders that don’t want to use carpet or have carpet

  18. Rated 5 out of 5

    Jayson Saxson

    Went on really easy. Did like 5 coats on my Jeep floor and transmission tunnel. Seems to have helped. I bedlined Interior and I can touch the floor and not burn myself. I can’t speak as far as noise reduced. I wish I had done a decible test before and after

  19. Rated 4 out of 5


    Works as advertised, seems to keep the noise and heat down. Make sure you stir it really well otherwise it will be too thin. Also it is water based so don’t apply to bare metal.

  20. Rated 4 out of 5


    If you are refurbishing a car or a boat you would want to use this product to cut down on heat and noise. My husband is redoing an older Mustang. He strip the interior down and sprayed it on the floor before installing the new carpet. This is a speciality product and not everyone would have a use for it. It sprays on easily.

  21. Rated 4 out of 5

    John F. Wright

    No instructions provided. Basically a thick high tech “paint”.

  22. Rated 5 out of 5

    Shannon Zolar

    This is exactly what I expected. The container is easy to carry and I love the twist top so it is easy to reopen and continue with a project. You absolutely know when it is closed and sealed.

  23. Rated 4 out of 5

    The old lady who lived in a shoe

    Have had the hubby in the garage painting the inside of the garage door. I wanted to make sure this could be used for that application and several nice Amazon reviewers were able to answer that question for me before he got started. I didn’t want the outside painted, as from what I read, it can get chalky and scratch easily, and the outside is painted to match our house. So I didn’t want the outside to have to be repainted. With the side door opened, the door dried fairly fast. And it does make a difference in both temperature and noise. I would certainly recommend this to people who need to dampen noises in the vehicles and help keep their vehicle a bit cooler. Of course, when you have black car, black dash, black seats and black mats and live in Florida, I don’t know if that will change how the heat builds up in your car. I have been in cars that built up heat near the seats and legs and wish the owners of those vehicles had used this!

  24. Rated 4 out of 5


    My friend is a mechanic, restores old cars at home, and uses HNR products sometimes. So I believe this works based on talking with him. The prep work is significant, requiring serious planning. One will want a spray gun because of all the contours and surfaces to be painted.

    The container is oddly shaped and closes securely. I feel it should have a handle like an ordinary paint can since it weighs 5 pounds. It’s awkward to move it around.

  25. Rated 4 out of 5

    Heather LaRee

    My husband is going to use this product to cut down on the noise and (hopefully) heat from the generator compartment in our RV. Well, he hasn’t got around to that yet. But, he did try it on something else. He brushed two coats on the bottom of an 18 gauge stainless steel sink to muffle the noise. He really thinks that it helped. He called Al’s customer support line to see if there would be a problem painting it on or using it for this purpose. He said they were very friendly and suggested giving it a try. It went on easily and looks a lot better in gray that was on the bottom of the sink before. It’s really hard to say how much it reduced the noise, but it is pretty quiet for a thin gauge metal sink. I’ll report back if he ever gets around to the RV generator project.

  26. Rated 4 out of 5


    I used this Heat and Noise Reducing Paint from Al’s Liner on the ceiling, walls and floor of a small, travel trailer I am restoring and it did noticeably reduce the temperature as well as making it more sound-proof.

    It comes in an oddly shaped, plastic jug. It’s a creamy beige color and you need to be sure to stir it very well before applying. I used a roller to apply it and I put on multiple, thin coats. allowing it to dry about an hour and a half between coats since it’s been humid here. I probably applied 7 or 8 thin coats.

    As others have mentioned, it does seem to scratch easily so a sealer is in order.

    Since this is latex based, it was easy clean up with soap and water and it washed out of my clothing completely.

    I didn’t have enough product to get the full, recommended, 31mils thickness but the heat reduction was noticeable, as was the sound reduction, although I haven’t taken the trailer on the road yet.

    Good stuff and easy to apply but pay attention to the recommended thickness and be sure to get enough product. It takes a lot of coats to achieve the recommended thickness.

  27. Rated 4 out of 5

    Dr. Stuart Gitlow

    Light tan in color and cleanup with water as with any latex. Mixed easily with other latex paints to add color. Goes on fairly thin so you’ll need two to three coats to achieve a good insulation. If applied over darker color, there tends to be some show-through until you get to the third coat. Much easier to apply with spray than with brush. The paint itself has a gritty feel to it due to the incorporated ceramic material. Container is easy to use with a wide mouth and screw-top lid – I wish all paint came this way. Price is very reasonable at just a little more than a standard gallon of latex paint. Overall quite useful for added protection and insulation on otherwise sheet steel floorpans and firewalls.

  28. Rated 5 out of 5

    Richard The Buying Hearted

    The son just rebuilt his subaru pickup for off road use from the ground up and being a little truck with now big tires and axles and increased torque and engine noise he really wanted me to order this heat and noise coating for the underlining of his carriage beneath the passenger compartment.

    He says it cuts down on both the noise and the heat and since he’s entering it in a lot of off-road competitions this summer he’s thrilled to death.
    Al’s Liner ALS-HNR (heat and noise reduction) does what it says it will do and certainly aids in outdoor off road riding immensely. The real test will be the Pikes Peak hill climb held every year in Colorado Springs. It’s nothing but noise and dust and climbing precipitously all the way.

    The son says it’s worth the price because it cuts down on the heat factor about 30 to 35 % so far and the noise level has been well within tolerable range with all the gear grinding and transmission shifts involved in off road trucking.

    You can brush or spray, just be sure to pay attention to the thickness required for your job and make sure you have enough product on hand. He’s already coated the underside of the roof panels for the hot sun this summer and he says he’s good to go.

    He gives it 5 stars based on performance so far. If there are problems he’ll let me know and I’ll come back and redo the review.

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