Skip to main content

A Heat Insulation Spray-on Coating Alternative to Lizard Skin.

One of the well-known spray-on heat-shield products is Lizard Skin. From their website, “LizardSkin Ceramic Insulation (CI) is an advanced spray on thermal coating that consists of a water-based composition of high-grade acrylic binders with ceramic insulation particles to create a thermal barrier.” The Material Safety Data Sheet (commonly referred to as the MSDS) can be found here.

This sheet shows the composition of Lizard Skin as:

1 - Water 7732-18-5 40-50%
2 - Resin Polymer 00-00-00 20-30%
3 - Trade Secret Insulation Media 10-20%
4 - Carbon Black 1333-86-4 5-10%
5 - Extender Pigment 1317-65-3 1-5%

It’s relatively expensive at $200 for two gallons. They sell a special gun ($120) to spray it on although it can be applied with a brush or roller.

It's possible to make your own for much less cost.

1 – High solids white latex ceiling paint.

2 - Acrylic Polymer Resin - increases paint flow and durability. One source is Acri-Flow from up to 1 pint per gallon.

3 – Glass Microspheres  - One supplier is, mixing at the rate of one quart of spheres per gallon of paint, but some sources indicate that as many as 3 quarts of spheres per gallon should be used.

4 – Carbon Black pigment is added to give Lizard Skin its distinctive purple/black color. Any color - or none at all - is OK and can be sourced at your local paint store.

5 – Calcium Carbonate (pulverized dolomitic limestone) adds bulk and texture, sourced at Amazon or hardware stores.

To Spray
You can rent an airless paint sprayer. Use the largest tip available (.019-.024) and remove the filter screens from both the suction tube and inside the handle. The application thickness should be that of a credit card.

For Heat and Noise ControlApply the Lizard Skin-type spray-on coating, then add squares of DynaMat or similar product when fully dry. It's not necessary to cover the entire panel in DynaMat like they show you in the car magazines, small squares or long strips will do just as well.

Out-of-the-Box Alternatives to Lizard Skin
Hy-Tech SC#1000 Sound Control Coasting appears to be a product similar to Lizard Skin for both sound and heat control.


There are several forum discussion threads about various substitutes and application details.

Alternative Lizard Skin


Popular posts from this blog

WTF is a Franzinator?

Sometimes the most useful things have the oddest names. Take the Franzinator, for instance. Named after Franz©, its curmudgeonly inventor, the Franzinator is a device used to separate moisture from compressed air. Having moisture in compressed air is not a a good thing, especially in painting where it contaminates the painted surface, or in media blasting where it causes the media to clump and not work as well. As well as causing rust in the air tanks and air tools, moisture is best removed. A number of methods have been developed from expensive refrigerated driers used to pre-condition air before it gets to the compressor, to simple mechanical separators that sit in the air line between the tanks and the air tool. Here is a tank that uses a chemical desiccant to dry the air. There are also ways to install the air lines that are intended to either cause moisture to condense or collect before it is sent to the air tool. A non-mechanical separator causes the moisture in the hotte

Keeping Your Compressor Quiet

Air compressors are noisy machines. The two most commonly used ways to quiet them down are to locate the air intake outside (not good for the neighbors) or to build some type of enclosure with sound deadening material inside; that usually causes overheating problems due to poor circulation. The best solution is to construct a silencer that uses the same principles as a gun silencer. But isn't that illegal? Only if you use it on a gun. We're using it on an air compressor. Still, this topic seems to be controversial, mostly by people who have a bury-your-head-in-the-sand approach to security and safety. Here are the materials: Pipe the same size the air compressor port will use, 16"-18" long. Some exhaust pipe, the same length as the other pipe. Some washers you have to make with a hole saw, enough to put one on each end and one every 1-1/2" that will fit around the air compressor intake port pipe and fit inside the exhaust pipe. Steel wool to fit betwe