Masih membahas seputaran Mug Bunglon, sedikit membagi ilmu tentang penggunaan cat pada mug bunglon yang kami ambil dari beberapa referensi terpercaya.
Pada website wikipedia http://en.wikipedia.org/wiki/Thermochromism pengertian thermochromatic atau thermochromism adalah
Thermochromism is the ability of substance to change color due to a change in temperature. A mood ring is an excellent example of this, but it has many other uses such as baby bottles (changes to a different color when cool enough to drink) and kettles. Thermochromism is one of several types of chromism.
The two basic approaches are based on liquid crystals and leuco dyes. Liquid crystals are used in precision applications, as their responses can be engineered to accurate temperatures, but their color range is limited by their principle of operation. Leuco dyes allow wider range of colors to be used, but their response temperatures are more difficult to set with accuracy.
Artinya : cat ini memang sangat dipengaruhi oleh suhu disekitarnya. Jika terjadi perubahan suhu secara drastis maka cat ini akan mengalami metamorfosis (berubah menjadi kasat mata).
Dalam artikel lain pada website http://www.paintwithpearl.com/temperature_change.htm disebutkan
Thermochromic paints are paints that change color at a given temperature. Although there are color change paints for a wide array of temperatures, we have decided to start our inventory off with those that change at 30 Degrees C, or at 86 Degrees F. They are very effective at changing to a clear as the temperature goes up to reveal the graphics or base color underneath.
We have excellent luck spraying our pearl paint, candy paint, chameleon paint, metal flakes, and temperature change pigments in products such as PPG’s DBC-500 color blender, but we understand that many of our customers are using Dupont’s color blender or just any old clear binder. Using these Color Blenders, you can make over a mixed quart of temperature changing paint for less than 1/4 what you will pay anywhere else.
Thermochromic paints have been known to have issues with UV Tolerance if not top-coated with an appropriate UV inhibitor clear coat. Many of these clears are priced above $200 per gallon. If you are going to use the color change picments for outdoor use, check out alsacorp.com for their “Sunscreen Clear”, or look for a high-end Dupont clear. We are working on getting a clearcoat of our own to provide excellent UV tolerance as well. Using these high-UV tolerance clears has been shown to last over a year in full UV. Keeping your project garaged when not in use will increase the longevity of the paint as well. A few extra coats of quality UV clear never hurts either.
Paint at a temperature under 86 Degrees when using the 86 degree F paint. That way you can see what kind of coverage you are getting. Make sure the surface you are painting is also cool.
Remember, you can use color changing paints over any basecoats, including graphics. You can have a black car that changes to a yellow car with flames during the daylight. You can have graphics that dissapear when the car warms up, if you paint the graphics with the color changing paint.
You can add any pearls, candy paint pigments, or metal flakes right into the mix of color-change pigments, or topcoated over the color-change paint pigments. The good thing about that is the extra protection you get for UV, as our pearls contain Titanium Oxide, a principle ingredient in sunscreen.
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