Introduction to Heat Reflective Materials
As early as in primitive society, humans' first problem was not food but temperature.
Before the advancement of science and technology to study the three elements of thermal management, in thermal insulation, people only pursued thicker, thicker, or thicker.
Until the early 2000s, three modes of heat conduction were discovered: heat transfer, heat convection, and heat radiation.
For reflective materials, the reflectivity of thermal radiation is the best indicator to measure the thermal reflection performance of materials.
This article will list top 3 of the best heat reflective materials for you.
TOP3 Glass Panel with Reflective Coating(73%)
Glass panels with gold, silver, aluminum, copper, and other metal coatings have good heat radiation reflection ability in sunlight. When there are specific requirements for visible light, this heat-reflection material is the best choice for heat-reflection glass.
The coating process is used to spray different coatings with heat reflection properties to meet heat insulation requirements in different scenarios. Under the current highest technical level, You can achieve about 73% of the heat reflection, so it is widely used in Automotive thermal insulation glass, thermal insulation film, high-rise building thermal insulation exterior walls, etc., and can bring excellent energy savings effects to buildings or objects of use.
However, the shortcomings of this kind of glass panel are also evident. Due to the glass material, it cannot adapt to scenarios that require flexibility, and it is heavy, so it is not suitable for lightweight systems.
TOP2 Aluminum Foil(97%)
Since the birth of aluminum foil, it has had an inseparable connection with thermal management. Aluminum foil has many advantages. First, it is very light in weight, resistant to water and oil, does not react with chemicals, and is up to 97% heat. The heat reflective fabrics makes it the best choice for handling thermal radiation, this flexible fabric can be combined with any object, so it is straightforward to handle.
Another feature of aluminum foil is its excellent sealing performance, making it very suitable as a thermal insulation material for duct systems, such as air conditioners, air ducts, etc. Its perfect weather resistance makes aluminum foil ideal for radiant heat barriers. Best choice.
However, aluminum foil also has shortcomings. The high thermal conductivity and low tear strength make it impossible to use as a single material. In this case, aluminum foil is often compounded with glass fiber to make aluminum foil glass fiber fabric. Glass fiber has very low Thermal conductivity (R-value), but it is powerless against heat radiation. Therefore, the combination of the two perfectly complements the shortcomings of both sides and, at the same time, has the advantages of both sides. This material can be said to be the best product in thermal insulation.
TOP1 Mirror Silver(99%)
Mirror silver is made through the silver mirror reaction. Silver Mirror Reaction is a chemical reaction in which the solution of silver (Ag) compound is reduced to metallic silver. Since the generated metallic silver is attached to the inner wall of the container, it is as bright as a mirror, which is called the silver mirror reaction.
Mirror silver has the best thermal reflectivity (99%) and is generally used in scientific research, aviation, and other fields. Its price is very high and challenging to buy, but its excellent performance is still the direction of the product sinking into the market. One day, Mirror silver can replace aluminum foil as a new generation of heat-reflective materials.
The above are the three most excellent heat-reflective materials. We are a professional manufacturer of heat-reflective materials in China. We have more than 20 years of experience in R&D and manufacturing in thermal management and have obtained many certificates, including UL/BS. With certification, head to our product center to see more high-end fire and insulation materials. 
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