Texas Hail Shield A/Rapid Ready for Sedan & SUV Against Large Hail, Set up in 2 min, Amazon's Professional Grade Protection.

• Quick fragile-part protection against 99% hailstones up to LARGE golf-ball sizes. Amazon's Professional grade protection.
• Designed by a Texas resident/engineering professor, US and international patents pending.
• Watch the baseball bat-hitting video! A baseball’s kinetic energy is 148J, but a golfball-sized hail’s energy is ONLY 20J.
• Material Protection LLC in Texas offers a one-year warranty. If you have any issues, please find all the information on its website >> hailshield.us.
• Merit: fast hail protection for your work, travel, or home. Deficiency: no side protection to increase efficiency and reduce cost/weights.
• Best fit for 4-door 2020 Toyota Camry, RAV4, or any comparable-size car& SUV. The 2D protection area of this hail shield is around 197 inch (length) X 77 inch (width). Please don’t buy it IF your vehicle’s size is large or too small.
• Similar to other hail car covers, two persons are recommended for the installation especially during strong winds, but one person can do the job after practice.

• The only impact-dynamics-based product design including the advanced UHMWPE ballistic fabrics.
• A proud product of Material Protection LLC, Texas for the nearby residents!

Novel Texas Hail Shields for Car/Truck Protection- When hailstorms suddenly start in 3 minutes, Hail Shields provide quick protection in 2 min!

Heavy-Duty—NO worry for goofball-sized hailstones! Better than ANY similar products.

Hail protection principles based on impact dynamics (from the patent file)

The energy absorbed by the protective material layer must be equal to the kinetic energy of a hailstone

• A hailstone (5) is modeled as a spherical object with an impact speed Vo and mass m. As shown in the figure, the indentation /impact force P of a spherical indenter (hail radius R) is a function of the indentation depth δ and the contact stiffness C based on Hertz’s contact law. The contact stiffness C is an increasing function of the Young’s modulus (a material constant to evaluate whether the material is hard or soft) of the protective material layer (31).
• The protection mechanism is based on the energy balance, i.e., the energy absorbed by the protective material layer (31) must be equal to the kinetic energy of a hailstone when the maximum indentation depth δmax is achieved. As long as the thickness of the specific protective material (Tpm) is greater than δmax, no kinetic energy can be transferred to the car structures (41). Therefore, a thick protective panel is needed for a large hailstone. However, most hail protection products do not state the hailstone sizes for protection.
• For some cheap products designed and made in China, the protective material layer is too thin, and the protective material is very soft. According to the energy principle, a very soft material requires a large layer thickness to absorb the kinetic energy from the hailstone. Only the hail shield is a perfect design to satisfy (1) the energy principle, and (2) balanced protective material volume, weight, and cost. Please DO NOT complain about the weight of the hail shield—because we have to stop the damage from LARGE hailstones at a reasonable price!

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Product Description

The energy absorbed by the protective material layer must be equal to the kinetic energy of a hailstone

• A hailstone (5) is modeled as a spherical object with an impact speed Vo and mass m. As shown in the figure, the indentation /impact force P of a spherical indenter (hail radius R) is a function of the indentation depth δ and the contact stiffness C based on Hertz’s contact law. The contact stiffness C is an increasing function of the Young’s modulus (a material constant to evaluate whether the material is hard or soft) of the protective material layer (31).
• The protection mechanism is based on the energy balance, i.e., the energy absorbed by the protective material layer (31) must be equal to the kinetic energy of a hailstone when the maximum indentation depth δmax is achieved. As long as the thickness of the specific protective material (Tpm) is greater than δmax, no kinetic energy can be transferred to the car structures (41). Therefore, a thick protective panel is needed for a large hailstone. However, most hail protection products do not state the hailstone sizes for protection.
• For some cheap products designed and made in China, the protective material layer is too thin, and the protective material is very soft. According to the energy principle, a very soft material requires a large layer thickness to absorb the kinetic energy from the hailstone. Only the hail shield is a perfect design to satisfy (1) the energy principle, and (2) balanced protective material volume, weight, and cost. Please DO NOT complain about the weight of the hail shield—because we have to stop the damage from LARGE hailstones at a reasonable price!