Heat built-up problem with black latex products

Manufacturer: We're manufacturing some latex rubber products to be exposed to direct sunlight. These are compounded with carbon black. Our problem is that the products being black in color, tend to absord heat to the extent that it's affecting the products' perfromance during their service life. Any idea how to overcome this? Don't ask us to remove the black pigment because black color is part of the product specifications.

JohnWoon: This is a very interesting question. If you believe that there is such a thing as "transparent carbon black", your battle is almost won!

The solar heat buildup of dark colored plastics or rubber products can be reduced by half if you replaced your existing black pigment with this new transparent black pigment which is especially very effective in solar infrared radiation from 750 nm up to 2,500 nm. It also offers excellent heat resistance, color strength and migration stability, as well as extreme resistance to chemicals.

Please contact BASF for more details.

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