The U.S. is looking at producing its own rubber; the industry could offer a hardy crop, jobs and less foreign reliance

The U.S. uses 1.5 million metric tons of rubber each year.
(Graphic by Adam Dixon, Ambrook Research)

Made-in-America rubber may become a new crop for farmers and a new manufacturing industry for the United States. "Scientists, farmers and major corporations are working together to lay the groundwork for domestic rubber production," reports Kate Morgan of Ambrook Research. Even though rubber is in "roughly 50,000 different products across U.S. manufacturing sectors, almost all of the 1.5 million metric tons or more, worth $2 billion — is imported, mostly from Southeast Asian rubber plantations." However, considering how much rubber the nation uses, reliance on a single foreign regional supplier may leave U.S. manufacturing vulnerable.

American rubber production begins with growing rubber plants, such as guayule (pronounced "why-you-lee"), which "grows wild in parts of Texas and Mexico, but it's also easy to cultivate and grow on farms throughout the region. Drought-tolerant and disinclined to disease, there's not much that bothers it," Morgan explains. When Guayuule stems are ground up and put "through a process of distillation and filtration, the result is a high-quality natural latex" for producing "everything from surgical gloves to car parts. . . . Many believe this shrub is the best candidate for developing a domestic rubber market."

Guayule is fairly impervious to conditions.
(Wikipedia photo)

The U.S. has put off rubber plant production partly because of the extreme labor used in hand-tapping Hevea, the most commonly used rubber plant. Research shows that other types of plants work better with less work. "Rubber-producing plants could be grown in the U.S. — not to mention planted and harvested mechanically, rather than with the arduous manpower required for Hevea — on a massive scale," Morgan reports. "Guayule offers many opportunities for farmers, especially in parts of the U.S. that are growing more difficult to irrigate and cultivate."

The next hurdle for American rubber production is finding a manufacturer. Katrina Cornish, professor of horticulture and biological engineering at Ohio State University, told Morgan, "It's all there, there's just no processing infrastructure. We've got farmers who are willing to grow these crops and lots of companies wanting to buy the latex. We need a full-scale processing plant, and we're looking at somewhere around a $70 million price tag." Morgan reports, "Once it's refined, Cornish added, rubber made from guayule or any other plant could be used — it could upend our entire rubber supply chain."