GUAYULE: AN ALTERNATIVE SOURCE OF NATURAL RUBBER

The state of knowledge and the future promise of guayule (Parthenium argentatum Gray) is examined in this report which also presents conclusions and makes recommendatioins. No difficulties are expected in manufacturing goods from guayule rubber; it vulcanizes like hevea rubber, it has properties that allow it to flow properly in molds and extruders, and like hevea rubber, it has the natural tack crucial for tire manufacture. Road tests in 1953 showed that heavy-duty truck tires made from deresinated guayule showed properties equivalent to those made from hevea rubber. In a federally supervised test by Firestone Tire Tire and Rubber Company, guayule tires performed as well as hevea tires. Seventy percent of the hevea rubber imported by the U.S. is used to manufacture tires. The larger the tire, the higher the proportion of natural rubber it contains. Aircraft tires are made almost entirely of natural rubber; truck and bus tires contain at least 40%; automobile tires - which absorb the bulk of the natural rubber produced - contain about 20%. Radial tires which are taking an increasingly large fraction of the auto tire market, require almost twice as much natural rubber. The growing use of radial tires should produce additional demand for natural rubber, even though they are long-wearing. The report gives details of the guayule plant, the agricultural production, the extraction of rubber, the quality of the rubber, the economics of production, and the research needs.

  • Corporate Authors:

    National Academy of Sciences

    Board of Agriculture and Renewable Resources
    Washington, DC  USA  20418
  • Publication Date: 1977

Media Info

  • Features: Figures;
  • Pagination: 80 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00322663
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Mar 12 1981 12:00AM