Aragon Elastomers, LLC | Louisville, CO 80027 Aragon Elastomers manufacturers rock holds for some of the biggest brands int he world. We design, develop, and manufacture superior polyurethane solutions to meet requirement and specifications of th Aragon Elastomers manufacturers rock holds for some of the biggest brands int he world. We design, develop, and manufacture superior polyurethane solutions to meet requirement and specifications of the industries and markets we serve - climbing holds, elastomer technology, etc.