EnduraflexTM RC411TNCured EnduraflexTM tan, soft, cured, natural rubber lining for general purpose chemical resistance, HCl service and impingement and abrasion. FDA compliant. For more information about this product, complete the form below or call 800-321-5583. Specs: Application: General Purpose, HCI Service, Sliding Abrasion Durometer: 35 to 45 A PDF Downloads: Spec Sheet (PDF) Notice: JavaScript is required for this content.