caps RC-SH Series B EPDM Rubber Masking Caps EPDM Rubber caps are designed to mask plain and threaded studs, tube ends and even slotted holes; they will mask off the stud and allow finishing up to it. Recommended for processes under 350F. Excellent chemical resistance. C * Recommended temperatures up to 350°F (177°C) * Rugged & durable A * Can stretch to mask larger dimensions * Reusable Material: Rubber Color: Black 164 * For other material and color options, contact customer service.