Clearance PEEK Sheet Shop for PEEK overstock, remnants and drops. PEEK (polyetheretherketone) is a high-performance engineering plastic that performs over a wide range of temperatures. It has outstanding chemical resistance, excellent mechanical strength and dimensional stability. Note: We update our clearance inventory daily; however some items may be sold before they are removed online. We will contact you promptly if an item is no longer in stock. Discount is reflected in product price. Can’t find what you need? Shop all PEEK Materials or Get a Quote. We cut everything! Select your item, give us your cut requirements, we'll do the rest. Compare products selected. Clear List Prev Page - Next Compare products selected. Clear List Prev Page - Next Prices and product availability are subject to change without notice. Product quantities are limited. Clearance materials are not available for pickup and are excluded from online promo code discounts.