44 Piece High Temp Silicone Rubber Plug Assortment - Masking System Kit for Powder Coating, Painting, Anodizing, Plating & Media Blasting Withstands most chemicals and heat up to 600 degrees Fahrenheit for 20 minutes Excellent for masking parts during powder coating, painting, anodizing, plating, media blasting as well as hundreds of other uses around the home, shop and laboratory Durable, flexible and reusable - wil not harden, crack, shrink, fade or melt even after repeated use Color coded kit makes it easy to quickly grab the right size Made in the USA