Versimold Custom Rubber Mold - Silicone Heat-To-Cure Technology - Replace Rubber Parts, Mold Rubber for DIY Projects in Minutes REPLACE ANY RUBBER PART - Make any custom rubber part in minutes to repair or replace gaskets, electrical, or plumbing components EASY TO USE - Mold into any shape then heat at 250° F to create a strong, flexible rubber part in minutes HEAT AND CHEMICAL RESISTANT - Resists most chemicals including fuels oils acids bases solvents and refrigerants, and can be heated to 900° F after being cured BONDS TO RUBBER - Will actually bond to most other rubber items so you can repair existing rubber items Made in the USA in Southern Maryland.