3M™ Double Coated Paper Tape 401M is a hand-tearable double coated tape with a natural rubber adhesive system designed to offer excellent adhesion to many types of substrates. The adhesive is mounted on a paper carrier treated to provide increased strength and removability characteristics from high internal strength surfaces. - 9 Mil tape for temporary attaching or fixturing. High initial bond strength. Natural rubber double coated tape with heavy paper carrier for increased strength and dimensional stability. Offers good initial adhesion to a variety of surfaces.