Loctite instant adhesives loctite 4860 loctite 4860 has been designed for the assembly of difficult to bond materials and is specifically formulated to provide flexible bondlines it provides rapid bonding of a wide range of materials including metals plastics and elastomers when used to bond rubbers for example loctite 4860 maintains the full compressibility of the joint it is particularly suited for bonding porous or absorbent materials such as paper leather and fabrics loctite 4860