Abstract: The invention relates to a method of bonding certain aromatic polyamide to nitrile rubber compositions by applying to an aromatic polyamide a coating of a vinyl chloride polymer, preferably as a latex or plastisol, assembling the coated aromatic polyamide with the rubber composition and vulcanizing the rubber in contact with the coated aromatic polyamide. Preferably both the coating and rubber composition contain aldehyde condensation resin-forming ingredients or a partially condensed aldehyde resin. The reinforced composites produced are useful in hose, belting or tires.