Renia has been producing adhesives for the shoe repair and leather industry for almost 100 years. Colle de Cologne is Renia’s all-purpose cement. A neoprene based adhesive that also bonds PVC and TR. Colle de Cologne was developed with all the different soling and leather correction and building materials in mind. Use with leather, rubber, PUR, TR, PVC, EVA. and cork. Toluene and MEK free.