About the product
Adhesion Promoter is a polyurethane liquid with extraordinary adhesive properties. Applied to leather or vinyl one step before the application of colourant, the product creates a flexible coating that binds to the leather surface. When the colourant is then applied, it sticks to the layer of Adhesion Promoter, rather than the leather.
This image illustrates how the adhesion promoter (in red) has filed the creases and formed a coating bonded to the leathers surface. The application of Colourant (black), then adheres firmly to this layer.
The adhesive properties of the promoter are much greater than that of the colourant, so applying it first, will create a better bond to the leathers surface than the colourant would have on its own. In addition to helping adhere to the leather better, the adhesion promoter will also start to bind with the colourant creating a permanent merged layer, rather than one sitting on top of the other.
Adhesion Promoter is ideal for use on all restoration jobs, especially those where the leather is heavily creased. In these cases, the adhesion promoter fills the creases so that when the colour is applied it doesn’t seep into them, instead, it will sit on top of the creases. Without the use of adhesion promoter in these cases, the colourant would fill the creases and run the risk of cracking out with use.
The Adhesion Promoter should also be used on leather that you expect might be problematic, such as areas where grease/oil has been removed. The product will help the colourant stick better reducing chances of the grease coming back through and affecting the colour.
It should also be applied to areas where the piping is raised out so that the leather is easily knocked and abraded with use. Applying Adhesion Promoter onto these raised areas will increase the lifetime of a repair suffering from heavy knocks and constant abrasion – areas such as car seat bolsters.