Celerol Intermediate Coat 990-09 is a selective strippable system from Mankiewicz for aircraft made of composites. It is designed to make stripping easier and to help the paint come off more easily so that less aggressive strippers can be used. The product consists of a barrier layer that prevents the stripper from attacking the layers below it and the composite, which remain completely intact. As well as making the time-consuming process of sanding down the aircraft unnecessary, it also saves reapplying the basic primer and the exterior primer.