Based on this product's specifications, here are some alternatives and similar models
Plastic Padding finspartel 180 ml — MONROE 180 ml plastic filler
Summary description:
MONROE Plastic Padding finspartel is a 180 ml plastic filler designed for repairing small imperfections, scratches and joints on plastic surfaces. Supplied in a compact tube, it provides a workable paste for filling and shaping plastic parts before sanding and painting. Suitable for automotive trim, plastic bodywork and DIY plastic repairs.