Facts about filler Product Catalogue Find out more and discover new types of filler, tools and accessories. Read the Dalapro Product Catalogue. Read the Product Catalogue (pdf) Find out more about fillers and filling Succeeding with filling work Filler course Take our micro-course on the art of applying filler. The course takes about 30 minutes to complete, and you can use your mobile, tablet or computer. Facts about filler Nice & Smooth, the book about filler This is a book for anyone who wants to acquire more in-depth knowledge of filler and how it is used.