Granules in long glass-fibre reinforced PP (PP-LGF) have been widely used for many years. They can replace GMT, other engineering thermoplastics such as glass fibre reinforced PA or PBT, and even metals. Market demand has so far been primarily for PP with a glass fibre content of 40 % or higher. PP compounds with a lower glass fibre concentration can be made either by pultrusion or by using a long glass fibre PP concentrate that is mixed with unreinforced PP directly at the processing machine. In tests, the concentrate was mixed with PP homopolymer and PP copolymer to give 30 % LGF, and compared with a fully compounded PP-LGF 30 taking a toolbox by way of an example.