Mid Tg FR4 (non-dicy cure type) is recommended for general use in any new projects that do not have any special requirements. Main applications are telecom, industrial electronics and medical devices. This laminate family has good performance in Pb-free soldering and it is the most commonly used laminate. Aspocomp has a fairly comprehensive stock of different thicknesses and copper thicknesses of laminate and also a good variety of prepreg types in stock.