B-SIM is a blow molding simulation code that uses a viscoelastic K-BKZ material model. This covers the most important effects of large deformation of plastics as time dependency, strain hardening and strain softening.

Accuform is the developer and owner of the software packages T-SIM and B-SIM. The main purpose of the software is to optimize thickness distribution of the plastic products both for thermoforming and blow molding techniques. Another area of interest is prediction and optimization of images printed on plastics prior the process.