By Nanofilm Technologies International Limited
NTI advanced PVD coatings, including Rainbow TAC and MiCC®, provide surface protection for precision glass molding applications where cleaner release, low friction and long mold life are critical. The coating provides an ultra-hard, ultra-dense and ultra-low-friction protective layer on the mold surface, helping reduce the risk of sticking and residue build-up during demolding while protecting the mold against repeated thermal and mechanical stress. For precision molds, coating control is critical. The surface protection must support durability without compromising mold geometry or optical surface accuracy. NTI PVD coating is engineered to help preserve the mold surface while supporting smoother release across repeated molding cycles. In comparison with conventional coating solutions, Rainbow TAC and MiCC® mold coatings have demonstrated a clear improvement in mold durability and release stability during precision glass molding, including: Up to 6× Longer optical glass mold life 6,000 Shots before sticking in benchmarking, compared with 1,000 shots previously Up to 30% Higher shot performance on upper molds 90% Particle reduction for improved process stability
