Formed in one piece from dual-layer HDPE with a PTFE sealing gasket for durable, stable liquid retention and leak prevention. Professionally ultra-clean processed before dispatch with strict particle and metal ion leaching control, it stores high-purity electronic reagents without disturbing test accuracy. Suited to photoresist and photosensitive solvent storage. The solid wall thickness gives a reassuring feel and the threaded cap opens and closes smoothly — suited to laboratory sample retention, medium-volume reagent dispensing and workshop sampling for testing, with custom bottle colours available on request.