D-5671NS Contact Cleaner is a completely non-ozone depleting formulation (no CFCs or HCFCs). This multi-functional azeotrope is ideal for use on electronic components and energized circuits. D-5671NS is very effective in solubilizing a wide range of soils and surface contaminants, is non-flammable and plastic safe. D-5671NS exhibits extremely low solubility of moisture which lends it to applications such as displacement drying and cleaning of water sensitive components. It’s high density coupled with low viscosity and surface tension results in even surface coating and penetration into complex geometries. D-5671NS is the prime choice as a replacement for HCFC-141b in avionic applications, and has been rated as an excellent cleaning agent for parts and equipment in oxygen-enriched service. It has a cleaning efficiency factor of 1.00 per ASTM G-121 and ASTM G-122. D-5671NS can be sprayed directly into problem areas to loosen, lift and flush away light to medium deposits of undesirable oils, greases and oxide build-up. The propellant system and active ingredients are nonflammable and highly efficient, guaranteeing complete evacuation of the contents with steady and reliable pressure (even when inverted). For applications involving sensitive plastic or rubber components we recommend D-5665NS.