The SMT-773 is a 100% synthetic oil for use on chains for SMT reflow ovens and is recommended for lead free temperature operating conditions up to 316°C (600°F). It is a clear oil with a slightly amber hue. It will not carbonize or produce hard varnish residue. It cleans as it lubricates, gradually dissolving pre-existing residue.
The non-drip formula is specially designed to  resist fling-off, has excellent anti-wear protection
and a low rate of evaporation which allows for long-term service between lube intervals.