Adjust your Shellac mixture for hot weather, drafty conditions, or heat conditions with
Shellac.net SHELLAC Retarder (not a lacquer retarder).
When the shellac is drying too fast due to heat, low humidity, or excessive airflow,
add just enough shellac retarder to enable easy application or flow-out
(add only what is necessary and don't exceed 15-20% by volume)
When spraying shellac, the retarder will help eliminate over-spray and orange-peel.

Avoid over-use;
Keep in mind, use of the retarder will require longer drying times between the coats of shellac.