Step 1 — Prepare and clean the cavity before applying the varnish.
Step 2 — Dry the cavity gently using air or cotton pellets.
Step 3 — Dip the applicator brush into the Copal F varnish bottle.
Step 4 — Apply a thin uniform layer of varnish onto the cavity walls.
Step 5 — Allow the varnish to dry completely.
Step 6 — Apply a second coat if necessary.
Step 7 — Proceed with the placement of the restorative material.