Spray the stain and use a clean cloth to blot it up as the stain begins to loosen and lift from the carpet fibers.
Varnish stain on carpet.
Work from the outside edges of the spill towards the center.
Let the area dry and then vacuum the area.
Continue blotting until the stain begins to break down and dissolve.
Oil based paint stains are more difficult to remove so it may take a while to fully dissolve the pigment.
Blot or gently stroke the carpet pile.
Vacuum or blot up the excess.
A very effective general stain remover is a mixture of 2 tablespoons of salt and a cup of white vinegar.
If the stain remains repeat the process but add 2 tablespoons of borax to the mixture.
This will give the solvent time to dissolve the varnish.
100 acetone or hydrogen peroxide are suitable alternatives if you do not have paint cleaner available.
Wet a cleaning cloth with a bit of paint cleaner and start blotting the area.
If the stain was removed do not proceed to the next step apply ammonia mix to the stained area without soaking the carpet.
If what you have available is pure ammonia work more cautiously and dilute a teaspoon into in a cup of water before dabbing it onto your carpet.
Apply vinegar mix to the stained area without soaking the carpet.
Rinse the carpet by applying warm water without soaking the carpet.
Watch for loss of color.
Place the towel over the stain and allow it to rest for five to 10 minutes.
Then press the damp material against the carpet repeatedly blotting up the stain as you go.