Common Shellac Myths
From The:
Zinsser booklet revised 2004, first published in1913 and reprinted seventeen times throughout the years.
Myth:
Shellac is made from bugs or bug droppings.
FACT:
Shellac is a resin secreted by the lac insect
to form a cocoon, much like a silk worm.
It takes about 100,000 lac bugs to make
1 lb. of shellac resin.
Myth:
A shellac finish turns white
when water touches it.
FACT:
Fresh shellac is remarkably water-resistant
and, in most cases, will stay clear after hours
of exposure to water, making it a great finish
for most interior surfaces, including woodwork, trim,
doors, cabinets, paneling, floors (yes, floors!) and furniture.
Myth:
Shellac scratches easily and is very brittle.
FACT:
Shellac is a durable finish that is much less brittle than lacquer and does not scratch as easily. Unlike polyurethane, a damaged shellac finish can be easily touched up or renewed by applying another coat.
Myth:
Shellac turns an ugly dark color as it ages.
FACT:
Shellac is UV-resistant and does not yellow or darken with age. The dark shellac that people see in older homes is a less-refined version of shellac that either was naturally dark or was tinted by contractors when dark wood colors were preferred in the early 20th century.
Myth:
Shellac is incompatible with other finishes.
FACT:
Shellac will adhere tenaciously when applied over almost any other type of finish. When used as a sealer under certain polyurethanes, regular shellac may not be compatible because it contains a small amount of natural wax. To seal wood before applying polyurethane and other finishes, Zinsser developed Bulls Eye® SealCoat™ a shellac-base universal sealer that is 100% wax-free.
Myth:
Shellac is an old-fashioned, outdated finish.
FACT:
Shellac has more modern features and benefits
than any other wood finish in the world.
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