Warranty

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Will it be necessary to reseal the wood after trimming
sanding or planing?
Your door whether finished or unfinished will require
an additional sealing on any side that has been cut,
sanded or planed.
By cutting, sanding or planing finished door units
during the process of the installation, you break the
seal that has been applied by the factory. This seal
needs to be reapplied to the door to give it the
protection against moisture reentering or, in a dry
environment, evaporation out of the pores of wood.
For products purchased unfinished, you will have to
seal the whole unit. Never expose unsealed, raw
wood to the environment.
An example of the effects of moisture on wood:
• A 12” wide oak board that changes from
8% moister content to 4% moister content
will shrink up to 3/16”! [12” 0.00369*4% -
0.17712”+11/64” based on the Wood
Engineering Handbook by the U.S. Forest
Products Laboratory] Even though the
shrinkage of species other than oak is
different, the basics are the same.
This is why it is very important to seal the pores of the
wood carefully prior to installation and it is always a
good idea to check the top and bottom edge of
your door for proper sealing.
How to touch up nicks and scratches.
As time goes by, your door might get minor nicks and
scratches. That is why Main Door Corporation
provides every customer who purchased a finished
unit with a touch up kit. This kit contains some stain
and a touch up pen. If you have applied a finish
other than the factory finish, we recommend that
you keep on hand a small quantity of stain and
sealer to repair small nicks and scratches.
After applying the stain, allow the area to dry for
approximately 2-4 hours. After the stain is dry, use an
artist’s brush to apply a first coat of varnish. We
recommend using an oil-based Polyurethane varnish
in semi gloss for stained units. After applying the first
coat, let the area dry for at least 1 to 2 hours before