Instructions / Assembly

ManualsBrandsMMI Door ManualsDoors & Windows72 in. x 80 in. Right Hand Active Primed Composite Clear Glass Full Lite Prehung Interior French Door

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Interior Door Care & Finishing

Proper care and finishing is very important to gain the maximum benefits from your

interior doors. When finished properly your new doors should exceed your aesthetic and

operational expectations. Below are a few key points everyone should know when it

comes to the care and finishing of interior doors.

Initial Care

• Interior Doors need to be acclimated to the environment where they will be installed.

This process normally takes two days.

• Doors stored for more than a few days should have the top and bottom rails sealed

with a pre-stain wood conditioner.

• Single (not pre-hung doors) should be laid flat on a dry, clean surface.

• Do not subject them to extreme or rapid changes in humidity or heat.

• Avoid finishing in high humidity conditions.

Finishing

• No finishing process exists today that totally eliminates the transmission of water

vapor or moisture into and out of wood doors. The key to proper finishing is to slow

down the transmission process so the door performs within tolerances.

• All doors have six sides--not two, not four, but six--front, back, two edges, plus the

most ignored and most vulnerable, the top and bottom. Failure to finish all six surfaces

uniformly is the number one cause of door failures.

• Sanding is critical--the first rule to remember is the importance of field sanding all

wood door products. Every wood door, regardless of manufacturer or style, requires

some surface preparation before finishing. The key component of this surface

preparation is thorough sanding to remove naturally occurring surface blemishes,

handling marks, dirt, etc. Each basic type of wood door requires a slightly different

procedure. The following are sanding instructions from our key suppliers:

Summary of content (5 pages)

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Interior Door Care & Finishing Proper care and finishing is very important to gain the maximum benefits from your interior doors. When finished properly your new doors should exceed your aesthetic and operational expectations. Below are a few key points everyone should know when it comes to the care and finishing of interior doors. Initial Care • Interior Doors need to be acclimated to the environment where they will be installed. This process normally takes two days.
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Molded Doors Before finishing, lightly sand a primed molded door with 220-grit sandpaper. Blow off all dust, sand lightly between finish coats with 320-grit sandpaper. Remove sanding dust with tack cloth before applying your finish. Wood Flush Doors Lightly sand the face of the door just enough to remove handling marks using 100-grit sandpaper. Avoid spot sanding and using too fine of sandpaper. This can close the grain and cause staining problems such as light spots.
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• Elastomeric or Polyurethane Caulk (To ensure that the door unit is properly caulked and all fastener holes are filled.) Step #1 Ensure the door unit is properly caulked per installation instructions. If necessary, set and fill all fastener holes. Ensure all caulking is fully cured before proceeding to the next step. Step #2 Remove or mask off all hardware prior to painting. Step #3 Lightly scuff sand the door and jamb per above sanding instructions. Step #4 Wipe the door with a clean cotton cloth.
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• High Quality Oil Based Polyurethane* - Approx. 1 Quart • (Oil based products are recommended for interior wood veneered doors. Water based products can raise the grain and cause multiple moisture related problems.
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Step #6 Apply oil-based stain and allow to dry per manufacturer’s instructions. Note: Make sure all six sides - front, back, edges, top and bottom - receive the same uniform coverage. Step #7 Apply polyurethane top coat and allow to dry per manufacturer’s instructions. Note: Make sure all six sides - front, back, edges, top and bottom - receive the same uniform coverage. Step #8 Lightly sand (320 Grit Sandpaper) and wipe clean with tack cloth per manufacturer’s instructions before applying second coat.