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Polyurethane Installation
Polyurethane mouldings may be installed much the same way you would install
wood mouldings.
For a better fit, it is advised that a flat or “Butt Joint”
is used to join longer lengths of polyurethane mouldings. Cut all pieces
1/8th of an inch longer than the required measurement, fitting the ends
in place first and the middle sections last.
Always place a continuous bead of premium polyurethane adhesive along
all adjoining wall and ceiling surfaces before final positioning of the
moulding. Poly-glue is essential when attaching one length of moulding
to the next. A pneumatic pin nailer works well for fastening polyurethane
mouldings to wall and ceiling surfaces; alternatively, trim head drywall
screws or finishing nails may be used.
Corner Blocks
Corner or center blocks may be used to avoid difficult or challenging
mitre cuts. When using corner or adjoining center blocks, be sure to mount
the blocks to the wall and ceiling prior to measuring and cutting moulding
lengths.
Filling and Sanding
Once all of the mouldings are fixed in place, fill any joints or remaining
voids with a paintable siliconized latex caulking. This same caulking
may be applied sparingly along the top and bottom edges of the moulding
where it meets the ceiling and wall. A damp cloth or silicone coving tool
may be used to clear away any excess caulking to leave a clean professional
look.
Any remaining nail or screw holes may be filled with sandable, paintable
non-shrinking filler. Be careful not to over sand the surfaces of your
polyurethane mouldings. Sanding past the protective barrier undercoating
may necessitate further filling and sanding to maintain a paintable surface.
Ceiling Medallions
Place a solid bead of premium adhesive around and about the backside of
the medallion. Pressing the medallion into place, it may then be secured
with 4 trim head dry wall screws. Be sure to place the screws so that
any holes created may be filled and sanded with minimal effort.
Wall Niches
Some surface mount wall niches may be hung temporarily using attached
hardware or permanently using the same applicator procedures as for Ceiling
Medallions. Other niches available come complete with their own template
and installation instructions.
 Pro-Flex™
Flexible Mouldings
Let the material acclimatize to room temperature. Mouldings handle best
between 18c and 22C (65°F & 72°F). Do not soak the mouldings in hot water.
For INSIDE curves, measure the length required and add 1/8 inch. Dry fit
the moulding, shimming and trimming as necessary to get the perfect fit.
For OUTSIDE curves, measure but don't trim the moulding for extra material.
Clamp tape or wedge the material in place. For INSIDE curves, start in
the middle of the piece and work evenly on either side to the ends so
the material is not stretched and flat spots in the curve are eliminated.
Check the thickness of the product to the thickness of the matching wood
product where the two will meet. It may be necessary to shim or plane
off either product to have material align properly.
Predrilling all nail or screw holes are recommended for best application.
Alternatively, an 18 gauge pneumatic pin nailer may be used to fasten
the moulding in place. We recommend that all nails or screws are placed
no closer than 3/8 inch from the edge of the moulding.
Do not use staple guns
Do not overstress the material
Fill and lightly sand the material as for wood, taking care not to damage
any surface, wood grain pattern.
The moulding should be clean before painting or staining using a non corrosive
cleaner.
The Surfaces may be coated using paint or heavy pigmented stain. Some
mouldings may be special ordered with a darker, oak coloured, tint. For
unpainted surfaces, avoid prolonged exposure to direct sunlight, unless
a U/V inhibitor has been applied.
Custom Designed Mouldings,
Millwork and Reproductions
We can help you realize your dreams. Profile Mouldings has a full design
shop capable of turning your wildest ideas into unbelievable realities.
Contact us if you have a design in mind and would like to take advantage
of the savings and lasting quality inherent in Polyurethane Millwork.
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