8
Overlaps:
Textured Surfaces:
Certain Cast and Calendared film may be applied to heavily textured surfaces. These include architectural panels,
banner material with a dense scrim, and masonry block. For substrates such as masonry block, trouble-free installations
begin with good surface preparation. Masonry is porous and absorbs moisture as well as releases dust from its surface,
which adversely affect adhesion. To avoid failures the substrate must be sealed. Non-latex masonry paint will generally
serve this purpose. As always, before vinyl can be applied to a painted surface, the paint must be completely cured.
Some banner materials are not vinyl receptive and must be primed prior to film application. Commercial primer is
available from sign supply distributors. Never clean the banner with a strong solvent such as lacquer thinner to get it to
accept vinyl or screenprinting. Strong solvents will draw the plasticizers to the surface, making the prime coat ineffective
and potentially contaminating the adhesive.
A Common Method
1. To create a uniform overlap, first tape a cutting strip onto
the substrate.
A two-inch (5 cm) piece of thin steel at 1/16
th
inch
(1.6 mm) thickness is a good dimension for a cutting
strip.
2. Lay both pieces of vinyl over the cutting strip.
3. Place a metal straight edge where the two pieces of film
cover the cutting strip. With a sharp utility knife, cut
through all layers of film.
4. Remove the straight edge, excess film and the cutting
strip.
5. Complete the squeegeeing procedure to create a proper
overlap with uniform and straight edges.
1. Begin the application to a textured surface by first
squeegeeing graphics into position.
2. Remove the application tape from the graphic.
Starting at one edge of the graphic, heat the vinyl
with your heat gun. Burnish the vinyl with a rivet
brush, using a circular motion to work the film into
the texture. The finished product should look as if
the graphic had been painted.
3. To avoid potential lifting and peeling at the edges for
masonry applications, seal the edges with a
commercial edge sealer.
Joined sections of film should overlap at least 1/16 –
referabl
1/8
”.
(26 pages)
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