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JWF, Rough Cut For Splicing

Rough Cut for Splicing

The most important thing to remember when creating rough-cut splice patterns for large windows is to use the same factory edge to overlap the films. Because the film is metallized, the color of the film is not perfectly even across the width of the roll. Therefore, if you did not use the same factory edge, the colors will not match up perfectly. One of the pieces will be slightly lighter than the other.

Below is an example of creating two horizontal rough-cut patterns for a window measuring 80 inches wide and 75 inches high.


Mark frame for splice
Step 1 – mark the
window frame
Trim the width from the box.
Stick blade into box
Cut multiple patterns at once
Step 2 – pull film 2-3 inches longer than needed

Step 3 – pull both from the same factory edge
Once you know where you're going to make your splice, mark both sides of the window frame. For a window of this dimension, we suggest making a horizontal splice at about 58 inches up from the bottom of the window. This means you'll need to create one rough-cut pattern 60 inches by 84 inches and another 20 inches by 84 inches.
Using a 60" roll of film, pull the film 2-3 inches longer than your 80-inch length measurement. Cut the film from the box and roll it up with the liner facing in. Then mark the factory edge side you'll be splicing with a piece of tape.
After the first rough-cut pattern is marked, it's now time to produce your second rough-cut pattern. This piece should be 20 inches wide by 84 inches in length. Cut the film from the box and roll it up with the liner facing in. Be sure to pull and cut this second pattern from the same factory edge side of the roll.
Install the first rough-cut pattern to the bottom half of the window with the factory edge at the top of the pattern, overlapping the mark on the frame by one inch. Now mist the pattern and squeegee pattern in place. Trim the film from the three edges as necessary. Re-mist pattern and squeegee again with more force.
Install the second pattern on the top of the window with the same factory edge overlapping the first pattern. Allow a minimum of 1-inch overlap to make your splice. Now mist the pattern and squeegee pattern in place. Trim the film from the three edges as necessary. Re-mist pattern and squeegee again with more force.
Once both patterns are installed, use a straight edge to make your splice trim at the mid-point of the overlap and remove the waste from the top pattern. Next, carefully lift one corner of the splice and peel off the waste from beneath the second pattern. As you remove the waste, spray the film being pulled away from the glass. Be very careful not to tear the piece you want to keep.
Squeegee out water from the splice. Then, carefully bump the splice with a hard card wrapped in a paper towel.







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