Installation Guide
MEASURE – Lay the new trim strip along the application area to determine the length needed. Before cutting, add 1/8 inch.
Cut with a razor blade or scissors.
PEEL – Locate the thin plastic release liner that covers the adhesive and peel back about 12 inches of liner.
PRESS – Line up the end of the strip with the end of the application area and lightly press it into place every 3-4 inches along 
the strip, pulling back additional liner as you work. If the placement isn’t quite right, you can pull the strip back from the surface 
to re-align. CAUTION: Do not pull or stretch InstaTrim while you work as this may cause the ends to shrink back over time. 
APPLY FIRM PRESSURE – Once the trim is set into place, use FIRM pressure to push it into the corner, every 1-2 inches 
along the strip. Then go over the entire strip again with FIRM pressure to ensure the adhesive has spread and adhered onto the 
application surface. We recommend using the InstaTrim Applicator Tool to make installation even easier.
Manufactured, sold and distributed by CornerFlex, Inc., Scandia, MN 55073-USA © 2022, CornerFlex, Inc. DBA: InstaTrim Products. All Rights Reserved. InstaTrim
®
 is a registered trademark of CornerFlex, Inc. 
U.S. Patent Nos: 9,765,960 – 9,783,999 – 10,054,304 – 10,550,584 - 11,193,668. Additional Patents Pending
CORNER AND END TRIM PIECES - Correctly splicing 
corners is challenging and may take a lot of practice to do so 
correctly. Our new trim pieces make it quick and easy to finish 
inside and outside corners and to hide exposed trim ends, and 
leave you with a smooth professional finish. 
APPLICATOR TOOL - The key to installing InstaTrim 
is that you need to press the strip firmly enough into 
the surface to cause the adhesive to spread 
and grab onto the surface area. 
The Applicator Tool’s ergonomic 
handle makes it easy on your hands 
and assists in appling firm pressure 
for the final step of installation. 
QUICK & EASY STEPS TO THE PERFECT INSTALLATION
SPLICING TWO STRIPS IN-LINE
INSTATRIM ACCESSORIES
WE’RE HERE TO HELP 
Don’t hesitate to contact us directly with 
any questions or comments at: 
customersupport@instatrim.com 
1. Lay the trim strip, adhesive side down 
on a cutting board.
2. Using a razor blade, cut the finish end 
of the First Strip at a 45° angle. then 
press into place.
3. Lay the second strip, adhesive side 
down on a cutting board.
4. Back cut the end of the Second Strip 
at a 45° angle.
5. Overlap the cut end of the second strip 
with the first and press into place.
6. Recommended: Apply a small dab of 
permanent glue where the ends meet 
and the adhesive has been cut away.
TIP: If you are having issues with the adhesive sticking to the 
surface, review the directions for cleaning the surface, especially 
the section about silicone removal. Also, make sure the 
InstaTrim is at room temperature, and if needed, use a hairdryer 
to warm up the strip slightly before installing.
First Strip
Second Strip
Overlap Ends
Inside Corner Outside Corner Exposed End Caps
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THANK YOU FOR YOUR PURCHASE! 
Look for tips, videos and more information on our website: 
www.instatrim.com


