FAQ
HOW ARE INSTATRIM PRODUCTS DIFFERENT FROM ALL THE OTHER CAULK STRIPS ON THE MARKET?
With our Patented “wing” design and a proprietary high-performance adhesive, InstaTrim products will conform and seal to 
almost any application surface including ceramic tile, laminate, solid surfaces, wood, metal and much more. 
Caulk strips you may have seen on the market are mostly made in China, are bulky, unattractive and use sub-par two-sided 
tape for adhesive. These products have the reputation of being cheap-looking with adhesive that does not last. InstaTrim 
products are easy to use, mess-free, last for years and will leave your project looking clean and professional, every time.
Frequently Asked Questions
HOW DO I KNOW WHAT SIZE TO ORDER?
There are currently two widths of InstaTrim products available. 
Half-inch wide will cover gaps up to ¼-inch wide and ¾-inch 
wide strips will cover gaps up to 3/8-inch wide.
NOTE: We're creating a new, one-inch wide trim for larger 
gaps - expected to be ready in late-2022.
HOW DO I PREVENT WATER FROM GETTING UNDER 
THE TRIM AND CAUSING MOLD AND MILDEW?
With five US Patents on the design, the wings are designed to 
push back against the surface beyond the adhesive creating 
an extra layer of protection from moisture, dirt and air.
When you push the strip into the corner, the adhesive will 
spread and grab onto the surface. Some of the adhesive will 
spread onto the edges of the wings to help keep moisture 
from seeping under.
In addition, we use high-grade PVC that contains a UV stabilizer 
and a fungicide to keep mold and mildew from growing.
WHEN USED ON TILE, HOW DOES INSTATRIM 
STICK TO THE DIPS BETWEEN THE TILES?
InstaTrim will conform to most grout lines provided they are 
not deeper than about 1/16 to 1/8 inch.
The putty-like adhesive will conform to the grout lines. If you 
are still able to see small gaps under the wings and to 
ensure water doesn't get behind the wings, or for deeper 
grout joints, you can add a small amount of non-silicone 
caulk to fill the small gaps as needed.
HOW DO I KNOW IF THERE IS 
SILICONE ON THE SURFACE?
Silicone caulk is a “rubbery” textured product with unique 
characteristics not common to any other material. If InstaTrim 
products aren’t sticking or losing the adhesion in a short 
period of time, most likely there is silicone residue on the 
surface. Full instructions on how remove silicone and prep the 
surface can be found in our downloadable “Instructions PDF”.
CAN I USE INSTATRIM ON EXTERIOR 
SURFACES IF I LIVE IN A CLIMATE THAT 
GETS EXTREMELY HOT OR COLD?
Yes, you can! For best results and ease of use, we recom-
mend installing the trim strips when the air temperature is 
around 65°F to 70°F. Once installed, it will remain attached 
in any temperature. Our products are manufactured in and 
distributed from Minnesota where our testing involves 
exterior surfaces in all weather extremes. 
HOW DO I REMOVE INSTATRIM IN THE FUTURE?
InstaTrim can be easily removed at any time. Use a putty 
knife to gently lift the end of the trim strip, grasp the end and 
slowly pull it backward and away from the surface. Some 
adhesive will remain, however you can remove most of it 
with a razor blade or your fingers. Our adhesive sticks to 
itself very well, so you can ball up a small amout and rub it 
on the remaining bits to pull the smaller pieces of adhesive 
from the surface. Follow up with acetone and a soft cloth to 
dissolve any remaining residue.
DO YOU SELL INSTATRIM IN OTHER COUNTRIES?
InstaTrim Products are available to the US, Canada and 
United Kingdom from our website, www.InstaTrim.com and 
to the following countries: Germany, France, Italy, Poland, 
Netherlands, Sweden, Spain, and the United Kingdom 
through Amazon.
Don’t see the answer you’re looking for or need help troubleshooting? 
Contact us at directly at: customersupport@instatrim.com
I FOLLOWED THE INSTRUCTIONS, WHY ISN’T THE ADHESIVE STICKING TO THE SURFACE?
There are a few factors that could be causing the adhesive to fail. Most 
likely, there is old silicone caulk or residue from silicone on the surface. 
Silicone is unique in that no other adhesive will stick to it, that’s why it is 
very important that all silicone be removed 100% for successful adhesion 
of InstaTrim strips. The good news is, that silicone and silicone residue 
can be removed. Silicone removal instructions can be found on our 
downloadable “Instructions PDF.”
If your surface has silicone on it, remove as much as you can with a razor 
blade. Apply a silicone remover product to help dissolve the old silicone. We 
have had success with Mckanica Products, WD40 and acetone. It will also 
help to scrub with a scrubby sponge for effective removal. Wipe the surface 
vigorously with acetone and a lint-free cloth and let the surface dry complete-
ly. Please make sure to properly vent the room, as some silicone removal 
products emit toxic fumes.
Another thing that is important to remember is that you must push the strip firmly into the application corner. This makes the 
adhesive spread slightly causing it to grab onto the surface and stay stuck for a long time. 
NOTE: Some tile and counter surfaces have a thin layer of silicone on them to prevent water from soaking in. This will be 
harder to remove, but it is still possible.
WHAT IS YOUR RETURN POLICY IF IT DOESN’T WORK FOR MY PROJECT?
InstaTrim is 100% guaranteed and can be returned for a full refund (less shipping costs) within six months of purchase.
© 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


