Peel. Press. Perfect.

Use it everywhere for a perfect line every time.

Buy InstaTrim®

Family Handyman Magazine LOVES InstaTrim®!

Read the review!

Baseboards & Floors

Keep dirt & debris from hiding under baseboards

Buy Instatrim

Ceilings & Wall Corners

Cover sloppy paint and cracks

Buy Instatrim

Windows & Doors

Save money on heating & air conditioning bills

Buy Instatrim

Kitchen & Bathrooms

Create moisture resistant barriers around sinks, tubs, showers and toilets

Buy Instatrim

Problem Solved

Instructional video for a perfect line every time.

Peel. Press. Perfect.

InstaTrim® is a flexible, self-adhesive trim strip. From homeowners to contractors, people love how easy it is to install, with no mess or waste. The patented, self-centering wings assure uniform positioning on any surface. It prevents dirt and debris from collecting in cracks and gaps and provides a maintenance-free barrier against moisture and airflow. InstaTrim looks great as a trim finish, and is an alternative to messy caulk. The peel and stick application makes installation easy, with simple instructions and no special tools. InstaTrim can be used for home projects, commercial building maintenance and more. It will save your customers time and money.

Why Choose InstaTrim® ?

+  Easy to use, peel and stick application

+  No special tools needed

+  Non-toxic, odorless adhesive

+  No cure time needed

+  No mess, no waste

+  Mold & mildew resistant

+  Durable, long-lasting and easy to clean

Family Owned & Made in USA

Greg and Betsy Amundson own and operate their company, CornerFlex, Inc. in Scandia, MN. Greg invented InstaTrim because he was tired of seeing caulking that “looked like a monkey installed it.

News reporters have written about this patented trim and caulking alternative product in the Star Tribune, Finance & Commerce and Family Handyman. The product is available at and

This husband and wife team work together and serve together, donating their time and product to Operation Honor – Veteran Proud, a non-profit organization that hires veterans to make hand-crafted burial and retirement flag cases. InstaTrim® provides the perfect seal for the cases.