Mask Off Areas Not to Be Primed

What happens here

Before mixing any product, mark a straight line where the primer should stop, such as at the garage door opening, using a chalk line (red string in the video). Then, protect the adjacent areas, like the garage door weather strip or the driveway, by laying down masking paper and securing it firmly with blue painter's tape, ensuring a clean and sharp edge for the epoxy application. This step is crucial as you'll have limited time once the epoxy is mixed.

Goal: Protect surrounding surfaces and create a clean application boundary.