Take double-sided tape and place it on the outer corners of the radiator. Ensure to leave a gap between the tape and the radiator, as this area will be covered with plastic and prevent any excess paint from seeping onto the wall.
For a more convenient and efficient application, consider using spray paint. Our man chose a black radiator spray paint from Polar Coatings. Be sure to mix the paint before painting and wear a mask for protection against any harmful chemicals present in the paint.
Behold the impressive result: no stains on either surface! His radiator displays a captivating matte finish that beautifully complements the surrounding space.