This black edging strip from RS PRO is specifically designed for insulating steel door inspection panels in plumbing and electrical applications. The strip seals the edges of your door to protect sensitive equipment from frost, moisture and extreme temperatures.
The strip is made of EPDM (ethylene propylene diene monomer) rubber, which is highly resistant to ultraviolet (UV) radiation, abrasion and heat. This makes it a good choice for use in demanding outdoor environments. As the strip is supplied in a convenient length of 20 m, you'll have enough material to seal multiple doors.
Thanks to its width of 7.3 mm and its height of 9.5 mm, the strip is thick enough to fully insulate your door edges without becoming too bulky or preventing your door from closing properly. This product comes with a three-year warranty, so you can be sure it will last for a long time.