By The Foot
1.Rubber edge trim provides perfect sealing
2. Provides protection from dust and water
3. EPDM rubber is highly sustainable
4. Avoid any rattling noise using rubber edge trim
5. EPDM rubber edge trim extrusions stands up to heat and sun better than most rubber compounds
A good rubber edge trim seal is very important in keeping dust and water out. First if dust does get in and then moisture you now have mud. In the case of a tail light that mud will remain mud for long enough to rust out your backing plate.
Rattling is also a problem you do not want as well as being very annoying it does wear things out and does tend to loosen surrounding screws making the problem worst. A good flexible EPDM U channel rubber extrusion will be a real help in avoiding this problem.
On vehicles and items that have allot of sun exposure EPDM rubber is very important for a longer life. You do not want to have to replace it every year as in most cases you can not go to your local hardware store or auto parts store and buy the proper replacement rubber edge trim extrusion.