How to find the right Bulb Seals AI guide

What the AI looks for in Bulb Seals

Elastomer for the environment

EPDM for outdoor, UV, ozone and water exposure; silicone for high or low temperature and food or oven use; neoprene or nitrile where oil and fuel contact is expected The wrong compound hardens, cracks or swells quickly. EPDM in particular degrades in contact with oils.

Bulb size vs. gap

Measure the closed gap. Choose a bulb diameter that is compressed by roughly a quarter to a half of its height when the door is shut. Too little compression leaks. Too much makes the door hard to latch and crushes the bulb permanently.

Sponge vs. dense rubber

Closed-cell sponge for low closing force and light doors; dense rubber for abrasion, heavy panels and long service Sponge seals under light pressure but tears and takes a set faster. Open-cell sponge absorbs water and should be avoided outdoors.

Mounting method

Clip-on trim-and-bulb must match the flange thickness range printed for that profile. Self-adhesive needs a clean, smooth, non-oily surface. An edge grip sized for the wrong flange falls off or will not seat. Adhesive fails on textured or dirty surfaces.

Bulb position

Choose top, side or end bulb according to where the mating surface meets the flange A bulb on the wrong side of the trim never contacts the door or lid.