A rubber mallet helps to ensure that the seal is fitted tightly, and is particularly helpful when dealing with tight or stubborn corners. A little common sense should also be applied here.

DOBTIM Solid Neoprene Rubber Strips with Adhesive Backing 1/16 (.062)" Thick x 1" Wide x 10' Long, Self Adhesive Rubber Sheets, Rolls & Strips for DIY Gaskets Crafts Pads Seals Warehouse Flooring ...

Rehydrate the seal. Refrigerator and freezer gaskets are typically made of rubber or a synthetic alternative. Over time, they can start to dry out, preventing a tight seal from forming.

Seal Rubber’s automotive weatherstripping is an easy-to-install rubber door seal for your car, truck, or SUV. Photo credit: Amazon.com. The C-clip and D-loop design of Seal Rubber automotive ...

Does the bottom of your garage door not have its own sealing strip? Yes it does, and its shot, but i think this style will be better for keeping the water out, and last longer too because its solid ...