Lubricate the seals of doors with WD40.
This oil is namely also used on bicycle chains and parts under the hood of the car.
And since these parts do not freeze to frost it works so indeed.
It also keeps the seals smoothly.
Lubrication for the winter rubber seals with glycerin. This substance also prevents aging and hardening of rubber.
To prevent the seals from freezing rub baby oil on seals, is the only oil that is good for the rubber.