Put tape over open end. Keep caulk from freezing.
Hardware store-comes in a tube for use with a caulking gun.
It depends. Are you looking for a long lasting caulk? An aquarium caulk? A small tube for a minor job or a large cartridge? Decide what kind of caulk you want, what quantity, and then go to a web site for a home improvement store and research prices.
pull it out
Silicone in a tube or caulk would do it well.
PL Premium, available in small tube or caulk style tube in Home Depot.
The average tube of caulk covers 30 lineal feet when applied at a quarter inch bead. Check on the tube of caulk you want to use; there should be coverage details on the tube with all the other information. Measure or guess how many feet are in need of caulking, and how much over or under a quarter inch bead your going to be, and how deep your filling; if it is over a half inch use backer rod. It takes a lot of guesswork.
Use an exterior window caulk. If you plan to paint over it make sure it is "paintable" caulk. Run the bead of caulk using a caulking gun. You can smooth out the bead with your finger and clean up any residual caulk with a wet rag (this clean uo only works if the caulk is water based...check the tube to make sure it is....it's easier if it is) If you use silicone caulk you can't paint it and you cannot clean up any errors with a wet rag so unless you are real exact in applying the bead I would avoid this type of caulk.
A caulking gun helps to extrude the caulk from a tube. If you are using it in a bathroom, make sure that it is mildew resistant and is silicon. Place the tube in the gun. First pull out the rachet, fit the tube inside and then return the rachet until it is tight. Cut off the tip of the nozzle to the right size of "bead" that you want. Squeeze the trigger and the caulk should start coming out.
Not the greatest idea, when packing in the oakum and then pouring the lead and caulking it the hub could split wide open Your new caulking job will last longer if you remove the old caulk and any of its debris and make sure the area is dry before adding new caulk. You can use an old screwdriver to remove the old.
Caulk.
: Your firewall drain tube MAY be clogged on the firewall . You can blow it out with compressed air from the engine side of the firewall. It is hard to get too but not impossible.: The other cause could be similar to what I encountered.I had this water leak in my 2002 Dodge Grand Caravan. It was not a clogged drain on the firewall but a leaking firewall gasket that the drain tube goes through. The gasket was brittle/cracked from heat off the engine. As the vehicle was driven the air entering the engine compartment was forcing the water back towards the worn gasket and it entered the passenger compartment. To replace the gasket was going to be next to impossible. So I purchased a tube of Polyurethane NP caulk from Home Depot. This caulk stays very pliable all year long. I applied it over the gasket area and around the drain tube ...but made sure it did not go in the drain. You may need an extension on the caulk tube to reach the firewall gasket area ... I used a McDonald's straw and taped it to the caulk nozzle to get the caulk on the gasket area. Wear surgical gloves and spread the caulk over the gasket area. 2 years and not a drop of water in the front passenger area of the van.
A tube that is open or free of obstruction.