Yes you can, but it is a cleaner job if you remove the old caulking (as much as you can) and reseal it with new caulk.
Yes, it is possible to caulk over grout. Caulking can be used to seal gaps and cracks between tiles where grout may have deteriorated or cracked.
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.
To ensure a proper seal when caulking over existing caulk, first, clean the area thoroughly to remove any dirt or debris. Next, apply a new bead of caulk directly over the existing caulk, making sure to press it firmly into place. Smooth out the caulk with a caulk tool or your finger to create a seamless seal. Allow the caulk to dry completely before exposing it to water or moisture.
I own a caulking company, we caulk over 200 pools a season in the mid atlantic. The caulking we use is a two part poly urathane caulk. You can use a one part polyurathane caulk as well it's just not as good. This joint is an expansion joint that seperates the coping from the deck (concrete, pavers, etc). When you use sertain caulking material in conjunction with their speciefied primer they are considered submersible.
Caulking can be done either before or after painting depending on how steady a hand you have. Be sure to use a "Painter's" caulk, which is latex based. Silicone based chalks can NOT be painted over.
The best caulking for a shower is a silicone-based caulk that is waterproof and mold-resistant.
Polyseamseal silicone caulk would be the best caulking to use with bathroom tile, if you're not going to pain the caulk. If you desire to paint the caulk, MAPEI latex caulk would be best to use with the bathroom tile.
pull it out
The best method for applying baseboard caulking for a seamless and professional finish is to first clean the area thoroughly, then apply the caulk in a steady and even bead along the baseboard joint. Use a caulking tool or your finger to smooth out the caulk and remove any excess. Allow the caulk to dry completely before painting over it for a polished look.
To properly apply new caulking over old caulk for a seamless and effective seal, you should first clean the area thoroughly to remove any dirt, debris, or old caulk residue. Next, use a caulk softener or remover to soften the old caulk and make it easier to remove. Once the old caulk is removed, apply the new caulk in a smooth and even bead, making sure to press it firmly into the joint. Finally, use a caulk tool or your finger to smooth out the caulk and create a seamless finish.
To achieve a professional finish when applying wall caulking, it is important to clean the area thoroughly, use a high-quality caulking gun, cut the tip of the caulk tube at a 45-degree angle, apply the caulk in a steady and even manner, and smooth out the caulk with a wet finger or caulk tool for a seamless finish.
Prepare the surface by cleaning and removing old caulk. Use high-quality caulk and a caulking gun for precise application. Cut the caulk tube tip at a 45-degree angle for smooth sealing. Apply steady pressure while caulking to ensure even coverage. Smooth out the caulk with a wet finger or caulk tool for a professional finish. Allow the caulk to dry completely before exposing it to water or moisture.