How to remove old caulking
Caulking is used in many home improvement projects. Many times caulking is used to seal cracks or corners to keep water from seeping under counters, showers, tubs, or sinks and creating water damage or growing mold. Because caulking is intended to seal edges and keep water out, it can be incredibly difficult to remove. Here are a few tips for removing old caulking so that new home improvement projects can move forward.
Chip It Away
When in doubt, chip it away. Caulking is an extremely strong adhesive that becomes fairly solid once it dries. Sometimes the best method for removing it is to chip it away. This can be done with a number of different tools. However, before moving straight to the jackhammer, try the least abrasive tools first and move to stronger tools if the caulking will not come off. Some examples of tools that may work as chipping tools starting with the least abrasive are putty knives, screw drivers, chisels, and hammers. While some force will be needed to get the caulking loose, be sure not to put any holes in the wall.
Razor Blade
Another tool that can be helpful when trying to remove caulking is a razor blade. Some people only use the razor blade to clean up the small stubborn pieces that remain after chipping the bulk of the caulking away. However, the razor blade can also be used to remove most of the caulking without too much help from other tools. If the blade is used to cut along the base of the caulking and then along the top of the caulking, many times it will just pull up. Or, if the caulking does not come right up, using the razor blade can be a great preparation for chipping away caulking.
Chemicals
Chemical remedies can also be used to help get old pesky caulking to release its grip. Most local hardware stores will carry chemicals specifically devoted to removing caulking. These usually have names like "Caulk Remover." However, some other chemicals have been known to weaken caulking. Paint thinner is one chemical that has been known to work. Make sure to put the paint thinner on a rag before applying it to the caulking to prevent causing a big mess or damage to a painted wall. Mineral spirits are also known to work. Simply follow the directions on the bottle to ensure proper use.
For the most part, these chemicals are not used to actually remove all of the caulking. Usually adding a little chemical will help make chipping caulking away a little easier. Also, if after chipping there are stubborn pieces still clinging to the surface, using a little chemical may pull those little pieces right off.
Combination
As mentioned above, sometimes one method is just not enough to get all of the caulking off of the wall. Many times a combination of chipping, using a razor blade, and using chemicals will need to be used in order to get all of the caulking removed. Just always remember to start with the least abrasive method and move toward abrasive to ensure that the least amount of damage occurs.
Old caulking can begin to look ugly over time, or it may have developed a leak. No matter what the reason for needing to remove caulking, chances are it will take a little work. However, by chipping away at the caulking, using a razor blade, and applying certain chemicals, removing caulking can be a safe and doable task.
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Tags: caulking home improvement projects seal edges adhesive putty knives screw drivers chisels hammers razor blade caulk remover paint thinner mineral spirits
