Yes, vinegar can help to soften the sealant for easy removal. However, you'll want to be careful when using this solution as it may discolour and damage surfaces like granite and marble. As such, we recommend testing it on a discreet area first to contain any possible damage.
Grout sealants, often silicone-based, are designed to protect against stains and moisture. However, the acid in vinegar can break down these sealants, exposing the grout to staining.
I agree with the answer from batsplatsterson that mineral spirits (paint thinner) or similar solvent such as turpentine or kerosene will work.
Soften the residue.
If the residue is from a silicone sealant, try UniBond Silicone Sealant Remover. Alternatively, apply a cloth soaked in white spirit or methylated spirit. If in doubt, test the product on a small area of the residue first, and check for any discolouration.
If you are unable to get hold of a silicone remover gel, there are some household alternatives you can use to similarly soften the product, such as: Acetone. Rubbing Alcohol.
While sealant removers and methylated spirits are often sufficient to remove the silicone sealant, some parts of the silicone may still refuse to budge. To get rid of stubborn sealant, try applying heat using a heat gun or a hair dryer. Direct the heat towards the sealant for 30 seconds to 2 minutes at a time.
White Vinegar and Bicarbonate of Soda
Using a cloth or old toothbrush, scrub the affected sealant in circular motions to try and loosen some of the mould. It should start to come away. Make sure to clean and wipe the sealant afterwards.
Clean the sealant residue
WD-40® is very good at removing silicone sealant, but make sure you completely remove it from the surface before applying any new silicone sealant, as they can react.
Silicone Sealant Remover: This is a chemical solution designed to dissolve and soften the silicone mastic, making it easier to remove. Isopropyl Alcohol: This is a solvent that can help to break down the silicone mastic and make it easier to remove.
Once you're removed most of the silicone, use a cloth and some methylated spirits to wipe the remnants off. The methylated spirits act as a solvent in this scenario helping break down the last of the silicone and making it easier to manage and less sticky.
Removing adhesive: Chemical approach
One easy method is to use standard cooking oil or oil-based materials. Vegetable or canola oil can work wonders, as can peanut butter or mayonnaise. Spread it on, let it soak into the residue for about an hour, then wipe it away.
Use an ARBO Wooden Wave Tooling Stick to smooth out the silicone bead. These tooling sticks come as a set of four and can be adjusted by shaping the tip yourself to fit any joints. Using the tooling stick, apply even pressure to ensure the sealant is pushed deep into the gaps for increased adhesion.
Vinegar or caustic chemicals may dull the surface, or the shine of an acrylic sealer, but they won't totally remove it.
Among the easiest and most affordable are vinegar, alcohol, and WD-40. If you need something stronger, you can use industrial-grade isopropyl alcohol, and we recommend contacting a professional. Once you have the silicone solvent option of your choice, apply the softening agent thoroughly to all areas of the silicone.
Like WD-40, vinegar won't magically dissolve silicone caulk. However, vinegar will loosen up particularly stubborn caulk if you don't have a commercial caulk remover in your supply closet. Vinegar can also be used to clean and disinfect gaps after you've pulled out all of the old silicone caulk residue.
A Stanley knife usually does the trick, but be careful not to mark or damage the surfaces you're cutting against. If you fancy less of a DIY job, using a sealant remover product can be an easier option.
The acidity of vinegar has the capability to break down the silicone polymers, making the sealant less effective over time. This could result in leaks, moisture intrusion, and the need for premature reapplication.
If the product is usable donate it to a neighbor, paving contractor or other person who may use it. Sealers that say on the label that they contain petroleum distillates or coal tar are considered hazardous and should be disposed of as part of a hazardous waste collection program.
Acetone is a powerful solvent that can effectively break down and dissolve the sealer, making it easier to remove.
Goo Gone Caulk Remover is a must-have for removing silicone caulk and any other sealant. It breaks down the sealant so you can simply peel it away.
If you have silicone-based caulk, every few months you will want to create a vinegar and water solution, spray down the area you want to clean, and scrub with a brush. If you have a bigger more frustrating stain, leave the vinegar solution on the area for about 10 minutes before scrubbing with a soft brush.
Unless you're refreshing 100% silicone seals with GE Re-New, old caulk or sealant needs to be completely removed before you can apply new sealant. To remove sealant, you'll need: a utility blade, caulking tool, isopropyl alcohol and paper towels.
Avoid using harsh chemicals, such as bleach or ammonia, as they can damage the silicone. Use rubbing alcohol and hydrogen peroxide mixed with baking soda to prime the surface. Dry the sealant after cleaning: After cleaning the silicone sealant, dry it thoroughly with a clean, dry cloth, paper towel, or towel.