How to Attain the Seal Around a Kitchen Sink

How to Attain the Seal Around a Kitchen Sink

Kitchen sinks are sealed into the countertop during their installation which not just helps maintain the sink set up but also makes the border of the sink watertight. This means water can’t seep beneath the edge of the sink to hurt the region beneath the countertop. Over time, however, this seal may wear out if the caulk that is used to create it dries out, shrinks and cracks. When this occurs, the old caulk has to be carved out and a brand new seal put in.

Old Sealant Removal

Several different substances can make up the caulk that seals your sink. The most frequent are silicone and latex. Each one uses a different solvent to dissolve it; unless you are certain of what caulk was used and can purchase a solvent made for this material, it is much better to dig out the old caulk than to try to dissolve it. Use a utility knife with a new blade to dig out the old caulk. Insert the blade into the caulk on very top and bottom of the seal or contrary to the sink and the countertop. The blade slices through the caulk in both areas so the caulk could be pulled off.

Sink Preparation

After the old caulk has been taken away, the sink needs to be washed and prepared for the new seal. The old caulk might have left a residue behind that could interfere with the bonding of this new sealant. There also can be dirt, dirt or grease trapped beneath the edge of the sink that has to be cleaned away before new caulk could be applied. These substances need to be cleaned away with denatured alcohol. The alcohol removes the old caulk’s deposits, together with the other substances. It rapidly dries, leaving the surface ready for brand new caulk. Don’t use water, if at all possible, as water can take a long time to dry beneath the sink’s rim.

Caulk Application

Reseal the sink into place with a caulk designed to be used in kitchens and baths. This might be a latex or silicone caulk. It might be clear or tinted to match the countertop or sink. Apply the caulk by means of a tube that has an extremely small hole cut at the tip; too big a hole may cause a lot of caulk coming out at one time. Hold the tip of the flux against the edge of the sink where it joins the countertop in a 45-degree angle. To guarantee the caulk is applied neatly, use painter’s tape beside the sink to make a clean line. Apply the caulk in one long, continuous bead that’s pulled around the sink, rather than pushed. The completed bead should have no gaps in it.

Completing the Seal

After applying the caulk, it needs to be tooled into place. Tooling involves smoothing the flux contrary to the sink and countertop to form the final seal. The tooling can be carried out with either a special tool created for caulk tooling, or it may be done with your finger. If you use a finger, then wet it to help it glide more easily over the flux. Gently press the flux from the sink and countertop, but try to avoid pulling or moving the caulk at the same time; this could result in the flux being moved back out of the joint again. After caulking, keep the area dry for 24 hours. After this, the sink may be used as normal.

See related