You may have decided to reseal your bath because the old sealant has been in place for a while and has broken, gone mouldy, or discoloured. Let’s look at how you can effectively do this.
Step 1: Remove the old sealant
Before you start applying a new sealant, you need to get rid of the old one. There are a number of ways to do this. Perhaps the simplest option is to use a specialist sealant remover.
Step 2: Apply masking tape
Put masking tape on either side of the join. This can help to guide you when applying the sealant, ensure straight lines, and create less mess.
Step 3: Fill the bath
This should be done before applying sealant, as the bath can sink/expand a little when it is full. Leave the water in until the sealant has cured.
Step 4: Load the sealant gun (if needed)
If you are using a sealant/caulking gun, you need to add the cartridge and cut the tip. If you are using a sealant with a self-applicator, you won’t need to use a gun.
Step 5: Apply the new sealant
Holding the gun/applicator at a 45-degree angle, slowly apply a continuous bead of the new sealant along the join. Consistent pressure will ensure uniform thickness. Smooth the sealant as needed as you go along, using either a smoothing tool or your finger. Repeat this step until you are happy.
Step 6: Remove the masking tape
You should remove the masking tape while the sealant is still wet, as it helps to achieve clean lines. Wipe any excess away with an old cloth or piece of kitchen roll.
Bathroom sealant experts
There are a number of firms that specialise in bathroom sealants and similar products for DIY projects. Many of these, such as www.ct1.com/product-applications/sealing-bath-guide-beginners, have useful online resources for you to read.
Step 7: Leave to cure
Allow the sealant to cure. This can take anywhere from 2 to 24 hours, so refer to the manufacturer’s instructions to see how long the sealant you are using will take.