How To Use Anti-Mould Sealant?

Mould in wet areas can be hard to avoid. What bothers people most is its grim nature. Besides, it’s just not pleasant to be staring at mould while having a bath in your tab. It simply gives you the feeling that you haven’t quite scrubbed yourself enough.

Mould is always ready to spring up in a wet area. The best possible form of prevention is regularly cleaning places that are prone to it like a bathtub sealant area so as to ensure the residue of soaps and other toiletries are removed as these contribute to mould growth.

If the situation is far gone and you need to replace the sealant, then the best option would be to look for a sealant that has the below properties to lessen the continual arduous task of scrubbing the pre-existing sealant on your bathtub.

  • Mold free – a sealant containing a biocide works very well and is capable of keeping the caulk mould-free for 10 years provided it cleaned frequently.
  • Waterproof – 100% silicone caulk is a great option as it maintains it’s waterproofing properties for a long time. Neither does it crack or shrink as it is capable of retaining flexibility of over time
  • Cures fast – you want to use an anti-mould sealant that cures as fast as an hour or two at minimum or 8 hours at maximum so you can be able to use the wet area soonest without destroying the installation

Once you have gotten past the selection process of the best anti-mould sealant option for your surface whether for use in the bathroom or kitchen, you can now get to preparing the area to be applied in order to ensure best results.

Step 1: Preparation

For the best outcome, you want to make sure the area the anti-mould sealant is to be applied is completely clean and dry. You also need to make sure that all previous sealant has been thoroughly removed and there is none left. Ensure all grease and dirt has been removed.

But just to be double sure, on the final touch of cleaning, you can employ the use of a white spirit dampened cloth to further remove any lingering grease and dirt.

Step 2: Assembly

Once this has been done, you can now take anti-mould sealant to mount the nozzle into the cartridge and the cartridge into the gun and by simply pressing the trigger, a steady stream of anti-mould sealant paste will be directed to the desired area in a very tidy and effective fashion. The mounting process comes clearly outlined with the anti-mould sealant and is a fairly easy and quick procedure to get right.

Step 3: Sealing

Note that it might take a bit of practice to get it right. You can test your hand at a piece of a cardboard box by pointing the nozzle and running a smooth continuous bead of sealant as that might help improve your confidence.

When sealing, it’s advisable to start at the corner while the nozzle is in contact with both sides of the joints and working along the length of the area in a steady continuous movement.


By frequently cleaning the sealant area frequently removing all soap residue and toiletries, you can be sure of a mould free finish for a long time to come.

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Homefix Handyman
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Nottingham NG1 5BL