How to Apply Silicone Sealant

If you are planning to install a new bathroom suite, you will probably find that you require silicone sealant in order to complete the job. Whether you are sealing a bath, sink or basin, using silicone sealant doesn't have to be a messy undertaking; it's easy when you know how. Conversely, you may simply wish to remove and replace old silicone sealant - this too requires little skill and can be achieved with a bit of DIY.

What you will need:

Preparation

When choosing silicone sealant, it is better to opt for one that is durable and versatile, as alternatives may not end up doing the job properly. Cornertape SiliconePro, for example, is a great option and boasts the world's first Anti Drip Valve and Pre Cut Nozzle System. The SiliconePro is designed to prevent waste and save mess, unlike traditional alternatives.

Perhaps the most important part of the preparation process is to make sure that your silicone sealant gun is positioned correctly. The typical gun is comprised of three parts: the trigger, the release tab and the pressure rod. When the gun is set up correctly, use a pair of scissors to cut off the end of the applicator nozzle for the sealant at a 30 to 45 degree angle; the nozzle must be cut according to the size of the gap/joint to be filled to ensure a suitable fit. From here, cut the end off of the silicone sealant tube, before attaching the two cut parts together in a screwing action.

1)   Removing Old Silicone

If you are replacing old silicone sealant to an area, it is important to remove the old sealant first of all. This can usually be done with the aid of a craft knife. Position the knife blade behind and under the silicone to be removed and slide the blade across to remove. The blade should be held against the surface, yet care should be taken so as not to damage the surface area. You should then use the blade to cut the old sealant into sections to make the removal easier; this allows you to lift the segmented sealant away easily with the blade of the knife, piece by piece. If you find that any residue sealant is left behind, gently scrape it away with the knife blade. Remove any debris or dust from the area with a cloth before you proceed.

2)   Applying the sealant

Using the silicone sealant gun correctly during the sealing process is essential and failure to do so could result in a botched job. You should therefore ensure that you release the gun before you begin and gently draw the pressure rod back so you can keep the silicone tube ready for use. When the nozzle is in position, gently and gradually squeeze the trigger until the sealant oozes out and into the gap/joint to be filled.

3)   Applying the finishing touches

Finally, when the sealant is in place use a wet finger to smooth out the edges and remove any excess with a paper towel in order to achieve the perfect finish. 

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