Using Silicon sealant
1. To begin with, slot your cartridge or tube of Silicon into the gun. Adust the trigger tightness so that it is attuned to the size of the tube, then squeeze it lightly and slowly until the mechanism is touching the tube, before securing it into position. Now, you are ready to go.
2. Prepare the contact area by removing any dirt, grime, or debris that may interact with and weaken the sealant. To clean it, use a wet sponge, which has been doused in soapy water. Dry the surface thoroughly with a towel, as a damp surface can affect the efficiency of the sealant due to its waterproof properties.
3. At a 45 degree angle, pierce a hole at the top of the Silicon sealant tube with scissors or a utility knife as close to the tip as possible. Use a piece of scrap material to test out whether you need to make the hole bigger. Once you are happy with the result, slowly and evenly begin to apply the Silicon to the intended surface.
4. To get the perfect finish on your sealant application, you need to find the right speed to work out. If you apply it too slowly, you may find you are left with a rough finish and use more of the product than necessary. Move too fast, and you risk not filling the gaps correctly.
5. When you reach the end of the seam, let go of the handle and press the lever at the back of the sealant gun. This releases the pressure and stops the sealant flow straight away. If you fail to do this, the sealant will keep flowing out of the nozzle.
6. Wet your finger and use it to level out the sealant every time you apply it. It is essential that you use a damp finger to do this; otherwise, the Silicon sealant will stick.