Remove the old sealant by pushing the knife deep inside the join and running it down the length of the seal. The sealant should peel away in long pieces, exposing the join. If it’s difficult to remove, you might want to try Selleys Silicone Remover (follow the instructions on the pack).
Use a cloth soaked in mineral turpentine to clean the newly exposed join area, ensuring all traces of the silicone has been removed then wipe the area dry.
Protect the glass screen from silicone with a strip of tape running down its length. Make sure you don’t cover the join though! Do the same for the tile side of the wall.
Pump the gun until the silicone just begins to emerge, then apply evenly to the join in a downwards motion starting from the top of the shower screen.
Use the spatula dipped in some soapy water (round corner), to clean up uneven areas and ensure the silicone is applied deeply to the join. Wash the spatula with some soapy water between touch ups.
Remove tape from wall and screen immediately after smoothing the sealant, then clean up the area with a cloth dampened with mineral turps. You’ll have about 5 minutes to do this before the silicone begins to skin.
If using Selleys No Mould, the sealant will have a firm skin and will be waterproof and shower ready just 1 hour after application. The semi-cured sealant must not be touched until fully cured (48 hours). If using Selleys Wet Area Silicone, the sealant should be allowed to fully cure (72 hours) before returning shower to use.
Clean and dry surfaces of oil, dirt and grease with mineral turpentine and then methylated spirits. Allow to dry completely before applying silicone. If old silicone needs to be removed, simply apply Selleys Silicone Remover and the old silicone can be removed easily after 2 hours
Tape both sides of the gap before applying the product. This ensures a neat finish and makes it easier to clean up
When first applying product, extrude a small amount onto a piece of scrap material to ensure a smooth continuous flow of silicone sealant
Remove the tape before the silicone sealant skins
Use a spatula dipped in mineral turps or detergent and water to tool off the sealant
Work in sections that can be completed before sealant skins.