Everbuild

The white C3 silicone is the coloured sanitary option that blends with white baths, toilets and ceramic tiles, while the clear silicone is best where you want an invisible joint, on glass shower screens or mirrors. The "C3" tag simply identifies the white product variant. Use white around bath edges and sanitary joints for a neat, consistent look; use clear where you must preserve the appearance of glass or where no colour match is needed.

Yes, Forever White is a powder grout formulated for wall tiles, so it's suitable for bathroom splashbacks and shower walls. Because it's a dedicated wall grout, it gives a neat white finish ideal behind basins or around showers. For constantly trafficked or wet floors you might prefer a floor or epoxy grout designed for heavy wear.

General purpose silicone is not paintable, so you shouldn't rely on it as a paintable joint; if you want a painted finish you'll need a paintable acrylic sealant instead. Powder grout like Forever White cures to a coloured, hard finish and is not normally painted; if you need a different shade choose a coloured grout or use a grout stain product after curing.

For small to medium wall jobs, the 3kg bag of Forever White is aimed at single splashbacks or a shower wall patch, while one cartridge of general purpose silicone will usually cover the perimeter of a bath or a couple of shower joints. If you're re-tiling an entire bathroom wall or doing several wet rooms, plan to order multiple 3kg bags and several cartridges of silicone.

Forever White is formulated to give a bright white finish for wall tiles and, used on walls, it tends to stay looking fresh longer than floor grout because it encounters less wear. Like all grout, it will pick up soap scum and bathroom grime over time, so regular gentle cleaning keeps it bright; for extra protection in damp areas you can use appropriate grout protection products after the grout has fully cured.