Standard wood glues (like PVA) require the materials to be tightly clamped together for an extended period while the glue cures. Grab adhesives, on the other hand, are thick, high-tack construction formulations designed to hold heavy materials (like skirting boards, architraves, or wall panels) in place instantly upon contact, often eliminating the need for temporary supports or mechanical fixings while they dry.

For areas exposed to high moisture and humidity, you must use a sanitary silicone sealant. These specific formulations contain powerful fungicides that actively resist mould and mildew growth over time. They also remain permanently flexible, allowing them to expand and contract with the slight thermal movement of baths and shower trays without breaking the waterproof seal.

No. Standard silicone sealants are designed specifically to repel water, which means both water-based and oil-based paints will simply bead up and slide off the surface. If you need to paint over a sealed gap (such as the join between a timber door frame and a plastered wall), you should use an acrylic-based decorators' caulk, which is specifically formulated to be fully paintable once cured.