Selleys Liquid Nails Instant Hold is a high strength adhesive that delivers an instant hold, without the need for clamps or supports.* It will hold up to 400kg per m2* on any building material – even on vertical surfaces - and adheres to wet and damp surfaces. It must not be disturbed until it’s fully cured after 48 hours. * Holds instantly but must not be disturbed until fully cured. Weight is restricted for non-porous substrates including, for example, metal & glass - support may be required where the object exceeds 5kg. * Not for PE, PP, PTFE and some rubbers * Some support may be needed for objects over 5kg