What is meant by an initial tack?

Heavy materials attached to walls or ceilings cannot always be supported until the adhesive has cured.

In these cases, an adhesive sealant with a high initial tack provides sufficient adhesive strength to carry the materials independently without sliding or unloading, the adhesive will then also cure internally over the next few hours. In this case, it is not necessary to clamp or support the parts to be bonded.