Gorilla Glue is a one-component moisture hardening polyurethane
adhesive for weather- and boil-resistant bonds in accordance with the
classification requirements in EN 204/205-D4.

Gorilla Glue is generally intended for bonding wood plus wood-based
products, but can also be used to bond metal and plastic. The adhesive is
formulated to produce tight-glued joints, for which reason its gap-filling
properties are limited.