What Are the Ingredients in Gorilla Glue?

What Are the Ingredients in Gorilla Glue?

Gorilla Glue is primarily used for wood products. It is considered to be a very effective and strong glue.

This dark-brown, liquid glue is a well-known and commercially popular polyurethane adhesive.

It should not be stored in high temperatures. The warnings regarding Gorilla Glue stipulate that it will let off hazardous vapors if stored in high temperatures. It is recommended to be stored inside of the home, rather than in a non-insulated garage or left out in a vehicle which can become very heated.


Gorilla Glue contains urethane prepolymer, diphenylmethane-diisocyanate, isomers, and homologues.

Direct Hazards

This product should not be inhaled and, if contact is made, can cause irritation to skin. It should also never get in or near the eyes.


It should never be used or stored by any product which reacts against isocyanates. Alcohol is one example. Do not smoke around this glue as it can be highly flammable.


The ingredients are not considered safe for the environment if this glue is washed down a drainage system.


Due to the ingredients in Gorilla Glue, take safety precautions by wearing suitable protective clothing when using this adhesive.