I use the 3M general purpose spray glue it sprays out rather stringy and dries very quickly ... The general purpose spray glue will not soak thru the rat fur ......DO NOT USE 3M SUPER ADHESIVE SPRAY GLUE as it will soak thru the rat fur ... And will leave you with a very big ugly mess , with the general purpose spray glue apply to both of the surfaces and wait approximately 15 minutes or less depending on the climate were you are located at once it is tacky put both surfaces together , goof off is a great product for cleaning up any over spray  Hope this helps .....