fire-resistant vs fire-resisting

fire-resistant and fire-resisting both are adjectives.

Word	Noun	Adjective	Verb	Adverb
fire-resistant	No	Yes	No	No
fire-resisting	No	Yes	No	No

As adjectives, fire-resistant and fire-resisting are synonyms defined as:

Other synonyms of fire-resistant include fire-resistive, fire-retardant.

fire-resistant (adjective)	fire-resisting (adjective)
difficult to burn	difficult to burn