If you have a collection of rollers , scissors and other tools that are covered with hardened resin and mat,
Call your local ZEP dealer and get some Zepresto dip carb cleaner. It removed 2 year old Vinylester Resin from my stuff
in less then 30 Minutes!!!! The tools look like new !! Schit smells Bad but man does work .

I use a similar product called surfacesolve made specifically for fiberglass tools. the stuff I use is actually self recycling as well as a "green" product but unfortuatly almost four hundyn for a five gallon bucket but the last one I bought lasted almost four years. just got a new bucket two weeks ago

do they sell it by the gallon and how much?

This stuff is the Nastiest Schit out there , dont get any on you , it smells like melted plastic ! Its definitely not " Green" . I think its is mostly Methylene Chloride ( Paint remover ) .
I store it outside the shop it smells so strong . It only comes in 5 gals . One of my customers is a Rep so I get it as " Samples " . But I think its around 2 hundy a bucket. But you can also do
your own carb jobs to! Works like magic on paint gun parts too , it also desolved all the dap Weldwood contact adhesive from my siphon gun. Works like new now.

Ohhhhh I gotta try me some of this!

So I guess a propane torch is old school?

THe stuff Glassdave has isnt nasty.... you can use it to clean your hands and no stinging on the nicks or scrapes even... I wouldnt drink it, but I have cleaned my hands with it many times and my fingers havent melted off or anything. it doesnt smell toxic either.

I dont think surfasolve will remove Cured Resin , the Zep brand Zepresto will , It removed the 2 year old 700 vinylester and glass from my rollers .
BUT it is Nasty as Heel .Your wife will not even let you in the door with this stuff on you , it has a very tenacious odor that will hang around forever ! ( reminds me of all the old mechanic shops I grew up around )
You dont want to use it as a solvent ( like Acetone ) while you lay up. I use it only to resurrect my tools that have gotten screwed up by letting resin kick on them.
The Surfasolve is very good cleaner , and is nice to the Enviroment ,