being into the automotive restoration biz for my profession, I am surprised to see allot of general " bondo " brand body filler used on these cabinets, while bondo is good and works, there is so much better products out on the market, stuff that is lighter in weight ( your adding weight on some of these major repairs to the cab ) easier to sand, cheaper solutions too...
the reason I think arcade people like using bondo is for the grip factor... it adheres to just about any surface, and these cabs that need the repair, sometimes you’re on top of vinyl, wood and a type of laminate
like for final work and filling the small imperfections, you can use stuff like a " Spot Putty " or " Evercoat Ever-Glaze " in a tube, for that finish work where your going to make a cab perfect silky smooth filling a very low bump or divot you might have missed... nothing to mix...
and remember, what you put on.. and how much... your most likely going to sand most of it off, for the most part, so if you take a little more time on the application of the product, your going to save that much more time with the sanding and mess it makes
i’ve never used the " durhams rock hard " before, but it looks like it would do the trick, it’s just a water based product and the set time is much longer then bondo
Being in the autobody field for 16 years I think bondo is preferred because of its ease of use.
You can work with it Bondo more than marglass and it is stronger than profill (spot putty or glaze)