Repair a Crack on Shower Floor

[max7]

Working on my 65' Globetrotter. I need to address a cracking shower floor. It is not real bad but it seems to be leaking now.
After searching the only thing I really found was:
#1) Interlux water tight epoxy filler (don't know color)
#2) AP Products SYON bath and tub repair kit (comes in almond color)
#3) Fiber Glass and resin - After glass work - use Fusion almond spray paint.

Am i missing anything, do you have a suggestion that you have had experience with? Thanks!
Best, Max7

[goransons]

I'd suggest you contact one of the local builders in your area. Most areas have people that specialize in repair-in-place of fiberglass shower surrounds in new and existing construction. They are amazing, and have all the right tools, compounds etc to repair cracks without paint and match existing colors exactly, or one step further regel coating (not painting) fiberglass units. The ones here weren't much more than the materials to do the repair myself and their work was literally impossible to locate even knowing exactly where they did work.

[max7]

I used this it worked great. Elmer's Products | School Glues, Art Supplies, and other adhesives for every use.

or this is probably the same stuff: Bathtub/Shower Epoxy Repair Kit | Industrial Equipment @ XMART.US

[Lumatic]

The shower may be ABS and not fiberglass

[HowieE]

The real way to do it is remove the stall and epoxy patch it from the bottom. The stress on the floor is in tension on the bottom outside so that is where the repair needs to be.

That or as mentioned above a new liner installed over the current stall. Problem there is going to be the drain connection. Hard to get to under there.