I have replaced the shower base of a friends Campervan, had to pull the toilet out to do the job.

The reason the floor cracked was the lack of support in certain sections under the shower base. I corrected this and installed the new base.

If you have a similar problem with under shower base support, to me the Spray coat may not be a long term fix.

Peter

As been mentioned previously, it may be because of lack of support underneath the base. On a previous van we had the shower base crack and by pushing down on it I found it was not against the floor.

To fix it, I went under the van and carefully drilled a 1/4 inch hole through the floor , and used expanding foam through this hole to fill under where the crack was.

Then as dragonfly did I put a fibreglass layer on top of base. This fixed it.

Before doing any spray coat check why it cracked.

Barry

Hi and welcome to our forum.

We had cracks in the shower floor as well Jayco Starcraft.... say no more.

Being an adventurous handi person I Double fibreglassed the floor with 2 coats of white flocoat. Been down for over 3 years now and no more cracks. Just read the instructions on all the fibreglass gear.

Cheers

I have the same problem. I had a bloke come round to quote redcoating and he said that it's osmosis and the shower has not been installed properly (3-4mm proud of base so never drains properly). He recommended I contact manufacturer, as consumer law these days covers this as it should of been fit for purpose. I haven't had a reply from them yet. Surprise, surprise. But I'm in the same boat of needing this fixed sooner rather than later.