Shower cubicle sealant

[Richtee180]

Is Sikaflex 522 the recommended sealant for the shower tray and cubicle as opposed to regular bathroom sealant?

 

[Mr Plodd]

Why are you asking when there are products readily available that are purpose designed for the job?
Having used various makes over the years my only comment would be DONT buy cheap, go to a tile and bathroom company and buy theirs not the stuff from other highstreet outlets such X&Y. With silicone sealants you really dont get what you dont pay for, so dont skimp. Oh, and became full to REALLY clean the surfaces your are applying it to or the bead WILL fail.

 

[trevormonty]

If floor tray is cracked I don't think any sealant will result in permanent repair. For good seal need surfaces clean which is near impossible with fine crack lined with soap and mould. Fibre glassing ie mat plus epoxy will give strong waterproof repair but it wont look pretty if applied to top.

The temporary repair I used on my bailey cracked floor was sealant that flows into cracks. Can't remember what its called. Think somebody on forum told me about it.

 

[Mr Plodd]

The temporary repair I used on my bailey cracked floor was sealant that flows into cracks. Can't remember what its called. Think somebody on forum told me about it.

No mention was made of a cracked shower tray by the OP!

The stuff you are thinking of is "Captain Tolleys Creeping Crack Cure" but its only suitable for hairline cracks. Its a very thin liquid that creeps into cracks by capillary action and tgen sets clear, but its useless at sealing anything bigger such as joints between shower cubicle sides and trays. Thats where you need DECENT silicone.
I once had a shower tray base that cracked. I drilled an access hole in tge side/rear where it couldn't be seen and injected builders foam under the crack. Its sticks like the proverbial to a blanket and is 100% waterproof. The repair held for the next 4 years I owned the MH.

 

[GaryB]

Whatever you use as a sealant, clean the area thoroughly and give it a final wipe down with isopropyl alcohol, this will ensure all traces of oils, residues etc are removed. A lot of window/glass cleaning products contain isopropyl alcohol and can be used.

 

[Dustydog]

Let me try! This is a very friendly Forum . Many very clever seasoned caravanners post.

Firstly let's ask what the caravan manufacturers use?

I know they use Sikaflex 522 or latest variant. Or some use Soudal RV61. Both will outlast any sealant you can buy from Wickes etc.

Remember not only does a caravan sealant have keep water in or out, it has to be flexible and strong enough to withstand road vibration.
So yes to you are correct In Sikaflex and correct font use domestic sealants

 

[IanB1485]

I use a two part acrylic bathtub repair kit it takes a while to set (about 24 hours) and is very resilient.
Its on amazon https://www.amazon.co.uk/Shower-Repair-Hupeyna-Bathtub . Used it a few times on shower trays. The thing you have ask yourself why did it split in the first place , is it bedded in properly (floor)? or is it a side panel which can flex ? If this is the case drilling a hole in it and applying expanding foam behind it to strengthen it before repairing the split may help to stop it reoccuring. the Shower cubicles in caravans and motorhomes are very flimsy at the best of times. I have also used Sikoflex 522 ( and soudal fix All) which is an adhesive and sealant and not to confused with bathroom sealants.

 

[Richtee180]

Thanks for the 2 sensible replies, I have already repaired the hairline cracks with JB weld, the first attempt failed because I didn't mix it well enough, but the second layer hardened perfectly.
I have painted over it with bath and tile paint, in 3 coats.
I originally did the suggested 2 coats but I had a bit of water come up the plug hole in the shower when the sink drained, and I didn't spot a patch of water at the back of the tray, so the next morning that patch was wet and yellow.
I dried it off and put another coat over the whole tray.
I'm leaving it to dry and harden for the next 10 days or so.
I spotted yellowing in the corners of the shower cubicle, so I figured it has sealant which needs renewing hence my question.
I have already Sikaflexed the sealant around the shower tray, prior to painting.

 

[Dustydog]

Not wishing to be picky. I read you were looking for a sealant for the shower tray installation. Now you are talking about cracks. I stand by my earlier comments for,sealing the shower tray.

Now repairs to cracks are different and there are a number of solutions.
Did you remove the tray to effect the repairs?

 

[sweeny500]

Why are you asking when there are products readily available that are purpose designed for the job?
Having used various makes over the years my only comment would be DONT buy cheap, go to a tile and bathroom company and buy theirs not the stuff from other highstreet outlets such X&Y. With silicone sealants you really dont get what you dont pay for, so dont skimp. Oh, and became full to REALLY clean the surfaces your are applying it to or the bead WILL fail.

He's asking because this is the place to ask!!!!!

 

[toad a caravan]

One reason for the cracking can be caused by placing unsuitable objects on the tray i.e water hogs aqua roll water carriers etc,once in transit on the road the movement of the caravan can cause it to get damaged.Good luck