Why use the kit?

Why use the kit?

Shower & Bath

Why should I use the Shower & Bath Kit?

We want you to use the best waterproofing products available on the market however it all depends on how much peace of mind you want with your new bathroom installation and the trade off this has with the additional costs. A good estimate is that 90% of water leaks happen at the ledge between the shower tray and bath and the wall. So, using Classi Seal or Classi Plus has you well covered for the majority of water leaks. However, with the Classi Kit for shower trays and baths it offers 100% waterproofing for the entire showering enclosure, not just the ledge between the shower tray or bath and walls. For added peace of mind use the Classi Kit for Shower Trays and Baths.


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How to use Classi Shower Tray & Bath Kit

Step 1

After fitting Classi Plus apply tile adhesive over upstand and wall. Apply membrane print side out starting at the bottom ensuring a minimum of 75mm overlap and a gap of approx 20mm from the corner. Press on firmly with the back of the trowel ensuring there are no air pockets.

Step 1

Step 2

Apply Classi corner and joint tape to the corners ensuring at least 75mm of overlap on membrane and upstand.

Step 2

Step 3

For extruding pipes push over Classi Pipe collars, bonding to the wall with tile adhesive and removing excess air.

Step 3

Step 4

As soon as the Classi membranes are applied to the wall, tiling can begin immediately in the normal way.

Tiling can begin immediately, no waiting time. Following tiling or wall panelling, finish with a Neutral Cure Sanitary Grade 100% Silicone.

Step 4



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I recently changed the design of my bathroom and used Classi Seal to ensure my bath with an overhead shower was fully waterproofed. The bathroom retailer and my plumber both recommended I use Classi Seal in my project and I’m so glad I did. High quality product that does exactly...
Chris