Is there such thing as waterproofing for tiles?
 

Yes there is, Remedial Membranes, Clear Waterproofing Membrane was released in 2015 and has lead the way for Remedial Waterproofing Applications. They have over 23 DIY videos on how to do each aspect of the installation and offer full helpdesk support. You can check them out here: https://www.remedialmembranes.com/ or AUS https://www.remedialmembranes.com.au/

thanks for sharing

Important information, thank you so much!