Kitchen & Bathroom Tile Waterproofing (No Demolition)

Waterproof Over Tile Solutions

Waterproof Over Existing Tiles With a Simple System

You don’t always need to remove tiles to stop water issues. If the tiles are stable, you can waterproof over tile with the right prep and coating steps.

ZDSpoxy is an epoxy resin manufacturer and waterproof coating supplier. We support custom systems and wholesale supply for contractors, projects, and distributors.

Quick Check: Is “Waterproof Over Tile” Right for You?

This method works best when:

Tiles are solid (no hollow sound, no loose corners)
The surface can be cleaned and sanded
You want a fast renovation with less downtime

You may need repair first if:

Many tiles are loose or hollow
Grout lines are broken and deep
There are wide gaps and cracks moving over time

If you’re unsure, send a photo of the tile surface + grout lines.

Recommended System (2 Steps + Key Prep)

For kitchen and bathroom tiles, the core idea is simple:

Step 1 — Handle Tile Gaps and Prep (Most Important)

If grout/tile gaps are about 3–5 mm, use an oil-based solvent-free epoxy primer and sand it as part of prep.

Also do these basics:

Degrease and clean (kitchens often have oil film)
Sand the tile surface (so the coating can bond)
Vacuum dust completely
Dry check (no standing water)

Step 2 — Apply a 2K Transparent Polyaspartic Coating

Apply a 2K clear polyaspartic coating directly to the tiles to achieve the waterproof effect.

Recommended Products

Below are common SKUs for tile waterproof renovation. We can also prepare a custom kit and offer wholesale pricing.

Product Model	Key Benefits	Typical Use	View More
ZDS1271AB	Solvent-free epoxy primer; strong adhesion & sealing; next step can be done after ~2 hours	Primer for tiles / dense surfaces; helps bonding and durability before topcoat	View ZDS1271AB
ZDS1990AB	2K clear polyaspartic waterproof coating; cures in 2–4 hours; good tear resistance on tiles	Clear waterproof topcoat for kitchen/bathroom tile renovation	View ZDS1990AB
ZDS1235AB (matte option)	2K matte clear polyaspartic; abrasion & scratch resistant; low VOC ≤50 g/L	Matte clear waterproof finish for kitchens/bathrooms; lower glare	View ZDS1235AB
ZDS1340AB (repair, optional)	Hydrophobic repair mortar; strong repair base; suitable for humid areas like bathrooms/kitchens	Patch weak spots, pits, and damaged grout/edges before primer	View ZDS1340AB
ZDS1090AB (alternate primer)	Epoxy primer for concrete/ceramic flooring; sealing & adhesion (PDF shows “ZDS1090 ab”)	Use when substrate is more porous or dusty (after proper prep)	View ZDS1090AB

Note on SKU format: This page uses full SKUs (e.g., ZDS1271AB). Ask us for a complete kit list and mixing guidance.

Clear vs Matte: How to Choose

Choose Clear Glossy

You like the original tile look
You want a “wet look” finish
The base tiles are clean and even

Choose Matte Clear

You want less glare
You want to hide small marks and uneven reflection
You prefer a softer, modern finish

If you want a colored look (not clear), tell us—ZDSpoxy suppocustom opti

Installation Overview (Easy Checklist)

Most failures come from skipping prep. Follow this order:

Clean & degrease (very important in kitchens)
Sand the tile surface (create bonding profile)
Vacuum dust (don’t trap dust under coating)
Repair weak spots if needed
Prime (thin and even)
Topcoat (even coat; don’t flood it)
Cure before water exposure

Tip: Two even coats are safer than one thick coat.

Typical Timeline (What to Expect)

Timeline depends on site conditions and chosen finish:

Prep + sanding: same day
Primer: can be followed by next step after ~2 hours for ZDS1271AB
Clear/matte polyaspartic topcoat: cures in ~2–4 hours at 25°C (product dependent)

For fast projects (hotel/public restrooms), tell us your time window and we’ll match the system.

Common Mistakes (Avoid These)

Coating over oil film (kitchen tiles)
Skipping sanding because “it looks clean”
Leaving dust in grout lines
Applying too thick in one pass (can trap bubbles)
Using the bathroom too soon (before full cure)

FAQs

Can I waterproof a balcony without removing tiles?

Sometimes yes—if tiles are stable and the surface is prepared correctly. If tiles are loose or hollow, removal and repair is safer.

What coating is best for outdoor UV?

Use a UV-stable topcoat for outdoor balconies. Epoxy is commonly used as a primer layer to improve adhesion.

Will the coating be slippery when wet?

It depends on finish. For wet balconies, choose a slip-resistant texture option.

Do you support wholesale and custom orders?

Yes. ZDSpoxy is a coating manufacturer and supplier. We support custom systems and wholesale supply.

Get a Balcony Waterproofing Recommendation

Tell us these 5 details, and we’ll reply with a complete system and a quote:

Surface type (concrete / tile / stone)
Area size (sqm or sqft)
Indoor or outdoor (balcony is outdoor)
Finish (clear / matte / colored)
Photos of cracks (close-up + wide shot)

We’ll recommend a custom system (repair + primer + topcoat) and offer manufacturer-direct wholesale pricing.