Terrace, Balcony & Outdoor Floor Waterproofing

Terrace, Balcony & Outdoor Floor Waterproofing Solutions

Stop Leaks with a Simple 3-Step System

Balcony leaks often start with small cracks. Rainwater gets in, then spreads under the surface. Over time, you may see stains, peeling paint, or a mold smell.

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

If you want results that last, follow the right order: Repair → Prime → Topcoat.

Quick Check: Do You Need Waterproofing?

You likely need a waterproof system if you see:

Water stains on the ceiling below the balcony
Hairline cracks on the floor
Loose tiles, hollow spots, or grout gaps
Peeling near the balcony door
Mold smell after rain

Not sure? Send us 2 photos (close-up + wide shot). We’ll recommend a system.

Recommended Balcony Waterproofing System (3 Steps)

Step 1 — Repair Cracks and Weak Areas

Goal: stop water paths under the coating.
Repair cracks, holes, and hollow areas first. If you skip this step, the topcoat may fail early.

Tip: moving cracks need flexible repair. Deep damage needs stronger repair mortar.

Step 2 — Apply an Epoxy Primer

Goal: make the coating stick and seal the surface.
A primer helps with adhesion and reduces bubbling. It also “locks down” dusty concrete.

Primer matters most when:

the surface is old and dusty
you repaired patches
the floor is smooth after grinding
you want longer service life

Step 3 — Seal with a UV-Stable Waterproof Topcoat

Goal: protect from rain, sun, and daily wear.
Outdoor floors need weather and UV resistance.

Finish options (custom):

Clear glossy: shows the base surface
Clear matte: lower glare, hides small marks
Colored: covers stains and patch marks

If you need safer walking when wet, ask for a slip-resistant texture option.

Recommended Products (Repair + Primer + Topcoat)

ZDSpoxy is a manufacturer-direct supplier. Below are common choices for balcony and terrace waterproofing. We can also build a custom kit and offer wholesale pricing.

Product Model	Key Benefits	Typical Use	View More
ZDS1340AB	Hydrophobic repair mortar; strong repair base; supports >1–2 mm mid-layer filling	Repair cracks, pits, weak spots; patching before primer on balconies/terraces	View ZDS1340AB
ZDS1271AB	Solvent-free epoxy primer; strong adhesion; sealing; fast recoat (next step after ~2h)	Primer for dense surfaces / tile zones / areas needing stronger bond	View ZDS1271AB
ZDS1090AB	Epoxy primer; seals substrate; improves durability; chemical resistance	Primer for concrete/ceramic flooring; good for porous or dusty substrates	View ZDS1090AB
ZDS1990AB	2K clear polyaspartic waterproof coating; fast cure (2–4h @25°C); low VOC	Clear waterproof topcoat for balconies/terraces; keeps original look	View ZDS1990AB
ZDS1140AB	2K polyaspartic colored coating; fast cure (2–4h @25°C); indoor/outdoor; low VOC	Colored waterproof topcoat for balconies/outdoor ground; covers stains/patch marks	View ZDS1140AB

Want one-box ordering? Ask for a Balcony Waterproofing Kit (repair + primer + topcoat) with manufacturer-direct pricing.

Surface Prep (Simple, but Critical)

Most failures come from poor prep. Keep it clean and consistent:

Clean: remove dust, oil, loose coating
Repair: cracks and weak spots first
Sand / grind: improve adhesion (important on smooth floors)
Dry check: avoid standing water before primer
Prime: thin, even coat
Topcoat: follow recommended thickness and recoat time

Do not apply one thick coat. Two even coats are safer.

Clear vs Colored: How to Choose

Choose Clear

you like the original stone/texture look
the base is clean and even
you want a “wet look” finish

Choose Colored

the floor has stains, patch marks, or mixed colors
you want a fresh new look
you need better visual coverage

We support custom colors for project matching.

Typical Timeline (What to Expect)

Every site is different, but many balcony projects follow this flow:

Day 1: prep + repair
Day 2: primer + topcoat
Light foot traffic: often same day or next day (system dependent)
Full performance: after full cure

If you have a tight deadline, tell us your schedule. We can recommend faster-curing options.

Common Mistakes to Avoid

coating over dust or weak concrete
skipping primer to “save cost”
applying one thick coat (can trap bubbles)
ignoring edges, joints, and drains
rushing cure time before rain exposure

A balcony is tested by rain. Small mistakes show up quickly.

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.

Terrace, Balcony & Outdoor Floor Waterproofing