Leaks in tiled areas are one of the most common and costly issues across residential and commercial projects. Traditionally, fixing these problems meant removing tiles, re-waterproofing, and retiling — time-consuming, expensive, and disruptive.
ACTFLEX 400 CLEAR changes that completely.
WHAT IS ACTFLEX 400 CLEAR
ACTFLEX 400 CLEAR is a transparent waterproofing coating membrane designed to be applied directly over existing tiles, pavers, and masonry surfaces.
It forms a flexible, UV-resistant waterproof barrier while maintaining the original appearance of the surface.
This makes it a practical solution for situations where demolition is not viable.
WHAT PROBLEM DOES IT SOLVE
Most tiled leaks come from:
- Failed grout joints
- Cracked tiles
- Movement in substrates
- Aged or failed membranes underneath
ACTFLEX 400 CLEAR works as a topcoat waterproofing system, sealing the surface and preventing water ingress without removing tiles.
WHERE IT IS USED
ACTFLEX 400 CLEAR is suitable for:
- Tiled balconies and terraces
- Showers and wet areas
- Courtyards and podiums
- Face brick walls
- Timber and sealed surfaces
- Terracotta tiles and pavers
It is ideal for maintenance work, remedial waterproofing, and fast leak control.
KEY BENEFITS
-
No Tile Removal
Apply directly over existing surfaces. Eliminates demolition and reduces labour costs. -
Clear Finish
Dries transparent with a semi-gloss finish, maintaining the original look of tiles or substrate. -
Fast Leak Control
Provides a rapid solution to active leaks, especially in occupied buildings. -
UV Resistant
Suitable for exposed areas such as balconies and external surfaces. -
Foot Trafficable
Once cured, it can handle light foot traffic. -
Simple Application
Single-pack system applied by roller, brush, or trowel.

HOW TO APPLY ACTFLEX 400 CLEAR
1. Surface Preparation
- Ensure surface is clean, dry, and structurally sound
- Remove loose grout and replace if required
- Repair cracks using suitable sealants (e.g. MS Polymer)
- Ensure moisture content is below 4%
2. Mixing
- Mix at 2 parts ACTFLEX 400 : 1 part water
- Mechanically stir for consistency
3. Application
- Apply using roller, brush, or trowel
- Apply 2–3 coats
- Allow minimum 4 hours between coats
- Apply all coats within 48 hours
4. Curing
- Touch dry: approx. 2 hours
- Waterproof in approx. 3 hours
- Full cure: 5–7 days

SLIP RESISTANT OPTION
For external areas:
- Broadcast silica sand into the first coat
- Remove excess
- Apply additional coats over the top
This improves safety in trafficable zones.
IMPORTANT LIMITATIONS
- Not suitable for areas with ponding water
- Not a solution for rising damp or hydrostatic pressure
- Requires completely dry substrate before application
- Designed as a temporary leak solution (up to 5 years)
WHO SHOULD USE IT
ACTFLEX 400 CLEAR is widely used by:
- Waterproofers
- Tilers
- Builders
- Maintenance contractors
- Property owners needing immediate leak control

WHY IT’S IN HIGH DEMAND
This product consistently sells out because it solves a real on-site problem:
- No demolition
- Fast turnaround
- Cost-effective
- Minimal disruption
For occupied buildings, strata work, and urgent repairs, it is one of the most practical solutions available.
NOW BACK IN STOCK
ACTFLEX 400 CLEAR is now available again at The Waterproofing Shop.
Stock does not last long due to demand.
Got leaks? We’ve got your back.
Visit: 22/872 Canterbury Road, Roselands
Call: (02) 8021 3517
Email: sales@thewaterproofingshop.
Secure your stock before it runs out again.




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