Drizoro Max Flex Express 35kg
MAXSEAL FLEX EXPRESS is a two-component, flexible waterproofing mortar designed for rapid application and fast curing. Formulated with liquid acrylic resins, special cements, additives, and graded aggregates, it is ideal for projects requiring immediate waterproofing performance.
With its extremely fast setting time, it allows tiling or flood testing in as little as two hours. It offers excellent adhesion and crack-bridging properties, ensuring long-lasting protection on concrete, brick, stone, block, and mortar substrates—even when damp. Suitable for civil, building, and industrial applications where speed and reliability are critical.
Takes ceramic tile, mortar or soil after 2 hours curing time
Recoat in 30 to 60 minutes, flood test at 72 hours
Applies to wet substrates with no primer or bonding agent
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Drizoro Max Flex Express 35kg
The Waterproofing Shop
22/872 Canterbury Road
Roselands NSW 2196
Australia
How to Use
Technical Specifications
Frequently bought together
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Drizoro Max Flex Express 35kg $358.95
Technical overview
Key applications
- Fast waterproofing in hydraulic works, swimming pools, water tanks and fountains
- Urgent waterproofing of roofs, terraces, balconies, planters and green roofs where sudden rainfall is a risk
- Fast indoor waterproofing of bathrooms, changing rooms and kitchens where fast tiling or opening to traffic is required
- Negative waterproofing of tunnels, galleries, basements, lift pits and underground parking
- Marine structures, bridges, foundations and retaining walls exposed to marine water and soil salts
- Wastewater treatment plants, underground structures and pipelines exposed to aggressive water
- Short-time curing before flooding tests, and splash zone areas
Surface suitability
- Concrete (saturated with water, excess drained, applied once the surface goes matte)
- Brickwork (saturated with water before application)
- Prefabricated block (saturated with water before application)
- Cement mortar render (structurally sound, firm and free of cement laitance)
- Natural stone
- Existing tiles (clean and free of grease, oils, curing agents and form release agents)
Avoid application if rain is expected within the first 2 hours. The working temperature range is 5C to 40C: do not apply below 5C, or if lower temperatures are expected within 2 hours after application, and never on frozen or flooded surfaces. Do not apply on water-repellent substrates, bituminous materials, paints or resin coating. Keep the powder to resin ratio as supplied and add no water, extra resin or other compounds. Do not spread the coating thin like paint or build it thicker than 1.5 mm. Covering with tile, mortar or soil is from 2 hours, but flooding tests and permanent water contact need 72 hours at 20C, and longer at lower temperatures or in sites without ventilation. Wash the surface down with a water hose before permanent water immersion. Component B causes severe skin burns and eye damage, may cause an allergic skin reaction and may cause respiratory irritation: wear protective gloves, clothing and eye protection.
Calculate your coverage
You will need:
Drizoro Max Flex Express 35kg
35kg kit
Total coverage: 0 m²
This is an estimate only. Add 10% for wastage.
Technical Specifications
| Product Classification | Two-component flexible cement waterproofing mortar for very fast waterproofing works |
| Chemical Base | Component A liquid acrylic resins; Component B special cements, additives and well-graded aggregates |
| CE Marking | EN 1504-2, mortar for protection of concrete, coating (C) |
| Colour | Component A milky white liquid; Component B grey powder; supplied in grey |
| Density Component A | 1.05 +/- 0.10 g/cm3 |
| Density Component B | 1.35 +/- 0.10 g/cm3 |
| Density Fresh Mortar | 1.50 +/- 0.10 g/cm3 |
| Minimum Application Temperature | Greater than 5C, substrate and ambient |
| Working Temperature Range | 5C to 40C |
| Pot Life | 30 minutes at 20C, 50% RH |
| Waiting Time Between Coats | 30-60 minutes minimum, 24 hours maximum |
| Covering With Ceramic Tile, Mortar or Soil and Gravel | 2 hours |
| Flooding Tests and Permanent Water Contact | 72 hours at 20C |
| Maximum Positive Water Pressure | Greater than 4 bar (EN 12390-8) |
| Maximum Negative Water Pressure | Greater than 1.5 bar (EN 12390-8) |
| Water Vapour Permeability | Class I permeable, 6.8 g/m2 day, SD 3.0 m (EN ISO 7783-1/-2) |
| Capillary Absorption and Water Permeability | 0.01 kg/m2 h0.5 (EN 1062-3) |
| CO2 Permeability | SD 83 m (EN 1062-6) |
| Tensile Strength | Greater than 1.0 MPa (UNE 53510) |
| Elongation at Break | Greater than 40% (UNE 53510) |
| Adhesion on Concrete at 28 Days | 1.5 MPa (ASTM D4541) |
| Potable Water Contact | Suitable |
| Recommended Coating Thickness | 1.0-1.5 mm per coat, two coats |
| Consumption | 1.0-1.5 kg/m2 per coat, 2.0-3.0 kg/m2 total; about 3.5 kg/m2 over two coats when reinforced with DRIZORO MESH 58 |
| Pack Sizes | 35kg set (10kg can Component A + 25kg sack Component B) and 7kg set (2kg can + 5kg can) |
| Shelf Life | 12 months unopened, stored 5C to 35C, dry, covered and protected from moisture, freezing and direct sunlight |
| Hazard Classification | Component A not classified as hazardous; Component B signal word Danger, H314, H317, H335, contains portland cement |
Frequently asked questions
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When use Maxseal Flex Express vs standard Maxseal Flex?
CompatibilityMaxseal Flex Express has a 30-60 minute recoat time and 2-hour tile-ready window - ideal when you need to flood-test or tile the same day. Standard Maxseal Flex is more economical for projects that can wait 16-24 hours between coats.
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How fast can I tile or flood-test?
PerformanceTiling possible 2 hours after the second coat at 20°C. Flood testing and full water immersion service in approximately 2-4 hours depending on conditions. Plan project schedules around this fast-track timing.
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How is it applied?
InstallationMix Component A (liquid) and Component B (powder) with a slow-speed drill. Apply two crossed coats at 1.0-1.5 kg/m² per coat (2.0-3.0 kg/m² total) by brush or broom onto a saturated substrate. No primer required.
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Suits damp substrates?
CompatibilityYes. Maxseal Flex Express applies to damp (not saturated) concrete, brick, stone, block, and mortar without requiring full substrate drying. Critical for fast-track work on green concrete or freshly saturated structures.
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Standards compliance?
ComplianceCE marked with Declaration of Performance. Typically certified to EN 14891 (waterproofing under tile adhesives) and EN 1504-2 (concrete protection). Resists saltwater, chemicals, freeze-thaw, and is potable water contact safe.
Why trade professionals choose Drizoro
Drizoro is a Spanish manufacturer of cement based waterproofing and concrete repair products, supplied to the Australian trade through The Waterproofing Shop. The range on this site covers Maxseal Foundation and Maxseal Flex, along with repair mortars, grouts, joint products and mesh, used on concrete and masonry where water has to be held back rather than simply shed. Choosing between the rigid and the flexible grade is the key decision, and it comes down to the substrate, the direction of the water and how much movement the structure is likely to see.
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