Microcement

Waterproof microcement and low in VOCs Efectto PU

The water-based polyurethane waterproof microcement: maximum mechanical resistance, low in VOCs and total protection in humid spaces.

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Efectto PU Big Grain 10 kg (component A)Efectto PU Big Grain10 kg (component A)Buy
  • 4Range
  • 16Colours
  • 2Packaging
  • 1Technical data sheets
01

What it is

Efectto PU, the waterproof microcement that redefines standards in construction and space renovation, stands out as the most mechanically resistant microcement low in VOCs on the market. Formulated with polyurethane, Efectto PU ensures efficiency, durability, and maximum protection in spaces exposed to humidity, making it the ideal professional choice for all types of projects, even the most demanding ones.

This microcement system facilitates application, optimising time without compromising quality. We make the difficult seem easy because professionals have never had it simpler: its water-based solvent-free formulation enables a waterproof and highly resistant finish, speeding up execution times for both indoor and outdoor projects. Once you try it, you’ll never look back.

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Moreover, our waterproof microcement carries the CE marking, certifying its compliance with the quality and safety standards required by European regulations.

02

Why choose Efectto PU waterproof microcement

Efectto PU brings waterproofing, hardness and sustainability together in a single system. These are the reasons why it has become the choice of the most demanding professionals.

  • Mixed microcement for efficient applications

    Designed to optimise professional projects without compromising the quality of the finish, Efectto PU is a waterproof mixed microcement that simplifies application by eliminating the need for mesh or pore fillers, thereby reducing steps and time. Even on vertical surfaces, its application is more efficient, allowing the use of a roller for quick and effective wall work. Forget complicated techniques: ease and efficiency in every layer.

  • Waterproof microcement before sealing

    Efectto PU is the best ally for humid spaces as it can even be applied to bathtubs. A microcement with no limits, perfect for areas in constant contact with water, such as bathrooms and kitchens, thanks to its waterproof capacity—even before sealing, which ensures total protection against moisture. Its formulation ensures your spaces always look flawless and well-protected. However, it is important to note that it is not designed for use in swimming pools due to the negative pressure that is generated.

  • The toughest waterproof microcement on the market

    With unmatched mechanical resistance, Efectto PU is ideal for enduring the most demanding conditions. Its exceptional abrasion resistance and ability to withstand the dragging of heavy objects make it the perfect choice for high-traffic and intensive-use areas. Thanks to its extraordinary durability, it maintains its appearance and functionality over time, establishing itself as the toughest waterproof microcement on the market.

  • Environmental commitment through low VOCs

    In addition to being the toughest microcement on the market, this system offers an added value: its components are non-toxic. Water-based and low in VOCs (volatile organic compounds), Efectto PU ensures a safe working environment and reduces environmental impact. It is a safe product for professionals and clients alike, posing no risks of allergies or irritations. By choosing Efectto PU, you opt for a microcement that ensures safe application and cares for the health of professionals, clients, and the planet.

  • Waterproof microcement that can be retouched

    The versatility of Efectto PU allows for easy retouching, making maintenance and space renewal simpler while optimising long-term costs and time.

  • Waterproof microcement with no limits for interior and exterior

    The waterproof microcement Efectto PU has no limitations. Not only is it effective indoors, but thanks to its UV resistance, this microcement ensures its colour and characteristics remain intact in outdoor applications, for example, on terraces. Efectto PU is a versatile mixed microcement for all types of projects, expanding design and functionality possibilities for any project.

  • Much better than epoxy

    The Efectto PU waterproof microcement matches the strength of an epoxy, while overcoming its limitations: it doesn't yellow when exposed to sunlight, making it ideal for outdoors, and its low VOC content ensures a reduced environmental impact, increasing its added value compared to epoxy.

03

Range

Waterproof microcement for preparation · Efectto PU Big Grain

Preparation coat for floors and walls, indoors and outdoors.

With a formulation designed to offer excellent durability, Efectto PU BIG GRAIN is the ideal granulometry for surface preparation in demanding projects. It guarantees a resistant, uniform finish and is also sustainable due to its low VOC content.

  • Maximum thickness per coat0,8 mm
  • Taber abrasion (CS17, 1000 g, 1000 c) UNE 4825061 mg
  • Shore D hardness (EN ISO 868:2003-10)59
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Yield
0,9 kg/m²
Packaging
Two components: component A in 10 kg containers and component B in 0.875 kg containers.
Instructions for use
Mix component A with ARCOCEM® PLUS toner and add component B in a 10:0.875 ratio. Apply 2 coats with the ATENEA burn-free steel trowel at 45°.
Packaging
  • 10 kg (component A) Buy

Waterproof microcement for flooring finishing · Efectto PU Medium Grain

Finish for floors and pavements with heavy traffic, indoors and outdoors.

For finishing demanding floors that endure heavy traffic, the Efectto PU MEDIUM GRAIN formulation ensures a resistant, homogeneous, and easy-to-apply finish.

  • Maximum thickness per coat0,5 mm
  • Taber abrasion (CS17, 1000 g, 1000 c) UNE 4825087 mg
  • Shore D hardness (EN ISO 868:2003-10)55
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Yield
0,45 kg/m²
Packaging
Two components: component A in 10 kg containers and component B in 0.875 kg containers.
Instructions for use
Over two previous coats of Efectto PU Big Grain, apply 1 coat of Efectto PU Medium Grain with the ATENEA trowel at 45°. Leave to dry for 12-24 h and sand with 80 grit.
Packaging
  • 10 kg (component A) Buy

Waterproof microcement for wall finishing · Efectto PU Small Grain

Finish for walls and vertical surfaces, indoors and outdoors.

With a formulation designed to offer excellent durability, Efectto PU SMALL GRAIN is the ideal granulometry for wall finishing. Simplicity and efficiency in every layer, as it can be applied with a roller on vertical surfaces, making the process faster and easier.

  • Maximum thickness per coat0,3 mm
  • Taber abrasion (CS17, 1000 g, 1000 c) UNE 48250122 mg
  • Shore D hardness (EN ISO 868:2003-10)51
See full details
Yield
0,25 kg/m²
Packaging
Two components: component A in 10 kg containers and component B in 0.875 kg containers.
Instructions for use
Over two previous coats of Efectto PU Big Grain, apply 2 coats of Efectto PU Small Grain (with a roller or trowel) at 45°. Leave to dry for 12-24 h and sand with 220 grit.
Packaging
  • 10 kg (component A) Buy

Component B of the waterproof microcement Efectto PU

Hardener (component B) of the Efectto PU system, in a 10:0.875 ratio.

Water-dispersible aliphatic polyisocyanate resin with low viscosity.

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High-performance product that acts as the component B of waterproof microcement Efectto PU. Solids >98%. Density: 1.15 ± 0.02 g/mL. Viscosity: 1100–1900 cps. Hexamethylene diisocyanate monomer < 0.1%. Component A+B ratio = 10:0.875. Packaging: 0.875 kg packages.

Packaging
0.875 kg containers.
Instructions for use
Add to the already pigmented component A in a 10:0.875 ratio and mix at low speed with a mechanical stirrer.
Packaging
  • 0.875 kg (component B) Buy
Technical comparison of the range

Technical comparison of the range

Efectto PU Big GrainEfectto PU Medium GrainEfectto PU Small Grain
Maximum thickness per coat0,8 mm0,5 mm0,3 mm
Taber abrasion (CS17, 1000 g, 1000 c) UNE 4825061 mg87 mg122 mg
Shore D hardness (EN ISO 868:2003-10)595551
Yield0,9 kg/m²0,45 kg/m²0,25 kg/m²
PackagingTwo components: component A in 10 kg containers and component B in 0.875 kg containers.Two components: component A in 10 kg containers and component B in 0.875 kg containers.Two components: component A in 10 kg containers and component B in 0.875 kg containers.
04

How to apply Efectto PU waterproof microcement

Efectto PU waterproof microcement is applied in several coats on both floors and walls, indoors and outdoors, always over levelled and consolidated substrates. Efectto PU is mixed in two components: component A (pigmented with ARCOCEM® PLUS toner) and component B in a 10:0.875 ratio. The step by step for floors and for walls is detailed below.

  1. 1

    Step 1. Level and clean the floor

    Level and consolidate the floor surface. Clean and dry it properly to remove dust, grease, and paint residues.

  2. 2

    Step 2. Prime the floor for perfect bonding

    Apply the appropriate primer according to the surface type: PRIMACEM® PLUS for non-absorbent surfaces. PRIMACEM® ABS for absorbent surfaces. For tiled floors or surfaces with joints, apply PRIMACEM® JOINT to fill the joints and allow 12 to 24 hours to dry before priming.

  3. 3

    Step 3. Mix waterproof microcement Efectto PU

    Mix Component A with a stirrer and add the ARCOCEM® PLUS colour toner. Then, add Component B to Component A in a 10:0.875 ratio and mix at low speed using a mechanical stirrer.

  4. 4

    Step 4. Apply waterproof microcement Efectto PU BIG GRAIN to floors

    Apply two layers of Efectto PU BIG GRAIN with our ATENEA anti-burn steel trowel. For optimal work, it’s essential to maintain a 45-degree application angle.

  5. 5

    Step 5. Drying and sanding

    Allow each layer to dry for 12 to 24 hours, then sand with 40-grit sandpaper to achieve a perfectly smooth and even surface.

  6. 6

    Step 6. Apply waterproof microcement Efectto PU MEDIUM GRAIN

    Apply 1 coat of Efectto PU MEDIUM GRAIN. It’s important to maintain the same application angle and use the ATENEA trowel.

  7. 7

    Step 7. Drying and sanding

    Leave to dry for 12 to 24 hours and sand gently with 80-grit sandpaper.

  8. 8

    Step 8. Sealing

    Finally, apply two coats of TOPSEALER® WT DRAGON sealer, allowing 18 to 36 hours of drying time between each application.

05

Waterproof microcement Efectto PU colors

Efectto PU is available in a wide range of colors ideal for any type of project:

  • Colour CairoCairo
  • Colour DakarDakar
  • Colour TunezTunez
  • Colour OranOran
  • Colour TangerTanger
  • Colour MaltaMalta
  • Colour AdraAdra
  • Colour SamosSamos
  • Colour BariBari
  • Colour DernaDerna
  • Colour OsloOslo
  • Colour MalmoMalmo
  • Colour TurkuTurku
  • Colour KemiKemi
  • Colour BergenBergen
  • Colour TibetTibet
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06

Frequently asked questions · Documentation

What makes Efectto PU different from other microcements?

Efectto PU is a water-based microcement formulated with polyurethane, guaranteeing waterproofing and high resistance in humid spaces. Unlike other microcements, it is simple and quick to apply, with no need for mesh or prior sealing.

Can it be used in bathrooms?

Yes, this waterproof microcement offers full protection against moisture, ensuring that bathrooms, even bathtubs, remain in perfect condition over time. However, it is not designed for swimming pools due to the negative pressure that is generated.

Is this waterproof microcement suitable for kitchens?

Absolutely. This system is ideal for kitchens, as its waterproof formulation effectively protects surfaces from splashes and humidity, maintaining its resistance and finish even before applying the final sealer.

How is waterproof microcement Efectto PU applied on vertical surfaces?

The waterproof microcement Efectto PU can be easily applied with a roller on walls, facilitating a professional finish on vertical surfaces. It’s perfect for achieving smooth, durable surfaces in less time.

Is it necessary to apply a sealer after waterproof microcement installation?

Yes, although it is waterproof from the outset, it is recommended to use a sealer such as TOPSEALER® WT DRAGON to maximise durability and abrasion resistance.

What surfaces are compatible with Efectto PU waterproof microcement?

Efectto PU waterproof microcement can be applied to a variety of substrates, such as floors and walls, both indoors and outdoors, thanks to its UV resistance.

Is Efectto PU waterproof microcement an eco-friendly option?

Yes, Efectto PU is a water-based microcement with low VOC content, making it safe for the environment and applicators, avoiding risks of irritation or allergies.

Can a surface with mixed microcement Efectto PU be easily renewed or repaired?

Yes, the mixed microcement Efectto PU can be retouched, allowing for touch-ups and maintenance without needing to remove the entire surface, facilitating renovation.

How long should I wait to use the area after waterproof microcement Efectto PU application?

After the final application and sealing, it is recommended to wait one week to achieve the product’s maximum resistance.

How should the surface be prepared?

It is essential to clean, dry, and level the surface, applying the appropriate primer according to the substrate type. This ensures optimal adhesion and a perfect finish.

What colors are available for Efectto PU waterproof microcement?

At Topciment, we offer a range of 16 shades of Efectto PU waterproof microcement, perfect for all styles.

Efectto PU technical data sheet
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