Primers for microcement | Primacem

Primacem® is our line of primers for microcement and other materials such as tile, concrete or tiles, among others. These products are essential as they are the first step in the process of applying microcement. Their function is to facilitate the bond between the existing substrate and the new coating.

Our range of primers offers different possibilities and solutions depending on the surface to be coated. A wide range in which we find adhesion promoters primers that meet the specific needs of each substrate so that the result is optimal.

Thus, we have primers for absorbent surfaces, primers for non-absorbent surfaces, tacking effect primers, aggregate primers, epoxy primers, as well as fillers and smoothing putties.

To ensure optimum consolidation, it is important to follow the steps and recommendations for use of each primers for microcement and other substrates that we manufacture.

Below we present the complete repertoire of primers for microcement that form the Primacem® family

PRIMAPOX 100 FLUID

100% Solids Epoxy Primer

Primapox® 100 Fluid is a solvent-free epoxy primer with 100% solids content. As a two-component product, it is specially designed for use as a primer and bonding agent on mineral and porous substrates prior to the application of finishes with epoxy, polyurethane or acrylic resins.

This epoxy primer has very low viscosity for substrates with a moisture content equal to or less than 4%. It can be applied using a trowel, notched trowel, rubber float, roller or brush.

Among its qualities, it stands out as an epoxy primer with good chemical, mechanical, and water resistance. Ideal for floors, walls, pipes, and conduits, as well as general maintenance and tanks.

Download the technical data sheet for Primapox® 100 Fluid here

Technical Features of 100% Solids Epoxy Primer

Density

1.13 ± 0.02 g/mL Component A
1.03 g/mL (25ºC) Component B

Pot-life (23ºC)

20 ± 5 minutes

Shore D Hardness

81 (at 7 days)

Drying Time

Touch dry (23ºC): 6 - 8h
Cured (23ºC): 7 days

Performance

The performance of the two-component 100% solids epoxy primer Primapox® 100 Fluid will vary depending on the intended use and application, as well as the roughness and porosity of the substrate. In general, it ranges from 0.15 - 0.3 kg/m².

Packaging

Primapox® 100 Fluid epoxy primer is available in containers of:
3.4 kg (Component A) + 1.6 kg (Component B)
13.4 kg (Component A) + 6.6 kg (Component B)

PRIMACEM FIX

Primacem® Fix 5L

Primer with tacking effect

Primacem® Fix is a ready-to-use primer for microcement with a tacking effect that favours the adhesion of the existing and the new microcement substrate.

A tacking effect primer with high adhesion power and highly recommended as a bonding bridge between new and old concrete and mortar. Water-based product and therefore low sensitivity to water.

A tacking effect primer that is highly resistant to alkalis and adheres easily and quickly to different substrates. It comes in ready-to-use packaging and is applied in one coat by brush or microfibre roller.

Download the Primacem® Fix data sheet here

Technical characteristics of tacking effect primer

Between 8 and 9

Dry to the touch

Permanent Tack

Brookfield RVT viscosity at 20ºC (3/20rpm)

1700-2200 mPa•s

Maximum thickness

60 μm

Consumption

The consumption of Primacem® Fix tackifying primer is 0.10 L/m2 with 1 coat.

Packaging

Primacem® Fix tack effect primer is packaged in 5 and 25 litre containers.

PRIMACEM PLUS

Primacem® Plus 5L

Primer for non-absorbent surfaces

Primacem® Plus is our primer for non-absorbent surfaces prior to the application of, in particular, microcement. A primer which is an aqueous acrylic polymeric polymeric dispersion.

A primer for non-absorbent, water-based surfaces in ready-to-use packaging. A product that is designed to be applied either by roller or brush in one coat. For tiles, two coats will be necessary.

It is perfect for use on materials such as tiles, ceramics or flagstones. Primer for non-absorbent surfaces completely free of plasticisers, solvents, ammonia and emulsifiers.

Download the Primacem® Plus technical data sheet here

Technical characteristics of primer for non-absorbent surfaces

Between 8 and 9

Dry to the touch

30 minutes

Density (UNE-EN ISO 2811-1)

1.05 ± 0.05 g/cm³

VOC's

<\5 g/L

Performance

The performance of Primacem® Plus microcement primer on non-absorbent surfaces is 8-12 m²/L.

Packaging

Primacem® Plus adhesion promoter is supplied in 1 and 5 litre containers.

PRIMACEM ABS

Primacem® ABS 5L

Primer for absorbent surfaces

Primacem® ABS is the primer indicated for microcement on absorbent surfaces. An acrylic dispersion in an aqueous medium that is used as a primer before applying microcement.

Water-based, this primer for absorbent surfaces is also perfect for use on materials such as plaster or plasterboard. A product free of plasticisers, solvents, ammonia and emulsifiers.

A primer for absorbent surfaces that is packaged ready to use and can be applied by brush or microfibre roller in one coat.

Download the Primacem® ABS technical data sheet here

Technical characteristics of primer for absorbent surfaces

Between 7 and 8

Dry to the touch

30 minutes

VOC's

<\5 g/L

Density (UNE-EN ISO 2811-1)

1.02 ± 0.05 g/cm³

Performance

The performance of Primacem® ABS microcement primer on absorbent surfaces is 8-12 m²/L.

Packaging

Primacem® ABS adhesion promoter is supplied in 1 and 5 litre containers.

PRIMACEM GRIP

Primer with aggregate

Primacem® Grip is an aggregate primer that can be applied to both interior and exterior surfaces. A primer that is based on acrylic resins in aqueous dispersion.

A primer with aggregate that provides excellent adhesion on smooth or low absorption substrates, generating a rough surface. It is therefore highly recommended for use on plaster, tiles, concrete, ceramic or hydraulic tiles as well as microcement.

A ready-to-use aggregate primer that facilitates anchoring and allows the creation of rough textures. It is applied by brush or roller in one coat.

Download the Primacem® GRIP technical sheet here

Technical characteristics of the primer with aggregate

Between 7,5 and 9

Apparent density

1,5 ± 0,05 g/cm³

Dry to touch

Between 2-3h, depending on the applied thickness and environmental conditions.

Polymer type

Acrylic

VOC

<\1 g/L

Performance

The performance of the primer with Primacem® Grip aggregate is 5-3 m²/kg.

Packaging

Primacem® Grip Aggregate Primer is packaged in 5 kg containers.

PRIMAPOX 100 BARRIER

Anti-moisture epoxy primer

Primapox® 100 Barrier is an anti-moisture epoxy primer designed to block rising damp and acts as a vapour barrier. It is noted for its excellent workability, low viscosity and high adhesion to the substrate.

A two-component, 100% solids epoxy primer that can be applied on wet concrete. It is perfect for avoiding the sticking of tile joints on microcement.

Primapox® 100 Barrier is an anti-humidity epoxy primer compatible with microcement, tiles, ceramics, and even wet concrete, among many other materials.

Download the Primapox® 100 Barrier data sheet here.

Technical characteristics of anti-moisture epoxy primer

Density (DIN 53 217, T4)

Component A 1,13 g/cm3

Component B 1,02 g/cm3 (23ºC)

Viscosity A+B (DIN 53 015)

600-800 mPa.s

Pot-life (20ºC)

20 minutes

100% Solids

Performance

The performance Primapox® 100 anti-moisture epoxy primer depends on the intended use and application, as well as the roughness and porosity of the substrate. Typically it is 0.3 - 1 kg/m².

Packaging

Primapox® 100 Barrier is packaged in containers:
3.1 kg (Component A) + 1.9 kg (Component B).
12,4 kg (Component A) + 7,6 kg (Component B)

PRIMACEM JOINT

Filling putty

Primacem® Joint is a filling putty specially designed for the purpose of filling the joints of tiles and ceramic tiles, two of the most common materials used in kitchens and bathrooms.

A filling putty that can be applied both indoors and outdoors. Its excellent adhesion, quick drying and sanding properties are some of its most important features.

Primacem® Joint is very versatile. It can be applied on tiles, ceramics, plaster, plasterboard, concrete, bricks and mortar, among other materials. An ideal filling putty for our ready to use microcement, Efectto Quartz.

It guarantees good resistance to water and environmental humidity. It is also a filling paste that is very easy to apply and, after complete drying, retains its flexibility intact.

Download the Primacem® Joint technical data sheet here.

Technical characteristics of the filling putty

Density

1.6±0.1 g/cm³

Application thickness

Up to 4mm per coat

Touch dry

5-6 hours

Full drying

8-10 hours

Performance

Applied on tile joints:
- 0,24 kg/m2/mm approx.

Packaging

Primacem® Joint filling putty is available in 1,5 and 3 kg packaging.

PRIMACEM FLEX

Bonding primer for mortars

Primacem® Flex is a styrene-butadiene primer designed to serve as a bonding primer between new and old mortars. It significantly enhances the adhesion properties of all types of mortars.

A bonding primer for mortars that provides strength, consistency, and reliability to new coatings. It stands out for its easy application and ready-to-use formulation.

Download the technical datasheet for Primacem® Flex here

Technical Characteristics of the bonding primer for mortars

Composition

Styrene-Butadiene

Appearance

Milky white liquid

Non-volatile content (UNE-EN ISO 3251:2020)

34-35%

Density (UNE-EN ISO 2811-1)

1,02±0,05 g/cm

Performance

The performance of the Primacem® Flex bonding primer for mortars is 10-12 m²/L.

Packaging

The Primacem® Flex bonding primer for mortars is available in 5L and 25L containers.