Τerrazzo | Decorative floor screed with a modern terrazzo look
Terrazzo is making a strong comeback, ranking among the top global design and architectural trends with its distinctive vintage aesthetic and the great number of practical benefits offered through the use of high-quality contemporary materials by ISOMAT. Delivering incredibly durable, monolithic surfaces providing a modern take on an ancient aesthetic, it is ideal for both new-build or refurbishment projects. Suitable for interior and exterior applications in residential or commercial spaces, hotels, restaurants, etc.
The decorative Terrazzo flooring by ISOMAT is composed of:
- DUROCRET-TERRAZZO high-strength white cementitious mortar-binder, which can be colored with ISOMAT DECO-COLOR high-quality inorganic powder pigments delivering numerous shades, and
- ISOMAT NATURAL COLORED STONES.
Their combination gives virtually infinite color and design possibilities, satisfying any decor or taste while adding character and visual interest to the project.
ISOMAT’s transparent, UV-stable polyurethane varnishes, in gloss or satin-matt finish, are used for sealing and protecting the system.
Advantages and Benefits
- Modern terrazzo look – Dominant architectural trend
- Wide range of color combinations
- Seamless, smooth surface visually enlarging the space while ensuring better hygiene thanks to easier cleaning
- Unique aesthetic result loaded with character
- Pourable flooring, adaptable to architectural design
- UV and abrasion resistance for floors guaranteed to stand the test of time
- Non-porous surface, making it ideal for exterior application
The substrate must be clean, free of dust, oil or grease, loose material and other contaminants. Care must be taken to fill all surface imperfections such as cracks or holes with suitable materials. Porous substrates (e.g. concrete, microcement, etc.) should be first primed with the acrylic primer FLEX-PRIMER, while non-porous substrates (e.g. old tile layers etc.) should be primed with ISOMAT SUPERGRUND. DUROCRET-TERRAZZO should be applied after the primer has dried completely.
Application of the decorative flooring
DUROCRET-TERRAZZO is slowly added to a container with clean water under continuous stirring until a mixture of the desired workability is obtained. For a colored floor screed, it is recommended that the desired ISOMAT DECO-COLOR pigment amount be dissolved in the mixing water. Then, ISOMAT NATURAL COLORED STONES are added to DUROCRET-TERRAZZO at the recommended dosage. Mixing is carried out with a low-speed mixer until uniform distribution in the mortar is achieved.
The mixture is applied onto the prepared surface with a metal trowel to a thickness of 1-2 cm. Next, the surface is leveled and smoothed with a metal screed bar. On the fresh DUROCRET-TERRAZZO surface (within 15-20 minutes from its leveling) the special acrylic curing agent for fresh concrete ISOCURE-A is applied.
After 24 to 48 hours, depending on the weather conditions, the decorative floor is mechanically treated, polished and finished off with either a terrazzo grinding and polishing machine or an electric palm sander followed by sandpaper (usually selected for small-scale projects, details, or difficult-to-reach surfaces).
Then, the surface should be thoroughly cleaned of dust with a high-suction vacuum cleaner. Minor holes, pores, etc. created in the DUROCRET-TERRAZZO surface due to mechanical treatment are filled with WHITE 52,5 special binder based on white cement. If DUROCRET-TERRAZZO is to be colored, then WHITE 52,5 should be colored in the same color as DUROCRET-TERRAZZO.
Application of varnish
Two-three days after the completion of the application, provided that the surface is dry, the decorative terrazzo floor screed should be protected with VARNISH-PU 2K transparent, UV-stable, polyurethane solvent-based varnish (gloss or satin) or VARNISH-PU 1K one-component, transparent, UV-stable, polyurethane solvent-free (satin-matt), with at least 2 layers.
These varnishes may darken the decorative surface. If this is not desired, it is recommended that the surface be impregnated with VS-W acrylic water-based varnish or VARNISH-PU 2KW polyurethane water-based varnish prior to application of VARNISH-PU 2K or VARNISH-PU 1K, respectively.
For safe flooring applications in food and beverage handling and processing facilities, the use of the certified, transparent, two-component, UV-stable, polyurethane water-based varnish with satin-matt finish VARNISH-PU 2KW can also be used as a final protective layer.