Cristal Harpia

TECHNICAL SHEET

Feature	Index
Apparent density	2.620Kg/m3
Apparent porosity	0,53%
Water absorption	0,20%
Uniaxial compression	131,45 MPa
Freezing and thawing	122,28 MPa
Bending by 3-point loading	15,83 MPa
Bending by 4-point loading	9,70 MPa
Abrasion wear 1,000m	Not informed

Reference standard 15.845/2015

Harpia Crystal Quartzite Beneficiation Techniques

The Cristal Harpia is a Quartzite Mined in Lagoa Grande, Pernambuco, Brazil, it has a predominantly ice-gray color, richly marked by dark gray veins of sericite and other minerals. This rock can be used in a wide variety of applications, such as gourmet islands, countertops, panels, interior flooring, stairs, tables, and other finishes. This versatility makes it ideal for any project. It's a 100% quartz material with traces of sericite as an accessory mineral. In addition to its high hardness, this material also has very low porosity, which aids in specifications for high-use areas such as kitchen islands and countertops. Its translucency aids in the specification of projects with backlighting, demonstrating the unique beauty of this material. Despite all these advantages, this material is not recommended for outdoor use due to the possibility of the resin changing color when exposed to sunlight.

IMPORTANT INFORMATION TO THE MANUFACTURER (marbler)

Beneficiation data

The correct selection of inputs for manufacturing this product directly impacts production costs and the final quality of the finished part. Assuming the equipment used is in good condition, the cooling system water is clean, and there is no solid waste circulating through it, the following are recommendations for the inputs required for successful processing:

Cutting methodology: to ensure the quality of cuts and grinding, we recommend diamond discs, saws, cups and grinding wheels made of soft metal alloy. In Brazil, we recommend tools from Pyramid model PR30 (same used in Dekton), Performance Model PS 32 – 350mm,

Waterproofing in the cutting area: As it is a product with very low water absorption and few pores, it is not necessary to waterproof the areas.

Gluing the pieces: To ensure the quality of the gluing of the pieces, we recommend the following glues:

Brazil and abroad: Platinum, from AKEMI / Titanium, from Tenax / Spezial tak, from Bellinzonni. Because this material is prone to minor oxidation, it is necessary to identify with the manufacturer which pigment to use to adjust the color of the glue.

NOTE: It's important to strictly follow the manufacturer's recommended glue-catalyst ratio. Remember that in mild temperatures, the glue requires a little more time to cure. It's important to remove the protective screen at the cutting site to ensure full adhesion of the glue.

Laying parts on vertical panels: For installing vertical panels, bench tops, and baseboards, we recommend using PU 40 polyurethane adhesive; remember that the wall surface must be level and free of dust and other dirt. After applying PU 40 and installing the piece, we recommend waiting the manufacturer's suggested curing time before releasing the area for use. For mortar, always use white ACII, as per the brands suggested in the topics below.

Product recommendation: Hybrid glue AK 100 – AKEMI, TK PU40 white – AKEMI, PU 40 multi gray – Barone, PU 40 – Tekbond

NOTE: In the case of backlit panels, we recommend placing a translucent white canvas between the LED panel and the crystal to prevent the LED from appearing in front of the panel when lit.

IMPORTANT INFORMATION FOR THE INSTALLER

Flooring installation: This material is not widely used for flooring, but for installations, we recommend using mortar with high chemical adhesion and flexible properties. For grouting, we recommend a waterproof and flexible product. Although this material is very hard, it has low thermal expansion, so it is essential to respect the expansion joints between the tiles and between the tiles and the walls.

Recommended products: Quartzo D mortar, from the manufacturer AKEMI / Flexible white ACIII cement mortar, from Quartzolit / or Votoran white ACIII internal/external Votomassa mortar.

AKEMI Premium Super Flexible Polymer Grout or Quartzolit Epoxy Grout,

NOTE: Although it is highly scratch resistant, this material is not recommended for outdoor flooring, as it can yellow over time.

Post-construction cleaning and protection: All post-construction cleaning must be carried out using water and neutral detergent to remove residue. The use of acidic detergents is not permitted, as this type of detergent damages the waterproofing protection and the resin layer applied to the pores and fractures of the rock.

Recommended products: Post-work floor cleaner detergent, from the manufacturer Bellinzonni / PCS Alcalino, from Piso Clean / Basic Cleaner detergent, brand AKEMI / or Alka Flor, from the manufacturer Chemistone.

Post-construction protection: For this material, it is not necessary to apply waterproofing after construction, just cleaning with water and neutral detergent.