KARELLIS

Product catalog summary

Introduction
Mermet, founded in 1951, specializes in sunscreen fabrics designed to improve comfort in living and working environments. Their products address sun filtering, acoustic enhancement, glare reduction, and privacy needs.

Product Features
The KARELLIS fabric is a darkening sunscreen fabric with key features including being fire retardant, lead-free, EU-made, REACH compliant, offering a 5-year warranty, printable, PVC-free, and having reversible colors and a slim design.

Technical Specifications
The fabric is composed of 65% Polyester and 35% Polyurethane, with a width of 300 cm and a roll length of 33 lm. It has a surface mass of 290 g/m² ± 10% and a color fastness of ≥ 6.

Mechanical Properties
Breaking strength is Warp > 150 daN/5 cm and Weft > 70 daN/5 cm. Elongation at break is less than 20% for both Warp and Weft. Tear strength is Warp ≥ 9 daN and Weft ≥ 5 daN.

Fire Certificates
The fabric is certified in Germany (B1), EU-Spain (Class 1), France (M1), and the UK (Type B).

Processing and Maintenance
Recommended cutting methods include cold knife, crush cut, or ultrasonic. Thermal welding with weldable tape is advised. Cleaning involves dust removal and washing with soapy water.

Thermal and Visual Properties
Evaluated according to EN 14501:2021 and ISO 52022-3:2017 standards, the fabric's solar and light control properties focus on thermal and visual comfort.

Optical and Thermal Factors
Solar radiation management involves transmission, absorption, and reflection, with performance measured by solar transmittance, reflectance, absorptance, and solar factor.

Acoustic Properties
Sound absorption potential is evaluated according to ISO 354:2003 and ISO 10534-2:2023 standards.

Advice and Care Instructions
Handling recommendations include rolling panels on a tube during assembly and using cotton gloves to prevent fingerprints on metallised fabrics.

Warranty
The product comes with a 5-year warranty, ensuring long-term reliability and performance.

Guarantee
The fabrics have a five-year guarantee under normal usage and maintenance conditions as outlined in the technical specifications and Mermet's maintenance recommendations.

Care Instructions
Handle fabrics with clean, dry hands; gloves are recommended. Avoid scrubbing, solvents, or abrasive substances. Ensure blinds are raised during window cleaning.

Handling Recommendations
Roll panels on a tube during production to prevent marks. Use a clean, dust-free surface for fabrics with a white acrylic backing. Gloves are necessary for metallic-coated fabrics.

Storage Conditions
Store fabrics in original packaging, use individual cardboard tubes, store rolls horizontally, avoid temperatures above 45°C, and do not fold fabrics.

Maintenance
Handle fabrics with care, use clean and dry hands, avoid strong rubbing, solvents, or abrasive substances, and ensure blinds are rolled up during window cleaning.

Additional Information
Visit www.mermet.eu.com for more information on Mermet's sunscreen fabrics.

Catalog excerpts

KARELLIS Darkening The original sunscreen fabric

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THE ORIGINAL SUNSCREEN FABRIC We are Mermet. We are the original sunscreen fabric. Somos Mermet. Los pioneros del tejido de protección solar. Since 1951, our passionate team of experts is on a mission to help create comfortable and pleasant places to work and live in. Desde 1951, nuestro equipo de expertos apasionados por su trabajo se dedica a ofrecer unos lugares confortables y agradables para trabajar y vivir. At Mermet, we create sunscreen fabrics for people, not buildings. Whether you want to filter out the sun or improve acoustics, reduce glare or create more privacy. We always keep the...

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Remarkably wide width for a darkening fabric Ancho extraordinario para un tejido oscurecedor Thin and lightweight, it seamlessly fits into small blind cassettes Fino y ligero, se adapta a la perfección a cajones de estores compactos Both sides of the fabric feature identical colours Ambas caras del tejido presentan el mismo color Flawless flatness, even in larger dimensions Caída recta perfecta, incluso en aplicaciones de gran envergadura PVC-free coated polyester fabric Tejido de poliéster revestido sin PVC ©Fundacion Botin - Centro Botin - Arquitecto Renzo Piano - Santander 2017 - Resstende...

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TECHNICAL DATA CARACTERÍSTICAS TÉCNICAS KARELLIS GENERAL FABRIC PROPERTIES PROPIEDADES GENERALES DEL TEJIDO 65 % Polyester - 35 % Polyurethane (1) 65 % Poliéster - 35 % Poliuretano (1) Weighted composition Composición Width Ancho Roll length (nominal) Longitud del rollo Surface mass (weight) Masa superficial (peso) Thickness Espesor Colour fastness to artificial light (scale of 8) Solidez del color a la luz artificial (escala de 8) ≥ 6 (white not graded) ≥ 6 (blanco no incluido) MECHANICAL PROPERTIES PROPIEDADES MECÁNICAS Breaking strength - Warp Resistencia a la rotura - Urdimbre Breaking strength...

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THERMAL AND VISUAL PROPERTIES PROPIEDADES TÉRMICAS Y VISUALES EN 14501:2021 - ISO 52022-3:2017 SOLAR HEAT AND LIGHT CONTROL PROPERTIES PROPIEDADES DE CALOR SOLAR Y CONTROL DE LA LUZ Colour (name & code) Color (nombre y código) Glare control class Clase de control del deslumbramiento SOLAR FACTORS (FABRIC + GLAZING) FACTORES SOLARES (TEJIDO + ACRISTALAMIENTO) Opacity Class Clase de opacidad Efficiency class Clase de eficiencia Efficiency class Clase de eficiencia Samples tested according to EN 410:1998 "Glass in building - Determination of luminous and solar characteristics of glazing” and to...

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THERMAL FACTORS ÍNDICES TÉRMICOS BASIC PRINCIPLES PRINCIPIOS BÁSICOS Solar radiation is always partially transmitted through, absorbed or reflected by the fabric. The sum of all 3 equals 100. Ts + Rs + As = 100 % of solar energy. Toda radiación solar es en parte transmitida a través del tejido, absorbida o reflejada por el tejido. La suma de las 3 es igual a 100. Ts + Rs + As = 100 % de la energía solar. Thermal and optical values, as defined in the European standard EN 14501:2021 (Blinds and Shutters, Thermal and Visual Comfort, Performance Characteristics and Classification), are used to measure...

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ADVICE AND CARE INSTRUCTIONS HANDLING RECOMMENDATIONS To facilitate the handling of large widths of fabric and to avoid marks on the fabric, Mermet recommends that the panel(s) be rolled on a tube at each stage of the assembly process. Para facilitar la manipulación de tejidos de gran anchura, así como para evitar marcas, Mermet recomienda enrollar los paneles en un tubo en cada etapa de la confección. En el caso de los tejidos con un revestimiento acrílico blanco en el envés, se recomienda manipularlos en una superficie de trabajo limpia, sin polvo y seca. For fabrics with a white acrylic coating...

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