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RUKA

Product catalog summary

Introduction
Mermet, founded in 1951, specializes in sunscreen fabric production aimed at enhancing comfort by filtering sunlight, improving acoustics, reducing glare, and ensuring privacy, with a focus on sustainability.

Product Specifications
The RUKA fabric consists of 66% polyester and 34% polyurethane, measuring 260 cm in width and 30 lm in roll length. It has a surface mass of 344 g/m² and a thickness of 0.29 mm. The fabric is fire retardant, lead-free, PVC-free, and comes with a 5-year warranty. Available colors include Black, Grey, Pearl, Sand, Linen, and White.

Mechanical Properties
The fabric demonstrates high breaking strength in both warp (>120 daN/5 cm) and weft (>142 daN/5 cm) directions, with elongation at break under 28% for warp and 23% for weft. Tear strength is ≥13 daN for warp and ≥9 daN for weft.

Fire Certificates
The fabric meets Class 1 fire certification in the EU and Spain, is under certification in Italy, and complies with railway risk level R1 HL2 standards.

Processing and Maintenance
RUKA fabric can be cut using cold knife, crush cut, or ultrasonic methods and welded thermally with weldable tape. Cleaning involves dust removal and washing with soapy water.

Thermal and Visual Properties
According to EN 14501:2021 and ISO 52022-3:2017 standards, the fabric offers good thermal performance with low solar factor values, indicating effective energy management.

Optical and Thermal Factors
The fabric's solar transmittance, reflectance, and absorptance are measured to minimize energy penetration and maximize reflection.

Emissivity and Acoustic Properties
Low emissivity reduces energy transfer, enhancing indoor comfort. Acoustic properties are measured using ISO 354:2003 and ISO 10534-2:2023 standards, indicating sound absorption potential.

Handling Recommendations
To prevent fabric damage, roll panels on a tube during assembly. For metallised fabrics, use cotton gloves to avoid fingerprints.

Conclusion
Mermet's RUKA fabric is a versatile, high-performance sunscreen fabric suitable for various applications, offering durability, ease of maintenance, and enhanced comfort.

Guarantee and General Conditions
Mermet's solar protection fabrics come with a five-year guarantee under normal usage and maintenance conditions as outlined in the technical specifications and maintenance recommendations. For full terms, refer to the General Conditions of Sale.

Care Instructions
Handle fabrics with clean, dry hands, and gloves are recommended. Avoid scrubbing, solvents, or abrasive substances that could damage the fabric coating. When cleaning windows, ensure blinds are raised to prevent chemical exposure.

Handling Recommendations
Roll wide fabrics on a tube during each stage of production to prevent marks. For fabrics with a white acrylic coating, use a clean, dust-free, dry surface. For metallic-coated fabrics, gloves are necessary to avoid fingerprints.

Storage Conditions
Fabrics should remain in their original packaging during storage or transport. Store rolls horizontally in individual cardboard tubes in a stable temperature and humidity environment. Avoid prolonged exposure to temperatures above 45°C to prevent color fading. Use transportation aids and avoid lifting rolls by the ends to prevent creasing. Never fold fabrics, and avoid stacking rolls for long-term storage.

Maintenance
General maintenance rules include handling fabrics with care, using clean, dry hands, and gloves. Do not scrub or use solvents or abrasive substances. During window cleaning, ensure blinds are rolled up to avoid chemical exposure.

Additional Information
Visit Mermet's website for more details on their sunscreen fabrics designed for people, not buildings.

Catalog excerpts

RUKA 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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Thin and lightweight fabric Tejido delgado y ligero Metal-coated fabric side for enhanced protection from overheating Cara del tejido con revestimiento metálico para una protección mejorada frente al exceso de calor Cinco colores delicados Appropriate for automotive applications Apto para aplicaciones de automoción ©Hunter Douglas / Frame+View 5 5 year warranty Garantía de 5 años Reach compliant Reach compliant Printable Imprimible Pb Lead free Sin plomo Fire retardant Ignífugo

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TECHNICAL DATA CARACTERÍSTICAS TÉCNICAS RUKA GENERAL FABRIC PROPERTIES PROPIEDADES GENERALES DEL TEJIDO Weighted composition Composición 66 % Polyester - 34 % Polyurethane 66 % Poliéster - 34 % Poliuretano Width Ancho Roll length (nominal) Longitud del rollo Surface mass (weight) Masa superficial (peso) Thickness Espesor ≥ 4 (white not graded) ≥ 4 (blanco no incluido) Colour fastness to artificial light (scale of 8) Solidez del color a la luz artificial (escala de 8) Emissivity of the metallised side Emisividad de la cara metalizada MECHANICAL PROPERTIES PROPIEDADES MECÁNICAS 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) Side Cara SOLAR FACTORS (FABRIC + GLAZING) FACTORES SOLARES (TEJIDO + ACRISTALAMIENTO) Glare control class Opacity Class Clase de control del Clase de opacidad deslumbramiento 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”...

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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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