Poliform Varenna Manual De Instrucciones página 24

44 AN OVERVIEW OF MATERIAL
VARENNA-POLIFORM KNOW-HOW
A GOOD UNDERSTANDING OF YOUR VARENNA-POLIFORM PRODUCT CAN HELP YOU TO APPRECIATE IT EVEN MORE.
VARENNA-POLIFORM PRODUCTS ARE MADE FROM THE FINEST COMPONENTS AND WITH THE HELP OF THE MOST
RECENT TECHNOLOGY, COUPLED WITH CAREFUL OBSERVANCE OF SAFETY STANDARDS.
SAFETY STANDARDS
VARENNA POLIFORM USES ONLY PARTICLEBOARD PANELS IN CLASS EPF-S E0,5 FOR THE STRUCTURE OF ITS
FURNITURE, THIS MEANS THAT THE CONTENTS OF FORMALDHYDE IS THE HALF OF WHAT REQUESTED BY THE
EUROPEAN REGULATIONS.
FOR THE OTHER ELEMENTS WE USE PARTICLEBOARD PANELS IN CLASS EPF-S E0,5 OR PARTICLEBOARD PANELS
IN CLASS E1, ANYHOW FULLY ALIGNED WITH THE LIMITS SET BY CONFORMING TO EU STANDARDS EN120 AND
EN-717-2 WITH RESPECT TO FORMALDEHYDE RELEASE. WITH RESPECT TO VARNISH, POLIFORM EXCLUSIVELY USE
POLYURETHANE COATINGS FREE OF HEAVY METALS AND VOLATILE ORGANIC COMPOUNDS (VOC) BELONGING TO THE
VARIOUS CLASSES WITHIN TABLE A1 OF THE ITALIAN MINISTERIAL DECREE OF 12 JULY 1990 AND/OR CLASSES I AND II
WITHIN TABLE D OF THE ITALIAN MINISTERIAL DECREE OF 12 JULY 1990.
MATERIALS USED FOR THE FRAME
HEARTWOOD
SUBCORTICAL TREE TRUNK SECTIONS NEAREST THE DARKER INNERMOST ANNUAL RINGS, ALSO KNOWN AS DURAMEN.
HEARTWOOD IS CONSIDERED TO BE HIGH-QUALITY, GENUINE NATURAL WOOD IN CONTRAST TO WOOD PANELS MADE
FROM WOOD PARTICLES OR MULTILAMINATES.
VENEERED PARTICLE BOARD PANEL
PANEL COMPOSED OF WOOD PARTICLES WITH A THIN LAYER OF SOLID WOOD, CALLED A PEELING, LESS THAN 7MM
THICK.
PARTICLE BOARD PANELS
WOOD-BASED PANELS MADE FROM WOOD PARTICLES (SHAVINGS, WOOD CHIPS, ETC.) THE WOOD PARTICLES ARE
HELD TOGETHER WITH HARDENING SYNTHETIC RESIN AND THEN HEAT PRESSURISED. PARTICLE BOARD PANELS USE
AN ASSORTMENT OF LESS COSTLY WOOD WHICH IS GENERALLY THE BY PRODUCT OF OTHER PROCESSES: THIS IS
WHY THIS TYPE OF PRODUCT IS OF INTEREST FROM AN ECOLOGICAL STANDPOINT.
HOLLOW
CORE BOARD PANEL MADE BY GLUING TWO MULTILAMINATES (USUALLY 4 MM THICK) ON A FRAME OF SPRUCE
MOULDINGS OR OTHER COMMON WOOD. THE EXTERNAL SURFACES CAN BE VENEERED OR LACQUERED. INSIDE THE
INTERSPACE IN THE VERTICAL MOULDINGS, THE LARGE PANELS CONTAIN PLYWOOD TO STIFFEN THE SURFACE. THIS
METHOD OF CONSTRUCTION ALLOW PANELS TO BE CREATED THAT ADD STRENGTH TOGETHER WITH LIGHTNESS,
PROVING TO BE IDEAL, FOR EXAMPLE, FOR THE SHELVES.
CHIPBOARD PANEL
A PANEL COMPOSED OF WOOD PARTICLES AND COVERED WITH A CELLULOSE BASE MATERIAL (PAPER), SHEETS OF
POLYMER (PVC VENEER, ABS, ETC.) OR MELAMINE RESINS.
MELAMINE
A HARDENING SYNTHETIC RESIN OBTAINED FROM POLYCONDENSATION OF FORMALDEHYDE. IT IS A COLORLESS,
ODORLESS RESIN THAT IS RESISTANT TO WATER, CHEMICALS, ABRASION AND HEAT AND WHICH HAS PARTICULAR
TRANSPARENCY UNDER LIGHT.
MATERIALS USED FOR THE FRAME
ABS
(ACRYLONITRILE BUTADIENE STYRENE) A SYNTHETIC THERMOSETTING PLASTIC RESIN WITH GOOD RESISTANCE TO
ACIDS. IT REPELS DUST AND CANNOT WARP. FOR THESE REASONS, ABS IS USED IN THE MANUFACTURE OF EDGES AND
SHEETS FOR SURFACE COATING.
GLOSSY/EMBOSSED LACQUERED
PANELS OF POLYESTERIZED CHIPBOARD ON THE BACK AND THEN LACQUERED ON BOTH SIDES WITH POLYURETHANE
POLYMER-BASED PAINT HAVING A HIGH MOLECULAR WEIGHT. THE PANELS HAVE THE CHARACTERISTICS OF BEING
DIMENSIONALLY STABLE AND WATER RESISTANT.
GLASS
COMMON GLASS IS COMPOSED ALMOST EXCLUSIVELY OF SILICA, THE SAME SUBSTANCE AS QUARTZ. IN ITS
PUREST STATE, GLASS IS TRANSPARENT, RELATIVELY HARD, ALMOST INERT FROM A CHEMICAL AND BIOLOGICAL
STANDPOINT AND PRESENTS A VERY SMOOTH SURFACE. GLASS IS AVAILABLE IN A WIDE RANGE OF FINISHES AND
COLORS FOR INTERIOR DECORATION. IT IS POSSIBLE TO CIRCUMVENT ITS INTRINSIC FRAGILITY BY USING CHEMICAL
TREATMENTS (ADDING OTHER MINERALS TO THE COMPOUND) OR PHYSICAL PROCESSES, SUCH AS TEMPERING.
TEMPERED GLASS
GLASS SUBMITTED TO THE TEMPERING PROCESS WHICH CONSISTS IN THE BRUSQUE COOL DOWN DURING THE
MANUFACTURING. THE SLAB OBTAINED HAS HUGE INTERNAL TENSIONS AND IS CHARACTERIZED BY HARDNESS AND
HIGH FRAGILITY. IN CASE OF BREAKDOWN THE TEMPERED GLASS SPLITS UP IN NON CUTTING PLINTERS.
ALUMINUM
A SILVERY, HIGHLY DUCTILE METAL. ITS CHIEF PROPERTIES ARE RESISTANCE TO CORROSION, TENSILE STRENGTH
AND ITS LIGHT WEIGHT. THESE PROPERTIES ARE IDEAL FOR MANUFACTURING DURABLE YET LIGHTWEIGHT FRAME
COMPONENTS. RAW ALUMINUM CAN BE WORKED USING SEVERAL DIFFERENT PROCESSING TECHNIQUES SUCH AS
FUSION, FORGING OR PRESSING.
MARBLE
MARBLE IS A METAMORPHIC ROCK COMPOSED MOSTLY OF CALCIUM CARBONATE (CACO3). MARBLE RESULTS FROM
THE METAMORPHISM OF SEDIMENTARY ROCK, A PROCESS THAT CAUSES COMPLETE RECRYSTALIZATION OF CALCIUM
CARBONATE. MARBLE'S COLOR DEPENDS ON THE PRESENCE OF MINERAL IMPURITIES (CLAY, SILT, SAND, IRON OXIDES,
FLINT NODULES) PRESENT IN GRAINS OR LAYERS INSIDE THE ORIGINAL SEDIMENTARY ROCK. WHITE MARBLE IS THE
RESULT OF THE METAMORPHISM OF CALCITE ROCK CONTAINING NO IMPURITIES.
QUARTZITE (QUARTZ AGGLOMERATE)
QUARTZ AGGLOMERATE IS A MATERIAL THAT IS PRODUCED IN THE FORM OF SLABS MEASURING 304X140 CM USING
BRETONSTONE®SYSTEM TECHNOLOGY AND A SPECIAL VACUUM VIBRO-COMPRESSION PROCESS. THE SLABS ARE
ACHIEVED BY MIXING SILICEOUS SAND OR PURE QUARTZ (95%) WITH A POLYESTER STRUCTURAL RESIN (5%) AND
COLOURED PIGMENTS STABLISED USING UV RAYS.
AISI 304 STAINLESS STEEL
AISI 304 (REFERENCE NAME USED ACROSS THE WORLD). THIS IS AN AUSTENIC STAINLESS STEEL CONTAINING BETWEEN
18% AND 20 % CHROMIUM AND BETWEEN 8% AND 10 % NICKEL, A COMPOSITION WHICH GIVES THE MATERIAL
IMPROVED RESISTANCE TO CORROSION AND SUPERIOR WORKABILITY.
AN OVERVIEW OF MATERIAL 45