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The brand Merino Laminates hit the market in 1981, later the Merino Group extended its activity to the manufacture of laminates, having entered the segment of the interior with plywood in 1974.
About Merino Group: Founded in 1968, the Merino Group today has done business for US $ 165 million in various business areas including rolled products, Biotechnology (Agriculture and Food Processing) and Information Technology (IT ). We strive constantly to maintain excellence and ethics in all our businesses.
We export to 60 countries around the world, employing 3,000 people through three production centers, 19 offices in India and one office in the USA.
Contact us at:
Info@merinolatin.com

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External Wall Cladding (EWC)

PRODUCTS RANGE
DETAILED DESCRIPTION
INFO

Product Introduction
Merino External Wall Cladding (EWC) is a Solid Exterior grade Compact High Pressure Laminate as per EN 438-6 Type EDS and EGS manufactured using specially treated Acrylic Resin under high pressure and temperature & hardened with Electron Beam Curing Thus providing Weather Resistance and UV Resistance.

Application:

  • Residence (kothi)
  • Shopping Mall
  • Hotels
  • Residence (High Rise Apartment)
  • Industry
  • Office Buildings
  • Retail shops
  • Airport terminal


Why Chose Merino External Wall Cladding
Long Lasting
: Because of added Electron Beam Curing in EWC+ , it has higher resistance to polluting chemicals in air and higher abrasion resistance hence it leads to better  performance in adverse weather conditions thereby giving 20 % extra life.

Easy to

  • Install: Less time and effort is required for Installation.
  • Maintain: Can be cleaned using a damp cloth or sponge and a mild soap or detergent.
  • Replace: Reproduction of Same color of Merino External Wall Cladding is Possible; so replacement with matching colour is possible.For Renovation, can be installed on existing wall surface.

Highly Decorative

  • Multitude of designs -wood grains/patterns
  • Different sizes of panel are available enabling project optimization.
SPECIFICATION

FABRICATION

Storage and Handling:
Merino EWC External Wall Cladding Panels is heavy material. During transport, use pallets to support the complete sheet area. Pallets should be strong and stable enough to support their load without bending or buckling.

The surface of each board must be free from debris, grit or foreign bodies which can damage the decorative surface. When loading and unloading, do not push or drag Panels over one another; lift cleanly by hand or suction device. Make stacked Panels secure against slipping.

Also, Merino EWC External Wall Cladding Panels undergo a certain amount of dimensional movement when subjected to humidity, hence to minimise the risk of bowing, take care of the following

Always cut the panels with the long edge parallel to the length of the panel. Dimensional Movement across the width of the panel is twice as great as it is along the length, so cutting panels with the long dimension running across the width of the panel greatly increase the risk of bowing.

As far as possible, the ambient conditions should be the same on each side of the panel, as it is important that both sides gain or lose moisture at roughly the same rate. Where panels are mounted on a wall, provide adequate ventilation to ensure that temperature and humidity conditions at the back of the panels are essentially the same as those in the front.

Make fixing centres sufficiently close to prevent movement:
Store Merino EWC External Wall Cladding Panels enclosed in warehouse where normal interior conditions (18°C – 25°C and 50% – 60% relative humidity) are maintained. Merino EWC External Wall Cladding Panels will remain flat if stored horizontally in packs on a flat base board. The base board must be dry, and should ideally be covered with a material impervious to water, to act as a moisture barrier. Cover the top sheet of each stack with a moisture barrier/cover board, with sufficient weight to remain flat in contact with the whole surface area of the Merino EWC External Wall Cladding Panels. Maintain procedure throughout the storage (whether in a warehouse or on the fabrication shop floor) and reinstate it whenever a sheet is removed from the stack. Failing to store Merino External Wall Cladding Panels flat for any length of time causes deformation which is almost impossible to rectify, particularly with thicker boards. If protective films are provided these should be removed from both sides of the board simultaneously.

Profile cutting and Edge Finishing:
It is not necessary to apply edging strips or edge sealants to Merino EWC External Wall Cladding Panels. For many applications clean sawn edges are sufficient.

To achieve a superior finish or a profiled edge, use a spindle moulder or router. For this type of work PCD tooling is recommended. It is not possible completely to avoid cutter marks, but they can be minimised by feeding the work at a constant controlled speed with a mechanical power feed. Take care to avoid pausing during cutting and profiling, which may result in burn marks that are difficult to remove. To obtain clean edges free of cutters marks, carry out a further sanding and scraping operation. Buffing with steel wool and applying silicone free oil enhance edges. Chamfering or profiling the edges of Merino External Wall Cladding panels reduce the risk of edge impact damage.

Drilling:
The most suitable drills for use on Merino EWC External Wall Cladding Panels are those designed for plastic sheets. These drills have a point angle of 60° – 80° instead of the normal 120° for drilling metal.

To avoid break-out on the reverse side, gradually reduce the feed speed of the drilling head and the pressure applied when approaching the point of breakthrough. Working on a firm underlay, reduces the risk of break-out.

For blind boring into the face, the depth of the hole should be such that at least 1.5 mm of material remains between the bottom of the hole and the other side of the sheet. TCT lip and spur drills produce clean flat-bottomed blind holes, with low risk of point penetration on the reverse side. This allows maximum depth of material to be used for fixings. When drilling parallel to the surface (edge drilling) at least 3 mm of material must on either side of the hole. Threaded holes can be produced using engineer’s screw cutting taps. Self – tapping screws or threaded brass inserts may also be used.

Sawing:
Saw blades used for cutting double-sided composites are generally suitable for cutting Merino External Wall Cladding panels. Saws of less than 2 mm thickness are not recommended.

Break-out on the underside of Merino EWC External Wall Cladding panels can be reduced by various methods:

Using a pre-scoring blade on the underside
Using a base-board of plywood or hardboard beneath the sheet
Altering the exit angle of the saw blade by adjusting the height setting
When sawing a Merino EWC External Wall Cladding panels with two decorative faces, the feed speed essentially governs the quality of the saw cut. A speed of 0.03 mm -0.05 mm per saw tooth has been found to be the most successful.
Maintenance: As HPL do not suffer from corrosion and oxidation, no further surface protection and no maintenance apart from cleaning is required. Merino EWC External Wall Cladding may be cleaned with damp cloth or ordinary soap.
Care & Maintenance

Storage and Handling:
Merino EWC External Wall Cladding Panels is heavy material. During transport, use pallets to support the complete sheet area. Pallets should be strong and stable enough to support their load without bending or buckling.

The surface of each board must be free from debris, grit or foreign bodies which can damage the decorative surface. When loading and unloading, do not push or drag Panels over one another; lift cleanly by hand or suction device. Make stacked Panels secure against slipping.

Also, Merino EWC External Wall Cladding Panels undergo a certain amount of dimensional movement when subjected to humidity, hence to minimise the risk of bowing, take care of the following

Always cut the panels with the long edge parallel to the length of the panel. Dimensional Movement across the width of the panel is twice as great as it is along the length, so cutting panels with the long dimension running across the width of the panel greatly increase the risk of bowing.

As far as possible, the ambient conditions should be the same on each side of the panel, as it is important that both sides gain or lose moisture at roughly the same rate. Where panels are mounted on a wall, provide adequate ventilation to ensure that temperature and humidity conditions at the back of the panels are essentially the same as those in the front.

Make fixing centres sufficiently close to prevent movement:
Store Merino EWC External Wall Cladding Panels enclosed in warehouse where normal interior conditions (18°C – 25°C and 50% – 60% relative humidity) are maintained. Merino EWC External Wall Cladding Panels will remain flat if stored horizontally in packs on a flat base board. The base board must be dry, and should ideally be covered with a material impervious to water, to act as a moisture barrier. Cover the top sheet of each stack with a moisture barrier/cover board, with sufficient weight to remain flat in contact with the whole surface area of the Merino EWC External Wall Cladding Panels. Maintain procedure throughout the storage (whether in a warehouse or on the fabrication shop floor) and reinstate it whenever a sheet is removed from the stack. Failing to store Merino External Wall Cladding Panels flat for any length of time causes deformation which is almost impossible to rectify, particularly with thicker boards. If protective films are provided these should be removed from both sides of the board simultaneously.

Profile cutting and Edge Finishing:
It is not necessary to apply edging strips or edge sealants to Merino EWC External Wall Cladding Panels. For many applications clean sawn edges are sufficient.

To achieve a superior finish or a profiled edge, use a spindle moulder or router. For this type of work PCD tooling is recommended. It is not possible completely to avoid cutter marks, but they can be minimised by feeding the work at a constant controlled speed with a mechanical power feed. Take care to avoid pausing during cutting and profiling, which may result in burn marks that are difficult to remove. To obtain clean edges free of cutters marks, carry out a further sanding and scraping operation. Buffing with steel wool and applying silicone free oil enhance edges. Chamfering or profiling the edges of Merino External Wall Cladding panels reduce the risk of edge impact damage.

Drilling:
The most suitable drills for use on Merino EWC External Wall Cladding Panels are those designed for plastic sheets. These drills have a point angle of 60° – 80° instead of the normal 120° for drilling metal.

To avoid break-out on the reverse side, gradually reduce the feed speed of the drilling head and the pressure applied when approaching the point of breakthrough. Working on a firm underlay, reduces the risk of break-out.

For blind boring into the face, the depth of the hole should be such that at least 1.5 mm of material remains between the bottom of the hole and the other side of the sheet. TCT lip and spur drills produce clean flat-bottomed blind holes, with low risk of point penetration on the reverse side. This allows maximum depth of material to be used for fixings. When drilling parallel to the surface (edge drilling) at least 3 mm of material must on either side of the hole. Threaded holes can be produced using engineer’s screw cutting taps. Self – tapping screws or threaded brass inserts may also be used.

Sawing:
Saw blades used for cutting double-sided composites are generally suitable for cutting Merino External Wall Cladding panels. Saws of less than 2 mm thickness are not recommended.

Break-out on the underside of Merino EWC External Wall Cladding panels can be reduced by various methods:

Using a pre-scoring blade on the underside
Using a base-board of plywood or hardboard beneath the sheet
Altering the exit angle of the saw blade by adjusting the height setting
When sawing a Merino EWC External Wall Cladding panels with two decorative faces, the feed speed essentially governs the quality of the saw cut. A speed of 0.03 mm -0.05 mm per saw tooth has been found to be the most successful.
Maintenance: As HPL do not suffer from corrosion and oxidation, no further surface protection and no maintenance apart from cleaning is required. Merino EWC External Wall Cladding may be cleaned with damp cloth or ordinary soap.
Test Data
Physical Characteristics
PropertiesTest MethodAttributes/
Property
UnitStandard
value
Actual
value
ThicknessEN 438 2–56.0 < e < 8.0mmTol 0.4Tol ± 0.4
Length & WidthEN 438 2-6Panelmm+10–0+10–0
Edge StraightnessEN 438 2–7Panelmm< 1.5< 1.5
SquarenessEN 438 2– 8Panelmm/m< 1.5< 1.5
FlatnessEN 438 2–96.0 < e < 8.0mm< 5.0< 5.0
DensityISO 1183Massg/cm3< 1.35> 1.4
Wear ResistanceEN 438-2 10Abrasion ResistanceRevolution350 >400 Rev.
Impact ResistanceEN 438 2 21Dropped ballmm1800 mm1800 m
(Large Diameter Ball)e < 6 mmheight–no
crack
height–no
crack
10 mm Max.10 mm Max.
Dry Heat ResistanceEN 438-2 16Resistance to DryAppearanceMin. Level 4Level 5
Heat at 180°c
Resistance toEN 438-2 12T% Mass
Increase
Max. 2% in weight< W = 0.8%
Boiling WaterT < 5.0 mmMoisture Resistance% Thickness IncreaseMax. 2% in thickness< T = 0.8%
Min Level AppearanceLevel 4Level 5
Mechanical Properties
Modules of ElasticityISO 178StrengthMpa< 9000< 9000
Flexural StrengthISO 178StrengthMpa> 80< 90
Tensile StrengthEN ISO 527 – 2StrengthMpa< 60< 70
Weather Resistance
PropertiesTest MethodAttributes/
Property
UnitEWCEWC+
Standard
Value
Actual Merino
EWC Value
Standard
Value
Actual Merino
EWC+
Value
Light FastnessEN 438-2 27ContrastGrey ScaleMin. Level 4> Level 4Min. Level 4 >Level 4
Artificial WeatheringEN 438 – 2 29ContrastGrey ScaleMin Level 3> Level 3Min Level 3> Level 3
: 3000 hAppearanceGrey scaleMin. Level 4> Level 4Min. Level 4> Level 4
UV – LightEN 438 – 2 28ContrastGrey scaleNo requirementNo requirementMin Level 3> Level 3
Resistance: 1500 hAppearanceGrey scaleNo requirementNo requirementMin. Level 4> Level 4
DimensionalEN 438 2 – 17Accumulated%L: Max 0.3 %< 0,3 % (L)L: Max 0.3 %< 0,3 %
(L)
Stability at ElevateddimensionalW : Max 0.6 %< 0,6 % (W)W : Max 0.6 %< 0,6 %
(W)
temperatureChange
Resistance toEN 438 2 – 19AppearanceRatingMin. Level 4Min. Level 5Min. Level 4Min.
Level 5
Climate ShockFlexural StrengthIndexMin. 0.950.98Min. 0.950.98
Index Ds FlexuralIndexMin. 0.950.97Min. 0.950.97
Modulus Index Dm
Fire Characteristics
Reaction to FireEN 13501 – 1Fire RetardantClassificationB S2 d0
Limited Warranty

Limited Warranty: Merino guarantees that Merino EWC* and EWC+** panels will continue to posses the properties as per requirement of EN 438-part-6 for a period indicated below from the date of delivery of the product to the buyer. ØEWC – 10 Years ØEWC+ – 12 Years

Slight homogeneous variation in colour may take place in course of time
Guaranty will be valid when installation will be done according to Merino Installation Guide line only.
This will exclude if any damage been done by mishandling as a result of improper maintenance of the product

*Merino EWC is suitable for normal usage.

** Merino EWC+ is suitable for severe heavy exposure to sunlight and weathering conditions.