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Deep Teak PVDF Marble Aluminum Composite Panel | Crownbond.com

Deep Teak PVDF Marble Aluminum Composite Panel

Basic Material

  • 1) Protective film with CROWNBOND/OEM brand or as your requested
  • 2) Front side: aluminum roll coated with PVDF
  • 3) Macromolecular lamination film
  • 4) Core: Non-toxic polyethylene
  • 5) Macromolecular lamination film
  • 6) Rear Side: Aluminum coated with primer or as requested

 

Raw Material

Base material: High strength aluminum alloy sheet

PE core material: Non-toxic low density polyethylene

Surface coating: PVDF Lynar500 coating

Back coating: Primer coating

 

Technical Data

Paint thickness: 25-28 micron

Paint type: Kynar 500 PVDF coating

Warranty: 15-20 years

Fire resistance: B-s1-d0 according to EN13501

Joining Method

(1) Ivet and bolt/nut
We often use rivets, bolts/nuts and tapping screws for joining between CROWNBOND and other material like aluminum extrusions. For rivets, use aluminum blind rivets. We can do riveting work from one direction as shown in Fig-3-20.For screws, use bolts/nuts and tapping screws made of aluminum or stainless steel.
Strength of joining hole
A joining hole of 4mm indiameter withstands approx. 500-800 N (50-80kgf) per point depending on CROWNBOND thickness. The strength of the joining point depends on the position of the hole. The joining hole located near the panel edge will easily tear and will not show a sufficient strength.
According to our test, the distance from the panel edge to the hole center (e) should be larger than twice the hole-diameter(D) for sufficient strength, which is expressed with the equation
2D. in actual assembly work, we have to choose the position of the joining holes based on this idea. Refer to "Appendix6: Strength of joining hole" in section 4 for details.
In the installation of interior, countersunk rivets and screws will be used more often than round-headed ones. The strength may lessen with countersunk rivets and screws.
Prevention from galvanic corrosion
If CROWNBOND contacts a dissimilar metal in a humid atmosphere, the galvanic (electrolytic) corrosion may accelerate the corrosion of aluminum skin. To prevent this, the contact surface of the dissimilar metal like steel should have a paint coating thicker than 25 microns, galvanized coating or electric insulation before fixing CROWNBOND panel onto the metal surface.

(2) Modified non-penetrating rivet
A non-penetrating rivet is applicable for joining if the surface finish is low-gloss (30% gloss or less). Non-penetrating rivets are an alternative method to double-sided tapes and adhesives, but this rivet functions like a mechanical fixing.ensuring the design strength of approx.300N/piece.therefore, this rivet is suitable for areas where a reliable fixing is indispensable even in the event of fire or other accidents.
It is important that this non-penetrating rivet is usable only on low-gloss finishes as shown in table3-3,because the fastened trace is visible from the front side in medium and high-gloss finishes, refer to "Appendix7:Modified non-penetrating rivet" in Section4 for details.

(3) Adhesives
We can use a wide variety of commercial adhesives for joining and assembling CROWNBOND. However, some types of adhesives may corrode aluminum and do not suit CROWNBOND. For example, vinyl acetate type, widely used for timber and styrene foam, corrodes aluminum. The main adhesives suitable to adhesion between CROWNBOND and other materials areas follows.

Suitable No: Not suitable

Apart from the above adhesives, we have successfully used following adhesives for fabrication
Notes on adhesives.
A. Prior to adhesion work, remove all the foreign matter such as dust, particles, grease, water, etc. from the area to be adhered.
B. select the most appropriate adhesive than ensures the necessary adhesion power in the atmospheric conditions. The adhesion power depends on the surface conditions of the substrate.
Follow the adhesive manufacturer' s instructions.
C. When CROWNBOND is adhered to a dissimilar material, it is possible that CROWNBOND will show a deflection due to the thermal expansion difference or dimension change of the material. Pre-test the adhesive before fabrication and installation.
D. Some adhesives may cause a distortion after hardening, as shown in the diagram. Some epoxy
Adhesives, polyurethane adhesives and silicone adhesives may show this kind of distortion. This distortion is usually very slight, and its visibility depends on the gloss level of the finish, the visual angle and the circumstances.

(1) Welding of Core
One end of CROWNBOND an be adhered to another end of CROWNBOND by welding the core with hot melt adhesive(glue)-prior to heating a glue stick, we have to preheat the core surfaces for good adhesion. Normally, mechanical reinforcement is necessary after welding.

(2) Double-Sided Tape
Double-sided tape like 3M' s VHB tape is widely used in assembling Work of CROWNBOND. Generally, VHB tape simplifies the joining work. The thicker ones even allow movement of the adhered two materials to some extent. The adhesion test shows that 3M' s VHB Y-4920(0.4mm thick) is compatible with both topside and Backside of Lumiflon-based fluorocarbon coated CROWNBOND.

(3) Hook/loop Fastener
Hook/loop fastener like velcro tape is useful for guide signs and displays. This tape of removable and restorable.

(4) Sealing Material
In order to ensure waterproofing of joints between panels, normally a sealing material is used. The sealing material shall meet the performance required for the atmospheric conditions.
Table3-6 below shows general performance of sealing materials. Silicone, modified silicone and polysulfide sealant are often used for outdoor installation. The compatibility tests with these sealing materials have shown a good adhesion with Lumiflon-based fluorocarbon coated CROWNBOND, but some of the sealing materials need primer for good adhesion. In addition, some are 2-component type that consists of a base component and a curing agent. Regarding the joint design such as proper joint width and thickness, please follow the sealant manufacturer' s specifications.
Note: gloss increase due to plasticizer of modified silicone and polyurethane sealant in tooling work of modified silicone and polyurethane sealant, do not smear the protection film Of CROWNBOND with surplus sealant. The plasticizer, an additive in these sealing materials, permeates the protective film and causes a gloss increase on the Lumiflon-based fluorocarbon Coating.

Surface Processing (If Required)

(1) Screen-printing
In screen-printing.1-componentvinyltypeor2-component polyurethane type inks are suitable for all the finishes of CROWNBOND.
We obtain normal adhesion with this inks after dryingat80c for 30min and curing at room temperaturefor24hrs. The typical printing procedures are as follows:
A. Remove all dust and dirt with a soft cloth. Oily dirt, if remaining, causes printing defects.
B. Cure or dry under proper conditions. Follow instructions from the ink manufacturer.
Notes on screen-printing:
A. Keep the curing temperature below 90C for less than 30min.
If the curing temperature is higher, deflection of the panel may occur.
B. Select the ink suitable for the atmospheric conditions where the panel is to be located.

(2) Cutting Film
Various types of cutting films are applicable to the CROWNBOND surface. If you are going to fold the CROWNBOND panel after u apply the film, the film may change color at the folded corner. Confirm with pre-testing.

(3) Digital print with inkjet printer
Various types of decorative films and wallpapers printed with ink jet printers can be applied on CROWNBOND. Confirm the fire approval conditions of the film. Direct digital printing is also possible with special ink jet printers.

Overall Fabrication Works

(1) Typical Fabrication Process
Actual fabrication work of an CROWNBOND panel is an integrated work consisting of various machining procedures assembling and inspection. Fig3-27 is typical fabrication process for a standard tray type (rout and return) CROWNBOND panel

(2) Fabrication Drawing
We have to prepare fabrication drawings prior to every fabrication work. Fabrication drawings specify details of processing and assembly method of each CROWNBOND panel. Normally, we specify the following items in fabrication drawings.
A. Raw CROWNBOND panel (thickness, color, dimension) to be used for the fabrication
B. I Panel name shape, dimensions and quantity of the completed panel
C. Cutting, grooving and other processing details including its coating direction.
In addition to the above items, we can get unspecified information about subsidiary
materials from fabrication drawings through simple calculations. Thus, we can use fabrication drawings not only for processing and assembly of CROWNBOND panel but also for preparation of subsidiary materials, final inspection work of completed panels and some office work including inventory control of raw CROWNBOND panels.
Fig. 3-28 above shows an example of a fabrication drawing and the actual panels based on the drawing. Fabrication drawings are normally prepared for internal use, and so many other forms are successfully used. However, every form should facilitate the drawing work and should be easily understood without confusion.

(3) Adjustment of Dimentions
CROWNBOND panels elongate though folding and bending. Generally, we find the following elongations:
In folding after grooving: 0.5-1.0mm per point
In 3-roll bending: 0.3-0.4% of arc length (300-700mmR)
In order to compensate the elongation, we have to adjust (shorten) the cutting and grooving position based on the fabrication drawing. Thus, the actual cutting and grooving dimensions are smaller than those of the complete panel. As the elongation values depend on the grooving shape and bending method, we have to determine the exact values by pre-testing.

(4) Panel details
When we work with fabrication drawings, we have to determine the fabrication details of CROWNBOND panels. Normally, the details applicable to CROWNBOND are slightly different from solid aluminum panels, mainly because CROWNBOND panels are pre-coated products, while solid aluminum panels are post-coated products. Some panel details may need approval from customers with the fabricated samples showing the details. We will look over some of the main details below.
Corner Detail
Ina tray type (rout and return) panel, we can select a corner detail from two alternatives: 90degSquare and 45 deg diagonal After cutting. Grooving and notching 4-corners in the respective manner below. Fold the perimeter and fix the four corners with aluminum angle pieces and aluminum rivet.
In outside angle panels, we need additional notches at the top and bottom of the outside angle line. After assembling the grooved panel in the same manner as a regular tray panel, we finally fold the outside angle line. Check the folding angle and reinforce the outside angle with support
Plates made of aluminum on the top and bottom of the outside angle line.
Curving panel
There are several alternative methods for designing curved panels, depending on the curve radius. However, the slit method below is versatile and applicable to a wide range of curving radii from 300 to 3000 mmR. In this method, prior to bending, we make 3mm-wide slits on the top and bottom at a certain interval. The suitable interval depends on the curving radius and it is 30-85mm (in300- 3000mmR). Use an equation to calculate the suitable interval of slits. If the curing radius is larger than 3000mmR, bend the panel without slits with a regular 3-roll bender.
Special panel details
Sometimes encounter unusual designs including 3-dimensional shapes. Mostly. The
Required quantity is only several pieces, but wish to try to fabricate the CROWNBOND panels in such a manner that they achieve long-lasting performance with satisfactory appearance. Several examples are attached in* Appendix 8: examples of complicated panels" in Section 4 for your reference. If you have similar difficulties in an actual project, please contact local distributors or our office. We should like to study together.

Examples of Fixing Method (If Required)

As for the installation of Aluminum composite material (ACM), many advanced methods have been proposed and improved on for years. We will introduce some of the most common methods suitable for CROWNBOND below.
Contents of Drawing:

(1) External wall cladding-wet sealant joint
This installation system, with tray type (rout and return) panels and sealing joints, is one of he most common methods and it is available for a wide range of new buildings and renovation projects. After fixing CROWNBOND panels on the substructure, we apply a suitable sealing material to the joints in order to ensure water-tightness.
Data embodied herein is intended only for estimate by technically skilled persons, with any use thereof to be at their own discretion and risk. Mitsubishi chemical shall have no Responsibility or Infringement of any patent or other Proprietary right.

(2) External wall cladding-hanging method (If Required)
The hanging system is also one of the most common fixing methods. It simplifies the installation work at the construction site and hence we can shorten the installation period. It is easy to loosen the movement due to thernal expansion/contraction with this method, because panels are not tightly fastened to the sub-frame but are simply suspended.
Data embodied herein is intended only for estimate by technically skilled persons, with any use thereof to be at their own discretion and risk.
Mitsubishi chemical shall have no Responsibility or liability for results from such Use or infringement of any patent or other Proprietary right.

(3) External wall cladding-dry gasket joint (If Required)
In the method, we use gaskets in the joints instead of sealants, the durability of EPDM
Gaskets is Comparable to that of the sealant in addition, the gasket joint reduces the amount of dirt or stain on CROWNBOND Surface.
Data embodied herein is intended only for estimate by technically skilled persons, with any use thereof to be at their own discretion and risk.
Mitsubishi chemical shall have no Responsibility or liability for results from such Use or infringement any patent or other Proprietary right.

(4) External wall cladding-narrow open joint (If Required)
Generally, this kind of method is suitable for stone and timber-patterned CROWNBOND panels in which narrow joints between the panels are aesthetically effective. According to need, we apply a sealing material or EPDM gasket to the joints.
Data embodied herein is intended only for estimate by technically skilled persons, with any use thereof to be at their own discretion and risk.
Mitsubishi chemical shall have no Responsibility or liability for results from such Use or infringement of any patent or other Proprietary right.

(5) Roof Covering
CROWNBOND has been used for roof covering in prestigious projects such as airports and stadiums. In roof applications, we install a water gutter or waterproof sheets
Behind CROWNBOND panels so that leaked water can drain outside.
Date embodied herein is intended only for estimate by technically skilled persons with any use thereof to be at their own discretion and risk. Mitsubishi chemical shall have no Responsibility or liability for results from such Use or infringement of any patent or other Proprietary right.

(6) Back Panel of Glass Curtain Wall (if Required)
Glass curtain walls sometimes need an opaque spandrel panel (back panel)behind glass for aesthetic and energy-saving purpose. The spandrel back panels behind the glass must be very durable especially to UV exposure, because it is hard to replace them after the building is completed. CROWNBOND is the perfect material for such applications.
Data embodied herein is intended only for estimate by technically skilled persons, with any use thereof to be at their own discretion and risk. Mitsubishi chemical shall have no Responsibility or liability for results from such Use or infringement of any patent or other Proprietary right.

(7) Sunshade or cornice(If Required)
CROWNBOND is sometimes used for sunshade or the cornice of a building wall. In the type of application, normally steel or aluminum frames are used as reinforcement behind CROWNBOND.
Data embodied herein is intended only for estimate by technically skilled persons, with any use thereof to be at their own discretion and risk. Mitsubishi chemical shall have no Responsibility or liability for results from such Use or any infringement patent or other Proprietary right

(8) Ceiling panel with non-penetrating rivet
When we use CROWNBOND for indoor ceilings or soffits, non-penetrating rivets simplify the panel details. Non-penetrating rivets are usable only on low-gloss finishes (30% or less). If we use these rivets on medium to high gloss products, the trail of the concealed rivet is visible from front. The design strength of the non-penetrating rivet is approx.300N/piece not including the safety factor.
Refer to "appendix7: modified non-penetrating rivet" in Section 4. In the method, we install fabricated CROWNBOND panels on lightweight suspension bar ceiling systems.
Data embodied herein is intended only for estimate by technically skilled persons, with any use thereof to be at their own discretion and risk. Mitsubishi chemical shall have no Responsibility or liability for results from such Use or infringement of any patent or other Proprietary right.

(9) Parapet and soffit, renovation (If Required)
CROWNBOND is widely used for parapets and soffits in building renovation. CROWNBOND is used for the water drip parapet and soffit in the following details
1. CROWNBOND/fr 4mm, water drip
2. Aluminum sub-structure
3. CROWNBOND/fr 4mm parapet
4. Existing external wall
5. Level-adjustment and anchor
6. Suspension bolt
7. Aluminum support plate
8. Aluminum l-shaped support plate
9. CROWNBOND/fr 4mm, water drip
10. CROWNBOND/fr 4mm, eaves soffit
Data embodied herein is intended only for estimate by technically skilled persons with any use thereof to be at their own discretion and risk. Mitsubishi chemical shall have no Responsibility or liability for results from such Use or infringement of any patent or other Proprietary right.

(10) Corporate shop front signboard (f Required)
This corporate signboard is a shop front sign of a countrywide newspaper company. The signboard has signs by 3M s scotchcal film. The aluminum flanges are coated with the same color as CROWNBOND
1. CROWNBOND4mm having signs (logotype, letterings)
By scotchcal filr
2. Aluminum flange coated with the same color of CROWNBOND
3. Water drip
4. Drain hole
5. Steel sub-structure. l-30x30 coated
6. Anchor
7. Stiffener, aluminum square pipe, 30 30x2
8. Corner support plate, aluminum l-40x40
9. Aluminum channel (Top & bottom only)
10. VHB tape

(11) Roof of pedestrian passage (If Required)
CROWNBOND has been used as roof panels of public pathways and bus stations. Refer to an application photograph in P. 11. CROWNBOND panels are just clamped between sub-frames. And aluminum extrusions. In most projects, the curving panels can be naturally curved without a mechanical bending.

aluminum-composite-panel-installation-sample_1aluminum-composite-panel_1

Technical Parameters

Width (mm)

Standard 1220mm&1250mm, options 900mm, 1500mm, 2000mm, or any other width 

Length (mm)

Standard 2440mm,options: 3050mm, 5000mm, 5800mm, or any other  length that can be put into a 20gp container

Panel  thickness (mm)

Standard thickness: 3mm&4mm,options: 1mm, 2mm, 5mm,  6mm,7mm, 8mm,etc

Aluminium thickness (mm)

0.5mm, 0.45mm, 0.4mm, 0.35mm, 0.3mm, 0.25mm, 0.21mm, 0.18mm,etc

Coating

PE, HDPE, PVDF, FEVE, Epoxy coating, etc.

Color

Solid, metallic, high gloss, pearl, spectra mirror, stone look, wood look, brushed, etc.

Weight

5-6.5kg/Square meters, based on 4mm thickness,  3-4.5kg/Square meters, based on 3mm thickness

Function

Firefroof, Mould Proof, self-cleaning, Anti-Static, Antibacterial, etc.

Certification

SGS / CE / CTC / ISO 9001:2008 / ISO 14001:2004 / GB/T 1774-1999, etc.

 

 Features:

1) Fireproof and water resistant, excellent heat and sound insulation

2) Excellent surface flatness and smoothness

3) Superior weather, corrosion and pollutant resistance

4) Even coating, various colors

5)Super peeling strength

6) Superior impact resistance

7) Lightweight and easy to process

8) Easy to maintain.

Advantage-of-Aluminum-composite-panel_2

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