Specialty Film & sheet. Lexan * XHR6000. Opaque aircraft grade sheet. Technical Manual. sharing our futures

Transcription

1 Specialty Film & sheet Lexan * XHR6000 Opaque aircraft grade sheet Technical Manual sharing our futures

2 Index Introduction 3 Thermoforming Lexan* XHR Mold Design 7 Forming Troubleshooter 9 Fabrication 12 Compatible Adhesives 12 Compatible Paint Systems 14 Stain Resistance and Cleaning 15 2 SABIC Innovative Plastics

3 Introduction Lexan* XHR6000 is a new opaque aircraft grade sheet which offers robust OSU 65/65, smoke, flame, and toxicity compliance along with the advantages of lower weight, lower processing temperatures, improved ductility and improved colorability versus current OSU and FST compliant sheet grades. 1. Available standard color pallett of Lexan XHR6000 Full compliance to FST and OSU, eliminates the need for waivers and other time consuming product approvals. With a specific gravity of 1.34, Lexan XHR6000 can provide critical weight savings where every kg of weight taken from an airplane results in approximately $2000 in fuel savings per year. Lower processing temperatures compared to Ultem* or Polyphenylsulfone (PPSU) sheet means lower cost tooling, lower heating costs, faster cycle times, and lower part costs. In addition, Lexan XHR6000 provides increased design freedom because it forms similar to standard Lexan sheet products. It is capable of deep draws, crisp angles and thin walls. This product is an excellent choice for seating components, fuselage cladding, window shades, door shrouds, window surrounds, cockpit linings and trolleys. Table 1a: Features Comparison Product OSU Heat Release Compliant FST Toxicity Compliance Specific Gravity Texture Retention Colorability Lexan XHR /65 (55/55 capable) Compliant 1,3 Very Good Excellent Ultem 65/65 (55/55 capable) Compliant 1,3 Poor Excellent PPSU 65/65 Compliant 1,3 Good Good PVC/Acrylic 65/65 non-compliant 1,47 Excellent Table 1b: Processing comparison Product Sheet Forming Temperature Tool Forming Temperature Cooling Time Mold Shrink (depends on temp and type [male/female]) Lexan XHR F ( C) F ( C) 18 sec % Ultem F ( C) F ( C) 18 sec % PPSU F ( C) F ( C) 18 sec 0.8 to 1.0 % PVC/Acrylic F ( C) F (66-71 C) 240 sec % 1 SABIC Innovative Plastics 3

4 Thermoforming XHR60000 Thermoforming is an established process that offers the designer the freedom to develop complex shapes and forms with cost/performance characteristics that have significant advantages over more traditional methods of production. Low cost tooling, large part production, and reduced lead times all contribute to the advantages of producing sheet products in this way. Thermoforming requires heating the plastic sheet to its softening temperature and drawing the soft material over or into a mold using vacuum or air pressure. When the part has assumed the shape of the mold, it is allowed to cool, and is then removed from the mold. The use of heated positive air allows much higher pressures, making sharper detail possible. Lexan XHR6000 sheet is easily thermoformed with sharp detail on any conventional forming equipment capable of quickly transferring the sheet from the heating station to the mold or forming table. Rapid transfer is necessary because the sheet cools quickly and becomes form-stable at a higher temperature than other materials. Although double-oven automatic or semiautomatic forming equipment is recommended for Lexan sheet, single-sided heating canopy-type equipment can be used. Avoid using separate heating and forming devices, such as are often used to form acrylic. 2. Vacuum Forming (Male Mold) 3. Vacuum Forming (Female Mold) A B C Plastic Sheet Thick Areas Clamp Thin Areas Formed Part Mold Vacuum 2 A Plastic Sheet B C Formed Part Thick Areas Seal Mold Clamp Thin Corners Vacuum 3 4 SABIC Innovative Plastics

5 Drying Always dry Lexan XHR6000 sheet prior to vacuum forming. Small amounts of moisture absorbed in storage or shipment can cause moisture bubbles, loss of forming detail and visually unattractive surfaces. For drying, use a vented, air circulating oven at 250 F (121 C). Place the sheets vertically in the oven, or in racks that provide a minimum separation of 1 inch (2.5 cm) between sheets. When a sheet has been dried, it may be used for up to 12 hours without re-drying depending on environmental conditions. When using automatic equipment, cool the sheet to room temperature to maintain uniform cycles. Remove any protective masking before predrying. Drying Recommendations for Lexan XHR6000 General Rule of Thumb: 2 minutes per mil (25 micron) Example: inch (3 mm) requires 4 Hours of drying at 250 F (121 C) Clamping Frames Place the pre-dried sheet in machine clamping frames capable of exerting sufficient force to prevent the sheet from pulling out during forming. The frame should also provide some stripping action as the formed part is removed from the tool. The mass of the metal clamp frames can cause a substantial difference in sheet temperature between the relatively cool edges of the sheet and the heated center. Therefore, design clamping frames to allow maximum temperature build-up in the sheet under the clamp. Forming Temperature To preserve the fine texture on the Lexan XHR6000 sheet, keep the sheet surface temperature on the textured side below 390 F (200 C). Heated forming tool temperatures should be maintained between F ( C). Heating/Cooling Cycle When Lexan XHR6000 sheet reaches forming temperature, bring it down over the tooling and apply vacuum. Lexan sheet sets up very quickly, permitting a much shorter cycle than is possible with most other materials. Remove the formed part from the mold as soon as the material is form-stable and still hot to the touch. Avoid stress build-up and difficult removal due to post mold shrinkage by removing the part from the tool when the part temperature reaches 250 F (121 C). If possible, perform the trimming operation while the part is still warm to minimize flange warpage. Texture Retention During Forming To preserve the fine texture on the Lexan XHR6000 sheet, keep the sheet surface temperature on the textured side below 390 F (200 C). Also, during the forming process, profiling the vacuum forming ovens can be beneficial. The heaters that directly impinge on the textured surface should be set to a lower output than the bottom side ovens. EXAMPLE: top heater output set at 25% bottom heaters to 77 or 75% will be a good starting point. If these settings increase the forming cycle time to an unacceptable level, try increasing the bottom heaters to 90% or higher. Always preheat the clamp frame to 250 F (121 C) and maintain them at this temperature. It is common to paint clamp frames black to maximize radiant heating of the frames. If small individually controlled heating elements are not available, shading is sometimes used on the center portion of the sheet to allow faster heating of the clamp and sheet edges. Heaters may also be put into the clamps themselves. Allow 1/2 to 1-1/4 (13 32 mm) between the clamp frame and the mold vacuum box to permit a positive seal. SABIC Innovative Plastics 5

6 Controlling Sagging As the Lexan XHR6000 sheet approaches forming temperature, it will begin to sag. The edges and corners of the sheet along the metal clamp frames must be softened sufficiently to provide a vacuum seal when the sheet is pulled over the vacuum box and mold. The sag is predictable, and is a reliable method of determining the heating cycle. Shading or Screening Shading, a technique used to balance out hot spots in an oven for temperature uniformity, can also be used to control the sag of Lexan XHR6000 sheet when heated. In addition to preheating the metal clamp, cold edges and corners can be overcome by using ordinary metal window screening to shade all of the sheet except several inches along the edges. 4. Sag and Tool Placement 5. Screening or Shading During Forming Vacuum Forming Vacuum Forming Metal Window Screen Sag Without Screen Heated Sheet Sheet Drape (Sag) Clamp Frame 1/2 inch (12.7 mm) Clamp Mold Vacuum box Heat Source Clamp Sag Without Screen Screen Sheet 4 5 Uniform sag and consistent forming cycles are necessary for good part detail and proper registration of predecorated parts. To determine sag automatically, install an electric eye on the equipment. Determine the proper sag using a manual cycle, then set the electric eye to trip the forming sequence thereafter. Another reliable method for consistent part-to-part forming is to use an IR sensor to trigger the cycle at a given sheet surface temperature. The window screen can be positioned on a support rack between the heaters and the Lexan XHR6000 sheet. The number of layers and position of the screen depends on the desired location and shape of the sag. When using shading, heat slowly. This is especially important with heavier gauges of sheet to prevent gradient heating and to provide more opportunity for heat to be conducted to the center of the sheet. Reduce the heating rate by using a lower intensity or by moving the sheet away from the heaters. A final satisfactory but less accurate method of controlling total heat input is to control the heating time. During production runs, electrical power fluctuations can cause variations in heat output. Air drafts, which affect the rate of heat absorption or oven temperature build-up, can also cause changes in the heating rate of the sheet. Since variation is often small, this type of heating control can be used for regulating sheet temperature. However, for the most critical type forming (prescreened sheets), more precise control, such as electric eye drape control or triggering off of sheet temperature, may be required. 6 SABIC Innovative Plastics

7 Mold Design Mold Materials Internally heated cast or machined aluminum molds have been successfully used with Lexan XHR6000 and are suggested for long production runs and parts that require fine, small areas of definition. Small production runs and prototype parts can be produced using woods, epoxy, silicone, and other similar materials allowing for inexpensive prototyping and tooling modifications if part changes are necessary. Shrinkage Allow for 0.7 to 0.9% of part dimension for mold shrinkage. Draw Ratio Lexan XHR6000 is capable of a 3 to 1 draw ratio (300%). That is the height of draw can be three times the width of the part or the ratio of the original sheet thickness to the stretched sheet thickness can be 3/1. Draft Angles Use large draft angles of 5-7 when part geometry allows. Minimum draft angles should be two to three degrees on a male mold and one half to one degree on a female mold. Molds with textured surfaces may need more draft so the part will release without scratching. Approximately one degree per mil (25 micron) of texture depth is usually sufficient. Radii and Fillets Radii on ribs and fillets should not be less than the minimum part thickness. The radii should be as much as four to ten times the wall thickness in areas of high loading or where extra stiffness is required. Radii should increase as part depth increases. Undercuts Generally, undercuts should be avoided. However, if they are necessary, removable inserts or cam-action mold parts should be used. 6. Mold with Cam and Removable Inserts 7. Release for Mold with Cam and Removable Inserts Removable Insert Mechanically Retracted Arm Air-actuated Solenoid Formed Part Vacuum chamber Vacuum chamber 6 7 SABIC Innovative Plastics 7

8 Vacuum holes Vacuum holes should be drilled in all areas that require detail. These vacuum evacuation holes should be kept as small as possible to minimize dimple formation of the finished part. Vacuum holes with diameters less that inch (0.750 mm) should minimize dimple mark-off. Back drilling with larger holes will produce a more rapid air evacuation and make drilling the small surface holes easier. Molds can also be made with long slots instead of holes to remove air. Slots are most commonly used in female tooling with a loose bottom insert or for perimeter vacuum on male tools. Slot gaps should be inch (0.75mm). Mold Surface Finish Since the part detail is better on the side of the material that contacts the mold, female molds are used when exterior part details are required, and male molds should be used when the interior of the part requires detail. Male molds may also be preferred when the exterior surface details are minimal and the exterior polish or matte finish of the sheet needs to be preserved. Large flat mold surfaces should not be highly polished because they will restrict the flow of vacuum and can cause air entrapment. Slightly sand the mold surfaces in the direction of draw to insure proper vacuum evacuation (600 grit paper is recommended). Plug Assists Plug assists pre-stretch the sheet and assist in forming. Plugs are designed to conform to the cavity. Compared to the cavity, plugs should be 10 percent to 20 percent smaller in length and width to allow for clearance between the sheet and the mold. Moreover, the plug should have no sharp corners. 8. Vacuum Forming with Plug Assist Flat- or Blunt-Nosed Plug Plug Bullet or Bull-Nose Plug Plug Ring Plug 8 8 SABIC Innovative Plastics

9 Thermoforming Troubleshooter Blue Spots Spots form due to the combination of TiO2 in the formulation of white colored sheets combined with the presence of organic fiber such as polyester fibers from clothes at elevated temperatures. 9. Organic Fiber After Thermoforming 10. Blue Spot Witness From Organic Fiber During Forming Reason: TiO2 is a heat conductor facilitating organic fiber decomposition Trace amount of organic fiber impurities are not detected by conventional analytical techniques Recommendations for Minimizing Spots: Clean surface thoroughly before forming Minimize forming temperatures if possible 9 Additional Troubleshooting Tips can be found on the following page. 10 SABIC Innovative Plastics 9

10 Table 2: Troubleshooting tips Problem Possible Causes Suggested Solutions Voids or Bubbles in Formed Parts Excessive moisture in sheet. Dry as recommended. 250 F (121 C) for specified time with minimum separation of one inch between sheets. Crazed or Brittle Parts Part Warpage Mold design. Part left on mold too long. The use of incompatible mold lubricants. Mold too cold. Clamp frames too cold. Part left on mold too long. Mold radii should be at least the thickness of material. Remove part from mold as soon as it becomes form stable. Use compatible powdered mold release. Preheat mold F ( C). Preheat clamp frames. 250 F (121 C) Remove part from mold as soon as it becomes form stable. Non-Uniform Drape Uneven heating of sheet. Check heater section and adjust. Use selective screening if necessary. Check for cold air drafts. Difficult Part Removal Poor Surface Finish Insufficient Draw Down Poor Definition Webbing or Bridging Chill Marks Loss of Vacuum Seal Material Pulling Out of Frames Excess Thinning Severe Necking Poor Surface Finish Uneven Material Distribution Wrinkles on Flat Horizontal Surfaces Texture Washout and Excess Gloss Pinholing or Pimples Insufficient draft angle mold undercuts. Mold finish perpendicular to direction of part removal. Ejection pressure too low. Mold surface too rough. Mold mark-off. Draft angle. Improper sheet heating. Insufficient vacuum. Poor mold design. Improper mold layout. Blank too large for mold. Material overheated. Improper mold design. Vacuum rate too fast. Mold too cold. Insufficient draft angle and radii. Cold clamp frames. Improper spacing between clamp frames and vacuum box. Insufficient clamp area. Inadequate clamp pressure. Uneven heating. Drape speed too fast. Improper forming temperature. Mold design. Incorrect forming technique. Excess thickness variation. Uneven heating. Non-uniform clamp pressure. Improper forming technique. Uneven cooling due to slow drape speed. Material too hot (too much sag or drape). Forming temperature too high. Improper heating technique. Vacuum holes too large. Dust on mold or sheet. Mold too cold/too smooth surface finish. Vacuum rate too high. Increase draft angle. Use strip rings or cam action mold. Resurface mold. Sand mold sides vertically. Add air holes, increase injection pressure. Use powdered mold release. Draw-polish mold or use different mold material. Use silicone or powdered mold lubricant sparingly. Increase draft angle. Increase heating time and temperature. Check vacuum system for leakage. Add more vacuum holes. Check for good seal between clamp frames and vacuum box. Increase spacing between molds. Use grid or ring assist. Leave minimum of material around mold. 2 is a good rule of thumb. Shorten heat cycles. Increase radii and draft angle. Slow down vacuum rate (use smaller vacuum holes). Restrict main vacuum lines. Mold should be heated F ( C). Increase mold radii and draft angles. Preheat clamp frames 250 F (121 C). Minimum space between clamps and vacuum box 1/2 to 3/4. Adjust clamp points uniformly at sheet perimeter. Increase clamp pressure to maximum. Control sheet temperature. Use center screening to allow more heat at sheet perimeter. Set drape speed to not exceed 4.9 inches (125 mm) per second. Ideal forming temperature F ( C). Increase upper radii. Try snapback or billow-forming techniques. Check gauge tolerances. Check uniformity of heater output. Screen if necessary. Maintain uniform clamp pressure to avoid pull-out. Use billow or snapback forming method. Drape at higher speed 6.8 in (173 mm) /sec. Screen center of sheet allowing edges to heat first. Use taller vacuum box to provide more pull by area. Reduce heater inputs and cycle time. Heat sheet from smooth side. Keep texture cool. Precoat texture with strip-able mask such as TR4997 by Spraylat Corp. Use 50-mil (1.25 mm) holes or smaller. Clean mold and sheet with deionizing airgun. Keep mold temperature at F ( C). Sand mold surface with medium grit paper. Place small orifice over main vacuum holes. 10 SABIC Innovative Plastics

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12 Fabrication The following section discusses the techniques and processes used to fabricate finished products from Lexan XHR6000 sheet and provides recommendations and advice on how to achieve the best results Bonding and Fastening The table at the bottom of this page lists several adhesives and shows their bond strength as well as their chemical compatibility with Lexan XHR6000. Of the products tested, 3M Scotch Weld and IPS Weld-On 55 1 provided acceptable results. Adhesive thickness is critical to producing acceptable bonds and the adhesive supplier should be consulted for the optimum thickness to use. Circular Saws The blade should be designed to minimize blade body rubbing during sawing. Fine tooth hollow ground blades and triple chip carbides are excellent choices and will produce a good quality surface finish. Thin gauge sheet: 1/16 3/32 ( mm) Hollow ground panel blades teeth per inch (25 mm). Heavy gauge sheet: 1/8 1/2 ( mm) Triple chip cut carbide blades with alternating bevel and straight teeth. 3 teeth per inch (25 mm). Cutting Lexan XHR6000 sheet can be cut with a variety of common hand-held and table mounted sawing equipment. Remember, take care to protect yourself from injury. Use appropriate eye and ear protection and exercise caution when operating cutting equipment. Band Saws Lexan XHR6000 sheet can be cut in all thicknesses satisfactorily with band saws teeth per inch (25 mm). Blade speeds: feet per minute ( m/min). Special attention to blade design and cutting speed is important to obtain good quality finishes. Table 3: Adhesive Compatibility with Lexan XHR6000 Adhesive Type Lap Shear Value XHR to XHR (3-10 MPa is typical) Lap Shear Value XHR to Aluminum (3-10 MPa is typical) Chemical Compatability (MPa) (psi) (MPa) (psi) Uralane 5774A/C 5,1 740 Compatible at 23 C Not Compatible at 80 C Uralane 5774A/C 3,7 537 Compatible at 23 C Not Compatible at 80 C Uralane 5774A/C 3,3 475 Compatible at 23 C Not Compatible at 80 C Uralane 5774A/C 2,8 413 Compatible at 23 C Not Compatible at 80 C Simson ISR ,8 112 Methylene Chloride > 7 > 1000 Not Compatible 34% loss of impact 3M Scotch Weld DP part 2, Not Compatible >90% loss of impact 3M Scotch Weld DP part 1, ,1 450 Not Compatible >90% loss of impact 3M Scotch Weld DP190 2 part epoxy 3, ,6 375 Marginal 15% loss of impact 3M Fastbond 30 NF Contact Cement 0,4 62 0,4 62 Compatible no loss of impact 3m Scotch Weld part epoxy 3, ,8 400 Not Compatible 8% loss of impact and edge craze Mighty O Putty 2 part epoxy 0,6 90 1,9 275 Compatible no loss of impact IPS Weld-On 3 Organic Solvents > 7 > 1000 Not Compatible 77% loss of impact IPS Weld-On 4 Organic Solvents 6,6 950 Not Compatible 71% loss of impact IPS Weld-On 10 two part Acrylic 3, ,6 375 Not Compatible >90% loss of impact IPS Weld-On 16 Organic Solvents 4,7 675 Not Compatible >90% loss of impact IPS Weld-On 40 two part acrylic monomer 2, ,2 320 Not Compatible >90% loss of impact IPS Weld-On 45 two part Acrylic monomer > 7 > 1000 > 7 > 1000 Not Compatible 77% loss of impact IPS Weld-On 55 two part Urethane 2, ,8 410 Compatible no loss of impact IPS Weld-On 58 two part Urethane 2, ,4 200 Compatible no loss of impact C&D Aerobond 1507 A/B 1, ,8 550 Not Compatible 97% loss of Impact JD -301 A/B 1, ,7 250 Not Compatible 97% loss of Impact Suggested Marginally Acceptable depending on Conditions and Needs Not Suggested (bond too low or not chemically compatible) 12 SABIC Innovative Plastics

13 Milling and Routing High rotating speeds or low feed rates are advisable for end milling. Higher feed rates are permissible, but only with increased milling speeds. The use of right or left handed spiral cutting bits with handheld or table mounted routers will minimize material chatter and help hold the Lexan XHR6000 sheet against the router surface. Bit Recommendations Spiral router bits are preferred. Two- or three-fluted carbide tipped bits, 3/8 1/2 ( mm) diameter, can also be used. Router Speeds No-load speeds: 25,000 30,000 rpm. Shearing, Punching, and Blanking Punching and shearing are effective methods for cutting Lexan XHR6000 sheet into workable sizes. However, the sheared edge should be removed by a secondary routing operation to minimize high stress areas. Compared to acrylic, which will shatter, Lexan XHR6000 sheet will not crack or craze during shearing, punching or blanking when sharp tools are used. Shearing Smooth cuts can be obtained by shearing with the following guidelines: Shear blades: 45 angle or less Maintain ( mm) clearance between blade and shear bed. Punching Hollow ground punches can be successfully used, but it may be necessary to make provision for hole shrinkage if hole diameter tolerance is critical. 11. Suggested Router Blade Design Cuttin Edge Punching Example: Hole Diameter Sheet Thickness Typical Shrinkage 1/2 (12.7 mm) 1/8 (3.2 mm).007 (0.175 mm) 1/4 (6.4 mm) 1/8 (3.2 mm).004 (0.1 mm) 11 Drilling Lexan XHR6000 sheet can be drilled easily using a standard twist drill design. High speed steel or carbide tipped twist drills will give the best results with the following conditions. Blanking The ductility of Lexan XHR6000 sheet allows for blanking with clean edges, unlike acrylic which is far more brittle. Conventional steel rules and clicker dies provide excellent results. Sharp tools yield best edges. Hole Diameter Speed (rpm) Feed mils./rev. (mm/rev.) Time (sec.) 1/8 (3.2 mm) ( ) /4 (6.4 mm) ( ) 30 3/8 (9.6 mm) ( ) 30 1/2 (12.7 mm) (0.07) /4 (19.2 mm) (0.07) To minimize the drill s tendency to pull into the material, modify the standard steel twist design by grinding a small flat on the cutting edge. NOTE: Do not use drills that have been ground for use on acrylic sheet. They will overheat the material, and induce unwanted stresses. SABIC Innovative Plastics 13

14 Decorating Lexan XHR6000 sheet can be painted using HSH paints and preferable after using a Bostik Prep K primer coating that has been allowed to completely evaporate. The following chart shows the results of studies done with HSH paints on Lexan XHR6000. NOTE: Proper ventilation procedures as recommended by the specific paint supplier, should be followed at all times. Table 4: HSH Paint System Compatibility with XHR6000 Per ISO 2409 Sand Surface w/ Pretreat surface w/ Adhesion Promoter 1 Component System 2 Component System HSH Primer IP 750PC HSH Topcoat IP1065 IP750PC/ IP1065 HSH primer IP 1200 HSH topcoat IP1083 Scotch Brite MPK GT 0-1 GT 1 GT 1 GT 1-2 GT-4 GT 1 IPA GT 0-1 GT 1-2 GT 2 GT 1-2 GT 3 GT 2 PK GT 0 GT 0 GT 0 GT 0 GT 0 GT 0 No Scotch Brite MPK GT 0-1 GT 2 GT 0-1 GT 3-4 GT 3 GT 4 IPA GT 4 GT 4 GT 4 GT 4 GT 4 GT 4 PK GT 0 GT 0 GT 0 GT 0 GT 0 GT 0 MPK = MethylPropylKeton Cross hatch adhesion values IPA = Isopropyl Alcohol GT 0 = Best PK = Prep K from Bostik GT 4 = Worst Chemical Compatibility Note Pretreatment with Prep K from Bostik must be followed by full evaporation of the Prep K prior to applying paint or adhesive systems. Samples that did not have post evaporation showed visible signs of crazing at 60 C and 0.5% strain. Samples that did have post evaporation showed no signs of attack at 60 C and 1% strain after 7 days. IP1200/ IP SABIC Innovative Plastics

15 Stain Resistance and Cleaning Lexan XHR6000 has excellent chemical resistance to common cleaners and excellent stain resistance to common substances found in transportation applications. The following tables show the results of chemical compatibility tests with cleaners and how to clean typical stains. Table 5: XHR6000 Cleaner Compatibility Cleaner Type Aqueous Cleaners Formula 409 Mr. Clean Ivory Liquid Windex with Ammonia D Touch-Up Glass Cleaner Organic Solvents Naptha (VM&P grade) Butyl Cellosolve Transit Cleaner FO Alkaline water base cleaner Alcohol Isopropyl Alcohol Disinfectant/Bacteriostatic Cleaners Staticide Cleaning compound Virox 5 Cleaner / Fail Each cleaning solution was placed on the stressed surface (2000 psi) of a inch thick sample of XHR6000 sheet. The solution remained wet for a one hour period and was then removed from the sheet surface. The surface was then inspected for any adverse visual surface attack or material cracking. Table 6: XHR6000 Stain Resistance Substance Removed With Soda Wine Catsup Mustard Lemon Juice Fruit Preserve Gatorade Milk Tea Hot Chocolate Coffee Formula 409 Newspaper Print Formula 409 Rubber heal scuff Isopropyl Alcohol (IPA) Pencil Isopropyl Alcohol (IPA) Ball Point Pen Isopropyl Alcohol (IPA) Sanford Sharpie Marker Isopropyl Alcohol (IPA) Sanford Water Resistant Marker Butyl Cellosolve (ethylene glycol monobutyl ether) Each substance was put onto XHR6000 textured sheet for a 24 hour period at 73 F. Each substance was then cleaned with the appropriate chemically compatible product to remove the substance. SABIC Innovative Plastics 15

16 Contact us Americas: SABIC Innovative Plastics Specialty Film & Sheet One Plastics Avenue Pittsfield, MA USA T F Europe: SABIC Innovative Plastics Specialty Film & Sheet Plasticslaan PX Bergen op Zoom The Netherlands T F Pacific: SABIC Innovative Plastics Specialty Film & Sheet 1468 Nanjing Road (W) 26th Floor, United Plaza Shanghai China T F sfs.info@sabic-ip.com THE MATERIALS, PRODUCTS AND SERVICES OF SABIC INNOVATIVE PLASTICS HOLDING BV, ITS SUBSIDIARIES AND AFFILIATES ( SELLER ), ARE SOLD SUBJECT TO SELLER S STANDARD CONDITIONS OF SALE, WHICH CAN BE FOUND AT AND ARE AVAILABLE UPON REQUEST. ALTHOUGH ANY INFORMATION OR RECOMMENDATION CONTAINED HEREIN IS GIVEN IN GOOD FAITH, SELLER MAKES NO WARRANTY OR GUARANTEE, EXPRESS OR IMPLIED, (i) THAT THE RESULTS DESCRIBED HEREIN WILL BE OBTAINED UNDER END-USE CONDITIONS, OR (ii) AS TO THE EFFECTIVENESS OR SAFETY OF ANY DESIGN INCORPORATING SELLER S PRODUCTS, SERVICES OR RECOMMENDATIONS. EXCEPT AS PROVIDED IN SELLER S STANDARD CONDITIONS OF SALE, SELLER SHALL NOT BE RESPONSIBLE FOR ANY LOSS RESULTING FROM ANY USE OF ITS PRODUCTS OR SERVICES DESCRIBED HEREIN. Each user is responsible for making its own determination as to the suitability of Seller s products, services or recommendations for the user s particular use through appropriate end-use testing and analysis. Nothing in any document or oral statement shall be deemed to alter or waive any provision of Seller s Standard Conditions of Sale or this Disclaimer, unless it is specifically agreed to in a writing signed by Seller. No statement by Seller concerning a possible use of any product, service or design is intended, or should be construed, to grant any license under any patent or other intellectual property right of Seller or as a recommendation for the use of such product, service or design in a manner that infringes any patent or other intellectual property right. SABIC Innovative Plastics is a trademark of SABIC Holding Europe B.V. * Trademark of SABIC Innovative Plastics IP B.V SABIC Holding Europe B.V. All Rights Reserved Printed in The Netherlands