Additional draft may be required for grained/textured surfaces Gates • All types of gates can be used such as pin, fan, tunnel, tab and edge gates.

A combination of novel material technology, part and tool design as well as innovations in overmolding technology will continue to fuel the imagination of the designer community to meet the everdemanding needs in ergonomics, aesthetics and value addition in the consumer market. In addition the diffusion, viscoelastic properties of the elastomer have an influence on the adhesion properties as well.

It is also possible to add additional surface texture to a finished product by bead-blasting or chemically texturing the mold used in processing the material. With the right additives, TPEs can also hold up to UV. https://en.wikipedia.org/wiki/UV_degradation Biocompatibility PERFORMANCE COMPARISON LSR has a long-standing track record of use in the medical industry.

Formulated for the consumer and transportation markets, reSound recycled content TPE grades can be used in applications such as personal care products, lawn and garden tools, outdoor goods, office supplies, footwear, houseware durables, consumer electronics, and automotive interior and under-the-hood components. reSound™ REC VX2800-0001 I 65A Natural reSound™ REC VX2800-0001 I 65A Black reSound™ REC VX2800-0002 I 65A Black reSound™ REC VX0100-0001 AR I 80A Black Recycled Content PIR PIR PIR PIR Recycled Content, % 25% 25% 40% 30% Recycled Source Carpet Backing, Nonwovens, Films, Super Sacks Carpet Backing, Nonwovens, Films, Super Sacks Proprietary Blend Proprietary Blend Hardness, Shore A 65 65 65 80 Color Natural Black Black Black Specific Gravity 0.88 0.89 0.88 1.05 Tensile Strength, PSI 784 788 1023 1400 Elongation at Break, % 687 662 673 700 Compression Set @ Room Temperature 29 27 30 – OM Substrate PP PP PP PC, ABS, PC/ABS Processing IM or OM IM or OM IM or OM IM or OM Agency Rating – – – – NORTH AMERICA GRADES reSound™ REC VX2800-9003 C 47A Natural reSound™ REC VX2800-9004 C 54A Natural reSound™ REC VX2800-0001 C 65A Black Recycled Content PCR PCR PCR Recycled Content, % 25% 25% 25% Recycled Source Transportation Transportation Ocean-bound Plastic Hardness, Shore A 47 54 65 Color Natural Natural Black Specific Gravity 0.94 0.95 0.89 Tensile Strength, PSI 250 311 900 Elongation at Break, % 585 581 670 Compression Set @ Room Temperature – – 25 OM Substrate PP PP PP Processing IM or OM IM or OM IM or OM Agency Rating – – – Automotive Testing* – – – NORTH AMERICA GRADES *Additional testing can be performed to confirm specific customer requirements.

This is usually achieved via the addition of vents at the ends of flow (full peripheral venting is the best solution). This is usually achieved via the addition of vents at the ends of flow (full peripheral venting is the best solution). In addition, a rough EDM or sandblast finish should be used for the runners and a polished finish for the sucker pins.

What additional data is provided when product is shipped? In addition, all these same equipment/tools and processes are typically subject to a formal continuous improvement approach using Lean Six Sigma techniques to ensure that we maintain our competitive edge. 3.

Not surprisingly, the healthcare market has additional regulatory requirements for those creating medical products and devices.

In addition, the right material selection matters for meeting evolving industry needs.

Stringers Bulkheads, Decking and Transoms Doors and Cabinetry Ceilings and Hatches MECHANICAL PERFORMANCE Superior strength-to-weight ratio PROPERTY TEST METHOD PANEL THICKNESS .50" .75" 1.00" 13 mm 19 mm 25 mm Core Density* ISO 845 7 lb/ft3 7 lb/ft3 7 lb/ft3 115 kg/m3 115 kg/m3 115 kg/m3 Flexural Rigidity ASTM D7249 35,000 lb/in2 10.3 kg/m2 75,000 lb/in2 21.9 kg/m2 118,000 lb/in2 34.5 kg/m2 Areal Weight Calculated 0.89 lb/ft2 4.3 kg/m2 1.03 lb/ft2 5.0 kg/m2 1.17 lb/ft2 5.7 kg/m2 Core Shear Yield ASTM C393 101 psi 0.70 MPa 96 psi 0.66 MPa 88 psi 0.61 MPa Max Load ASTM C393 357.5 lbs 162.2 kg 513.4 lbs 232.9 kg 551.1 lbs 250.0 kg Core Shear ULT ASTM C393 113 psi 0.78 MPa 109 psi 0.75 MPa 94 psi 0.65 MPa Face Bend Stress ASTM C393 9,008 psi 62.11 MPa 8,725 psi 60.16 MPa 7,542 psi 52.00 MPa USES & APPLICATIONS * Additional core density panels are available in 5 lb/ft3 (80 kg/m3) and 8 lb/ft3 (135 kg/m3).

CHAPTER 1 | APPLICATION SUMMARY Design Guide 5 GRAVI-TECH GT5200-0013 GRAVI-TECH GT6000-0004 GRAVI-TECH GT7300-0006 GRAVI-TECH GT5200-5003 GRAVI-TECH GT6000-5002 GRAVI-TECH GT7300-5007 Specific Gravity* 2.0 3.0 2.0 2.5 2.6 2.2 Color Options* Various Various Black to Grey Black Various Various Electroplating No Possibly Yes Possibly Possibly Yes Base Resin PP PA6 ABS PP PA6 ABS FDA Compliant* Yes Yes Yes Yes No Yes Region Produced North America North America North America Europe Europe Europe Full Name X GT5200-0013 PT White X GT6000-0004 PT White X GT7300-0006 PT Black GT7300-5003 Black FD GT6000-5002 EI White 1 GT7300-5007 X2 White FD *Please contact Avient for additional information 6 Gravi-Tech CHAPTER 2 | PROCESS SETTINGS Density Modified Formulations Gravi-Tech™ polymer-metal composites are high-density materials developed as thermoplastic- based alternatives to metals. DEFECTS Design Guide 33 SOURCES Mold Machine Material Process Mold damages Loss of clamp force Barrel malfunction Contamination Wet material Melt temperature too high Injection speed too high Transfer position too low Excessive pack pressure Excessive back pressure RECOMMENDED ADJUSTMENTS Repair mold damage Clean parting line Reduce pinch-off land Increase clamp force Dry material Reduce melt temperature Reduce mold temperature Reduce injection speed Reduce hold pressure Increase transfer position Flash • Excess material commonly found at parting lines or mold features Root cause: Too much plastic or mold damage. 34 Gravi-Tech SOURCES Mold Machine Material Process Design of gate too small or in wrong location Machine not providing requested velocity Heater overriding Wet material Viscosity too low Injection velocity too high Melt temperature too high Mold too cold RECOMMENDED ADJUSTMENTS Increase gate size Remove sharp corners from gate detail Change gate type Move gate to a position where the melt stream will impinge upon a mold feature Dry material Reduce injection velocity Increase melt temperature Jetting Root cause: Injection speed is too high for the viscosity of the material DEFECTS Design Guide 35 SOURCES Mold Machine Material Process Finish too rough Venting impaired Screw configuration Overworking material Non-compatible additive Melt temperature too high Back pressure too high Injection speed too fast Mold too cold RECOMMENDED ADJUSTMENTS Remove sharp corners from gate detail Insure proper venting Increase gate size Use smaller screw/barrel Check melt uniformity Check L/D ratio Dry material Check additive compatibility Reduce melt temperature Reduce screw speed Reduce back pressure Reduce residence time Reduce injection speed Plate-Out • Build-up or deposit on mold surface Root cause: One component of the material is not totally compatible. 36 Gravi-Tech SOURCES Mold Machine Material Process Venting impaired Shut-off partially turned Screw problems Barrel heater problems New lot Contamination Material too dry Under-packing Injection speed too low Not enough pack pressure Melt temperature too low Transfer position too high RECOMMENDED ADJUSTMENTS Make sure gate is not blocked Insure runner shut-off is not turned Check venting Increase gate size Change gating location Add flow leader Insure cushion position Make sure screw is transfer- ring at a correct position Change screw/barrel Make sure material was dried at proper settings Increase melt temperature Increase mold temperature Increase injection speed Decrease transfer position Short Shot • Not enough material is being injected into the mold to fill out all of the cavities Root cause: Not enough plastic is getting into the cavity. It provides additional mixing to the melt, which is especially helpful when using colorants.