Note to converters: This product is compatible solely with transparent bottles produced in a two- stage injection stretch blow molding process.

They are designed for applications in which dispersion, uniformity, compatibility and cleanliness are desired.

Note to converters: This product is compatible solely with transparent bottles produced in a two- stage injection stretch blow molding process.

Edgetek™ ET8900 CR Series Chemically Resistant Thermoplastics Deliver Advanced Protection Today’s increased disinfecting and cleaning protocols can lead to deterioration and reduce the useful product life for polymeric materials that lack proper chemical resistance properties. Developed to meet these challenges, Edgetek ET8900 CR thermoplastics show improved chemical resistance to common consumer disinfectants compared to PC/ABS, PC/PET and PC/PBT. Improved Chemical Resistance $$$$ $$$ $$ $ FR PC/ABS FR PC/PET FR PC/PBT Edgetek™ CR

Available with 10–40% short glass fiber fillers, these formulations provide superior chemical resistance, low moisture uptake, excellent dimensional stability, and high impact and wear resistance. KEY CHARACTERISTICS • Excellent chemical resistance • Low moisture uptake • Comparable dimensional stability to nylon • Reinforced with 10–40% short glass fiber • High impact and wear resistance • Cost competitive • Eco-conscious alternative to PA66 and PA6 • Non-halogen, flame retardant performance MARKETS & APPLICATIONS These glass-reinforced materials meet the challenges found in chemical, fuel contact, and high moisture environments Density Impact Flexural Tensile HDT Equilibrium Moisture — PKE-GF PA12-GF PA612-GF 5 4 3 2 1 0 Impact Shrink Modulus Chemical Resistance Flexural (Cond.)

AVIENT SOLUTION LEADING EV MANUFACTURER C H A R G I N G G U N G R I P • Good abrasion resistance • Excellent chemical resistance • Nice surface finish • Good bonding with flame retardant PC/ABS • Provided a rubbery touch feel, chemical resistance (including to ethanediol), and better appearance than the incumbent TPV solution • Eliminated a secondary process through two- shot injection molding with good adhesion to PC, ABS, PC/ABS, and copolyester handles • Offered quick technical support to accelerate the product development KEY REQUIREMENTS CHEMICAL RESISTANCE + BONDING LEARN MORE Versaflex™ TPE Formulation Copyright © 2023, Avient Corporation.

VIROSPACK C O S M E T I C D R O P P E R S • Improved chemical resistance • Hardness 45 – 50 • Natural/transparent color • Food contact compliance • REACH compliance • Provided dedicated customer service resources • Reduced cycle time while maintaining similar mechanical properties • Provided a material with easy molding • Enhanced chemical resistance to oil in extreme conditions Versaflex™ Thermoplastic Elastomer KEY REQUIREMENTS WHY AVIENT? AVIENT SOLUTION CHEMICAL RESISTANCE + COMPLIANCE LEARN MORE Copyright © 2020, Avient Corporation.

COSMETIC PACKAGING OEM L I P G L O S S T I P B R U S H • Good chemical resistance • Shore 40A hardness at a 60-degree angle • Natural/transparent color • Can be flocked • Delivered a formulation with good chemical resistance to oil in long-term environments • Provided an easy-to-mold TPE and replaced TPU/TPEE with a better soft touch feel • Offered good adhesion with an epoxy resin glue with no impact on the flocking process Versaflex™ Thermoplastic Elastomers KEY REQUIREMENTS WHY AVIENT? AVIENT SOLUTION CHEMICAL RESISTANCE + EASY PROCESSING LEARN MORE Copyright © 2023, Avient Corporation.

ENERGY STORAGE OEM A Q U E O U S B A T T E R Y G A S K E T • Sealing performance from -40 to 110°F • Ability to flow in a long, thin seal design • Chemical resistance to a proprietary electrolyte solution • Natural color • Provided a chemically resistant TPE that outperformed competitive TPE and thermoplastic rubber in rigorous customer testing • Offered material expertise and education to empower an informed material decision • Enabled OEM to model and evaluate sealing performance via design support and data files • Met global production needs through material consistency and local technical support Dynaflex™ Thermoplastic Elastomer KEY REQUIREMENTS WHY AVIENT? AVIENT SOLUTION SEALING + CHEMICAL RESISTANCE LEARN MORE Copyright © 2022, Avient Corporation.

This adhesive is not very chemically resistant, and has lower strength properties. 14 Gravi-Tech CHAPTER 4 | MOLD DESIGN GUIDELINES COLD RUNNER LAYOUTS Herringbone (Fishbone) Runner This type of runner has an unbalanced fill, which can be artificially balanced by adjusting runner sizes. Design Guide 33 Mold damages Loss of clamp force Barrel malfunction Melt temperature Injection speed Transfer position Excessive pack Excessive back Repair mold damage Clean parting line Reduce pinch-off land Increase clamp force Dry material Reduce melt Reduce mold Reduce hold pressure Increase transfer Flash • Excess material commonly found at parting lines or mold features Root cause: Too much plastic or mold damage. 34 Gravi-Tech Design of gate too small or in wrong location Machine not providing Heater overriding Viscosity too low Injection velocity too high Melt temperature Remove sharp corners from Change gate type Move gate to a position where the melt stream will impinge upon a mold feature Dry material Reduce injection Increase melt Jetting Root cause: Injection speed is too high for the viscosity of the material Design Guide 35 Finish too rough Screw configuration Overworking material Non-compatible additive Melt temperature too high Remove sharp corners from Use smaller screw/barrel Check melt uniformity Check L/D ratio Check additive compatibility Reduce melt Reduce screw speed Reduce residence time Plate-Out • Build-up or deposit on mold surface Root cause: One component of the material is not totally compatible. 36 Gravi-Tech Shut-off partially turned Screw problems Barrel heater problems Material too dry Under-packing Not enough pack Melt temperature Transfer position Make sure gate is not blocked Insure runner shut-off is not turned Check venting Change gating location Add flow leader Insure cushion position Make sure screw is transfer- ring at a correct Change screw/barrel Make sure material was dried at proper settings Increase melt Increase mold Decrease transfer 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. End of Fill Part Length Dynamic Pressure Hydrostatic Pressure P ss Gate End Part FIGURE 61 - Deflection Equations H F WLMax Deflection: 0.002" (0.05mm) 1 = W • H3 12 _______ bending = F • L3 48 • E • I _______ k Vcoolant nmax, coolant • Pcoolant • Cp, coolant Dmin = k Vcoolant nmax, coolant • Pcoolant • Cp, coolant Dmin = k Vcoolant nmax, coolant • Pcoolant • Cp, coolant Dmin = FIGURE 60 - Pressure vs Part Length FIGURE 61 - Deflection equations FIGURE 62 - For Plate Shaped Parts FIGURE 63 - For Cylindrical Shaped Parts Design Guide 49 • MMoldings = Combined mass of molded parts • Cp = Specific Heat of the material Step 3 – Heat Removal Rate • Nlines = The total number of independent cooling lines there are in the mold • tc = The cooling time required by the part (Determined in step 1) Step 4 – Coolant Volumetric Flow Rate • ΔTMax,Coolant = Change in coolant Temperature During Molding (1°C) • ρCoolant = Density of coolant • CP = Specific heat of coolant Step 5 – Determine Cooling Line Diameter • ρCoolant = Density of coolant • VCoolant = Volumetric flow rate of coolant • μCoolant = Viscosity of coolant • ΔPline = Max pressure drop per line (Usually equals half of the pump capacity) • LLine = Length of the cooling lines COOLING LINE SPACING k Vcoolant nmax, coolant • Pcoolant • Cp, coolant Dmin = k Vcoolant nmax, coolant • Pcoolant • Cp, coolant Dmin = k Vcoolant nmax, coolant • Pcoolant • Cp, coolant Dmin = k Vcoolant nmax, coolant • Pcoolant • Cp, coolant Dmin = k Vcoolant nmax, coolant • Pcoolant • Cp, coolant Dmin = k Vcoolant nmax, coolant • Pcoolant • Cp, coolant Dmin = 2D < H < 5D H < W < 2H FIGURE 70 - Cooling Line Spacing FIGURE 64 - Heat Transfer Equation FIGURE 65 - Total Cooling for Mold FIGURE 66 - Cooling Required by Each Line FIGURE 68 - Max Diameter Equation FIGURE 69 - Min Diameter Equation FIGURE 67 - Volumetric Flow Rate Equation 50 Gravi-Tech ADHESIVE ADVANTAGES DISADVANTAGES Cyanoacrylate Rapid, one-part process Various viscosities Can be paired with primers for polyolefins Poor strength Low stress crack resistance Low chemical resistance Epoxy High strength Compatible with various substrates Tough Requires mixing Long cure time Limited pot life Exothermic Hot Melt Solvent-free High adhesion Different chemistries for different substrates High temp dispensing Poor high temp performance Poor metal adhesion Light Curing Acrylic Quick curing One component Good environmental resistance Oxygen sensitive Light source required Limited curing configurations Polyurethane High cohesive strength Impact and abrasion resistance Poor high heat performance Requires mixing Silicone Room temp curing Good adhesion Flexible Performs well in high temps Low cohesive strength Limited curing depth Solvent sensitive No-Mix Acrylic Good peel strength Fast cure Adhesion to variety of substrates Strong odor Exothermic Limited cure depth Design Guide 51 Bibliography 1.