Wall Thickness (mm) C o o li n g T im e ( S e c ) 40 35 30 25 20 15 10 5 0 0 1 2 3 4 ABS PC Nylon 6/6 FIGURE 1 - Wall thickness vs. cooling time of various plastics FIGURE 2 - Designing for wall thickness changes FIGURE 3 - Internal and external radius guidelines FIGURE 4 - Coring for tight radius design ESCR Design Guide 2 CONTOUR Where possible, contouring the products’ exterior form, as shown in Figure 5, can help to eliminate pooling of fluids. Figure 11 shows an example of a standard spiral molded-in insert that does a good job of minimizing sharp edges. FIGURE 11 - Molded-in inserts FIGURE 12 - Gusset placement on side wall FIGURE 13 - Side wall boss design guidelines FIGURE 14 - Gusset design guidelines ESCR Design Guide 5 Holes should follow best practices for a polymer’s viscosity and tensile strength when determining the ideal distance to the edge versus the wall thickness.

1-S-4192-A RUG ADHESIVE 1-S-4756-DMV PP FR 8-6 LMS-1000

No. 0514.01) 12/11/2023 Page 1 of 1 SCOPE OF ACCREDITATION TO ISO/IEC 17025:2017 AVIENT CORPORATION – ANALYTICAL SOLUTIONS 33587 Walker Road Avon Lake, OH 44012 Stephanie Mims Phone: 440 930 3499 MECHANICAL Valid To: September 30, 2025 Certificate Number: 0514.01 In recognition of the successful completion of the A2LA evaluation process, accreditation is granted to this laboratory to perform the following rubber and plastics tests: Test Description Test Method or Standard Brittleness Temperature (Impact) ASTM D746; ISO 812 Charpy Impact ISO 179-1 Color Determination by Spectrophotometer ASTM D2244, E1331; ISO 7724 Conditioning of Plastics for Testing ASTM D618; ISO 291 Deflection Temperature Under Flexural Load ASTM D648; ISO 75-1, -2 Durometer Hardness (Shore A and D) ASTM D2240; ISO 7619-1 Flexural Properties ASTM D790; ISO 178 Flow Rate (Extrusion Plastometer) ASTM D1238 (Procedures A and B); ISO 1133 Impact Resistance (Izod) ASTM D256; ISO 180 Instrumented Impact ASTM D3763; ISO 6603-2 Specific Gravity/Density ASTM D792 (Method A); ISO 1183-1 Specular Gloss ASTM D523; ISO 2813 Tackiness of Interior Materials BO 061-01 Tear Resistance ASTM D624, D1004; ISO 34 Tensile Properties ASTM D412 (Method A), D638, D882; ISO 37, 527-1, -2, -3, -4, -5 Xenon-Arc Exposure Testing ASTM D2565, G155; SAE J1885 (Withdrawn January 2008), J1960 (Withdrawn January 2008), J2412, J2527; BO-116-01 For the tests to which this accreditation applies, please refer to the laboratory’s Mechanical Scope of Accreditation.

ONCOLOR™ COLOR CONCENTRATES • Complete range of in-stock color solutions designed specifically for telecommunications, energy, and automotive applications - Complete Munsell color range for telecommunications applications - Complete NEMA color range for electrical applications - J1128 SAE specifications for automotive applications - UL 2885 file E482856 for halogen-free formulations • Custom color solutions for your most demanding low smoke, non-halogenated, UV, temperature, aging, and shrinkage requirements • Weatherable pigments providing color fade resistance for demanding outdoor applications • Optimized formulations for cross-linked polyethylene wire and cable constructions CESA™ PERFORMANCE ADDITIVE CONCENTRATES Custom designed additive solutions for your specific applications, providing added value through ease of processing, product performance, and operational cost savings • Laser marking - improve marking reliability and durability in all types of cable jacketing and insulating materials • Antimicrobial - help protect cables from harmful mold and bacteria growth • Nucleating agents - maintain critical dimensions and manage shrink characteristics • Chemical foaming agents - take out weight and reduce resin costs • UV stabilizers - protect resin material and extend product life • Antioxidants - maintain physical properties • Processing aids - minimize die drool associated with some materials COLORANT CHROMATICS™ HIGH- TEMPERATURE POLYMER SOLUTIONS • Fluoropolymer and high-temperature thermoplastics-based colorant and additive concentrates and compounds • Dispersed pigments for coloring PTFE • Functional additives including laser marking, foaming agents, and conductive, antistatic, radiopaque, reinforced, and cross-linked grades • Full range of printing, striping, and marking inks PRODUCT CODE LET DOWN RATIO COLOR (Munsell) CC10225921 1.00% Black CC00012573 1.00% White CC10222359 1.00% Red CC10223395 1.00% Gray CC10222361 1.00% Green CC00012376 1.00% Blue CC10222363 1.00% Orange CC10222360 1.00% Yellow CC10223394 1.00% Brown CC00012516 1.00% Purple CC10062368 1.00% Aqua CC10223396 1.00% Pink PV C PRODUCT CODE LET DOWN RATIO COLOR (Munsell) CC00000001 1.00% Black CC00012837 1.00% White CC10225296 1.00% Red CC10225298 1.00% Gray CC10225300 1.00% Green CC10225295 1.00% Blue CC10225297 1.00% Orange CC10225299 1.00% Yellow CC10225301 1.00% Brown CC10225603 1.00% Purple CC10225293 1.00% Aqua CC10225294 1.00% Pink PE ONCOLOR™ SOLUTIONS FOR TELECOMMUNICATIONS • PVC colorants designed for telecommunications and fiber optic applications • PE colorants that are excellent for foam skin and solid insulation applications • EVA colorants designed for cross-linked materials and resin applications including XLPE, XLPO, PVC, PE, and more PRODUCT CODE LET DOWN RATIO COLOR (Munsell) CC00012853 1.00% Black CC00012946 1.00% White CC10221766 1.00% Red CC10221760 1.00% Gray CC10221765 1.00% Dk Green CC10221764 1.00% Lt Green CC10221757 1.00% Dk Blue CC10221761 1.00% Lt Blue CC10221767 1.00% Orange CC10221763 1.00% Yellow CC10221758 1.00% Brown CC10221762 1.00% Purple CC10224626 1.00% Tan CC10221759 1.00% Pink EV A PRODUCT CODE LET DOWN RATIO COLOR (Munsell) CC10190635 3.00% Black CC10190642 3.00% White CC10190641 3.00% Red CC10190637 3.00% Gray CC10190638 3.00% Green CC10185195 3.00% Blue CC10185197 3.00% Orange CC10190643 3.00% Yellow CC10190636 3.00% Brown CC10190640 3.00% Purple CC10190634 3.00% Aqua CC10190639 3.00% Pink PB T PRODUCT CODE LET DOWN RATIO COLOR (Munsell) CC10246438WE 2.00% Aqua CC10245005WE 2.00% Black CC10246090WE 2.00% Blue CC10264438DR 2.00% Brown CC10245008WE 2.00% Gray CC10246092WE 2.00% Green CC10264439DR 3.00% Orange CC10261866DR 2.00% Pink CC10261867DR 2.00% Purple CC10264436DR 2.00% Red CC10245006WE 2.00% White CC10246093WE 2.00% Yellow U L 28 85 ONCOLOR™ SOLUTIONS FOR ENERGY CABLE APPLICATIONS • Recommended use rate may vary depending on specific application, process, equipment, and resin grade PRODUCT CODE LET DOWN RATIO COLOR (NEMA) CC00012342 1.00% Black CC00012575 1.00% White CC00012547 1.00% Red CC10018221 1.00% Gray CC00012444 1.00% Dk Green CC10018222 1.00% Lt Green CC00012408 1.00% Dk Blue CC00012407 1.00% Lt Blue CC10013140 1.00% Orange CC00036502 1.00% Yellow CC00012363 1.00% Dk Brown CC00012373 1.00% Lt Brown CC00012526 1.00% Purple CC10018225 1.00% Tan PV C PRODUCT CODE LET DOWN RATIO COLOR (NEMA) AB13820380 3.00% Yellow AB24820333 3.00% Orange AB32820571 3.00% Pink AB33820570 3.00% Red AB44820167 3.00% Purple AB54820507 3.00% Dark Blue AB63820502 3.00% Dark Green AB72820811 3.00% Gray AB84820533 3.00% Brown AB94820333 3.00% Black CC00016954 1.00% White N YL O N ONCOLOR™ SOLUTIONS FOR AUTOMOTIVE APPLICATIONS • EVA colorants designed for use with cross-linked materials such as XLPE • Recommended use rate is 1.00% and may vary depending on specific application, process, equipment, and resin grade PRODUCT CODE LET DOWN RATIO COLOR CC00012853 1.00% Black CC00012946 1.00% White CC10221766 1.00% Red CC10221760 1.00% Gray CC10221765 1.00% Dk Green CC10221764 1.00% Lt Green CC10221757 1.00% Dk Blue CC10221761 1.00% Lt Blue CC10221767 1.00% Orange CC10221763 1.00% Yellow CC10221758 1.00% Brown CC10221762 1.00% Purple CC10224626 1.00% Tan CC10221759 1.00% Pink EV A, J 11 28 PRODUCT CODE LET DOWN RATIO COLOR CC00012342 1.00% Black CC00012575 1.00% White CC00012535 1.00% Red CC00012461 1.00% Gray CC00012425 1.00% Dk Green CC00012426 1.00% Lt Green CC00012379 1.00% Dk Blue CC00012378 1.00% Lt Blue CC00012490 1.00% Orange CC00012585 1.00% Yellow CC00012363 1.00% Brown CC00012525 1.00% Purple CC00012561 1.00% Tan CC00012507 1.00% Pink PV C, J 11 28 A RANGE OF WORLD-CLASS SERVICES With manufacturing facilities and innovation centers across the globe, we work with you to understand your goals and provide the expertise you need for your wire and cable applications.

S-RED 1062 S-RED 1063 PP FR 8-6 LMS-1000

S-BLUE 4084 S-BLUE 4085 PP FR 8-6 LMS-1000

S-RED 1036 S-RED 1042 PP FR 8-6 LMS-1000

WS2655 WB-S MIDNIGHT SKY WS7876 WB-S SHIMMER COPPER PP FR 8-6 LMS-1000

PC-20GF/000 FR (R8) BLACK GEON EXP (JLC32A) 15503406604 BLK PP FR 8-6 LMS-1000

Certification cycle start date: 22 February 2023 Subject to the continued satisfactory operation of the organization’s Management System, this certificate expires on: 10 January 2026 Expiry date of previous cycle: : 10 January 2023 Certification audit date: 21 November 2022 Original certification date: 11 January 2017