| ABA | Poly (Acrylonitrile Butadiene Acrylate) |
| ABS | Poly (Acrylonitrile Butadiene Styrene) |
| ACM | Poly (Acrylic Acid Ester Rubber) |
| ACS | Acrylonitrile-Chlorinated Polyethylene-Styrene Terpolymer |
| ACS | American Chemical Society |
| AES | Poly (Acrylonitrile Ethylene Styrene)
or Poly (Acrylonitrile Ethylene Propylene Styrene) |
| AMMA | Poly (Acrylonitrile Methyl Methacrylate) |
| AN | Acrylonitrile |
| ANSI | American National Standards Institute |
| AO | Antioxidant |
| APET | Amorphous Polyethylene Terephthlate |
| API | American Petroleum Institute |
| ARP | Poly (Arylterephthalate) Copolyester |
| AS | Antistatic |
| ASA | Poly (Acrylic Styrene Acrylonitrile) |
| ASTM | American Society for Testing and Materials |
| BDMA | Benzyl Dimethyl Amine (Epoxy Cure Accelerator) |
| BGE | Butyl Glycidyl Ether |
| BIIR | Bromobutyl Rubber |
| BMC | Bulk Molding Compound |
| BMI | Bismaleimide |
| BOPP | Biaxially Oriented Polypropylene (Film) |
| BR | Polybutadiene Rubber |
| CA | Cellulose Acetate |
| CAB | Cellulose Acetate Butyrate |
| CAP | Cellulose Acetate Propionate |
| CF | Cresol Formaldehyde |
| CFR | Code of Federal Regulations (21 CFR has provisions dealing with food contact of polymers) |
| CGE | Cresol Glycidyl Ether |
| CHDM | Cyclohexanedimethanol |
| CIIR | Chlorobutyl Rubber |
| CM | Chlorinated Polyethylene Rubber |
| CM | Compression Molded |
| CMC | Carboxymethyl Cellulose |
| CN | Cellulose Nitrate |
| CO | Epichlorohydrin Rubber (Homopolymer) |
| COF | Coefficient of Friction |
| CP | Cellulose Propionate |
| CPE | Chlorinated Polyethylene |
| CPVC | Chlorinated Polyvinyl Chloride |
| CR | Polychloroprene Rubber |
| CS | Casein |
| CSA | Canadian Standards Associates |
| CSM | Chlorosulfonated Polyethylene Rubber |
| CTE | Coefficient of Thermal Expansion |
| CTFE | Chlorortrifluoroethylene |
| CTI | Comparative Tracking Index |
| CVD | Chemical Vapor Deposition |
| DAM | Dry As Molded (often applied to nylon) |
| DAP | Diallyl Phthalate |
| DDS | Diaminodiphenyl Sulfone (Epoxy Cure Agent) |
| DGEBA | Diglycidyl Ether of Bisphenol A |
| DIN | Deutches Institut für Normung |
| DTUL | Deflection Temperature Under Load |
| EAA | Ethylene/Acrylic Acid Copolymer |
| EBAC | Poly(Ethylene Butyl Acrylate) |
| EC | Ethyl Cellulose |
| ECN | Epoxy Cresol Novolac |
| ECO | Epichlorohydrin Rubber (Ethylene Oxide Copolymer) |
| ECTFE | Poly (Ethylene Chlorotrifluoroethylene) |
| EEA | Poly (Ethylene-Ethyl Acrylate) |
| EEW | Epoxy Equivalent Weight (Also called WPE) |
| EMAAA | Ethylene Acid Terpolymer |
| EMAC | Poly (Ethylene Methyl Acrylate) |
| EMCM | Ethylene Methyl Acrylate Cyclohexene Methyl Acrylate |
| EMI | Electromagnetic Interference |
| EP | Epoxy; Epoxide |
| EPA | Environmental Protection Agency (US Government) |
| EPDM | Ethylene Propylene Terpolymer Rubber |
| EPM | Ethylene Propylene Copolymer |
| EPN | Epoxy Phenol Novolac |
| EPS | Expanded Polystyrene |
| ESCR | Environmental Stress Cracking Resistance |
| ETFE | Poly (Ethylene Tetrafluoroethylene) |
| ETPU | Engineering Thermoplastic Polyurethane |
| EVA | Ethylene Vinyl Acetate Copolymer |
| EVAC | Ethylene-Vinyl Acetate Copolymer |
| EVAL | Poly (Ethylene-Vinyl Alcohol) |
| EVOH | Poly (Ethylene Vinyl Alcohol) |
| FDA | Food and Drug Administration (US Government) |
| FEP | Fluorinated Ethylene Propylene |
| FF | Furan Formaldehyde |
| FMQ | Fluorosilicone Rubber |
| FPM | Fluorocarbon Rubber |
| FPVC | Flexible Polyvinyl Chloride |
| FR | Flame Retardant |
| FVMQ | Fluorosilicone Rubber |
| FZ | Fluorinated Polyphosphazene Rubber |
| GFR | Glass Fiber Reinforced |
| GP | General Purpose |
| GPO | Propylene Oxide Rubber |
| GPPS | General Purpose Polystyrene |
| HAI | High Amp Arc Ignition |
| HALS | Hindered Amine Light Stabilizer |
| HDPE | High Density Polyethylene |
| HDT | Heat Deflection Temperature or Heat Distortion Temperature |
| HFP | Hexafluoropropylene |
| HIPS | High Impact Polystyrene |
| HNBR | Hydrogenated Nitrile Rubber (Acrylonitrile-Butadiene Rubber) |
| HRE | Rockwell E Hardness Number |
| HRM | Rockwell M Hardness Number |
| HRR | Rockwell R Hardness Number |
| HVAR | High Voltage Arc Resistance to Ignition |
| HVTR | High Voltage Tracking Rate |
| HWI | Hot Wire Ignition |
| IBS | Interactive Blowing System |
| IIR | Butyl Rubber |
| IM | Injection Molded |
| IMR | Internal Mold Release |
| ISO | International Standards Organization |
| LCP | Liquid Crystal Polymer |
| LDPE | Low Density Polyethylene |
| LLDPE | Linear Low Density Polyethylene |
| LMDPE | Linear Medium Density Polyethylene |
| MD | Metal Deactivator |
| MDPE | Medium Density Polyethylene |
| MEKP | Methyl Ethyl Ketone Peroxide (Thermoset Curing Agent) |
| MF | Melamine-Formaldehyde |
| MFD | Microfloppy Diskettes |
| MFI | Melt Flow Index |
| MVTR | Moisture Vapor Transmission Rate |
| MWD | Molecular Weight Distribution |
| NASA | National Aeronautics and Space Administration (US) |
| NB | No Break (Applied to Impact Test Results) |
| NBR | Nitrile Rubber (Acrylonitrile-Butadiene Rubber) |
| NHFR | Non-Halogen Flame Retardant |
| NHT | High Temperature Nylon |
| NIOSH | National Institute for Occupational Safety and Health |
| NSF | National Sanitation Foundation (nonregulatory agency) |
| OB | Optical Brightener |
| ODP | Ozone Depletion Potential |
| OEM | Original Equipment Manufacturer |
| OPP | Oriented Polypropylene (Film) |
| OPS | Oriented Polystyrene (Film) |
| OSHA | Occupation Safety and Health Administration (US Government) |
| PA | Polyacrylate |
| PA | Polyamide (Nylon) |
| PAEK | Polyarylether |
| PAEK | Polyaryletherketone |
| PAI | Polyamide-Imide |
| PAMS | Poly (Alpha Methylstyrene) |
| PAN | Polyacrylonitrile |
| PARA | Polyarylamide (polyaramide) |
| PAS | Polyarylsulfone |
| PASA | Polyamide, Semi-Aromatic (Nylon) |
| PASU | Polyarylsulfone |
| PB | Polybutadiene |
| PB | Polybutene-1 |
| PBGA | Plastic Ball Grid Array |
| PBI | Polybenzimidazole |
| PBT | Polybutylene Terephthalate |
| PC | Polycarbonate |
| PCB | Printed Circuit Board |
| PCP | Post-Consumer Plastic |
| PCR | Post-Consumer Resin |
| PCT | Polycyclohexylenedimethylene Terephthalate |
| PCTFE | Polychlorortrifluoroethylene |
| PCTG | Glycol-Modified PCT |
| PCU | Polycarbonate Urethane |
| PDAP | Poly (Diallyl Phthalate) |
| PDSM | polydimethylsiloxane (Silicone) |
| PE | Polyethylene |
| PEBA | Polyether Block Amide |
| PEEK | Polyetheretherketone |
| PEF | Process Engineered Fuel |
| PEG | Polyethylene Glycol |
| PEI | Polyetherimide |
| PEK | Polyetherketone |
| PEKEKK | Polyetherketoneetherketoneketone |
| PEKK | Polyetherketoneketone |
| PEN | Polyethylene Naphthalate |
| PEO | Poly (Ethylene Oxide) |
| PEOX | Poly (Ethylene Oxide) |
| PES | Polyethersulfone |
| PESU | Polyethersulfone |
| PET | Polyethylene Terephthalate |
| PETG | PET Modified with CHDM |
| PEX | Cross-linked Polyethylene |
| PF | Phenol Formaldehyde (Phenolic) |
| PFA | Perfluoroalkoxy |
| PFPE | Polyperfluoropolyether |
| PI | Polyimide |
| PIB | Polyisobutylene |
| PIR | Polyisocyanurate Foam |
| PISU | Polyimidesulfone |
| PMMA | Polymethylmethacrylate |
| PMP | Polymethylpentene |
| PNR | Polynorborane Rubber |
| PO | Polyolefin |
| POB | Poly (p-Oxybenzoate) |
| POM | Polyoxymethylene (Acetal) |
| POP | Point of Purchase (Marketing Displays) |
| PP | Polypropylene |
| PPA | Polyphthalamide |
| PPE | Polyphenylene Ether |
| PPF | Phenol-Furfural |
| PPG | Polypropylene Glycol |
| PPO | Polyphenylene Oxide |
| PPOX | Polypropylene Oxide |
| PPS | Polyphenylene Sulfide |
| PPSU | Polyphenylsulfone |
| PRF | Plastics Recovery Facility |
| PS | Polystyrene |
| PSU | Polysulfone |
| PTFE | Polytetrafluoroethylene |
| PTMG | Polytetramethylene Glycol |
| PTT | Polytrimethylene Terephthalate |
| PU | Polyurethene |
| PUR | Polyurethene |
| PVAC | Poly (Vinyl Acetate) |
| PVAL | Poly (Vinyl Alcohol) |
| PVB | Poly (Vinyl Butyral) |
| PVC | Polyvinyl Chloride |
| PVCA | Poly (Vinyl Chloride-Acetate) |
| PVDC | Polyvinylidene Chloride |
| PVDF | Polyvinylidene Fluoride |
| PVFM | Poly (Vinyl Formal) |
| PVK | Polvinylcarbazole |
| PVOH | Polyvinyl Alcohol |
| PVP | Polyvinylpyrrolidone |
| PZ | Polyphosphazene Rubber |
| RH | Relative Humidity |
| RIM | Reaction Injection Molding |
| RPVC | Rigid Polyvinyl Chloride |
| RRIM | Reinforced Reaction Injection Molding |
| RTI | Relative Thermal Index (UL test) |
| RTPU | Rigid Thermoplastic Polyurethane |
| RTV | Room Temperature Vulcanizing (Silicone) |
| SAN | Poly (Styrene Acrylonitrile) |
| SB | Styrene-Butadiene |
| SBC | Styrene-Butadiene Copolymer |
| SBS | Poly (Styrene Butadiene Styrene) |
| SEBS | Poly (Styrene-Ethylene-Butadiene-Styrene) Elastomer |
| SI | Silicone |
| SI | System International (a subset of metric units) |
| SIS | Poly (Styrene-Isoprene-Styrene) Elastomer |
| SMA | Poly (Styrene Maleic Anhydride) |
| SMC | Sheet Molding Compound |
| SMMA | Styrene Methyl Methacrylate Copolymer |
| SMS | Styrene-a-Methylstyrene |
| SPE | Society of Plastics Engineers |
| SPI | Society of the Plastics Industry |
| SPS | Syndiotactic Polystyrene |
| SPU | Segmented Polyurethane |
| TAIC | Triallyl Isocyanurate |
| TEEE | Ether Ester Block Copolymer (Thermoplastic Elastomer) |
| TEEE | Thermoplastic Elastomer Ether Ester Block Copolymer |
| TEO | Olefinic Thermoplastic Elastomer |
| TES | Thermoplastic Styrenic Elastomer |
| TFE | Polytetrafluoroethylene |
| TM | Transfer Molded |
| TP | Thermoplastic |
| TPE | Thermoplastic Elastomer |
| TPI | Thermoplastic Polyimide |
| TPO | Thermoplastic Polyolefin (often applied to elastomers) |
| TPU | Thermoplastic Polyurethene (often applied to elastomers) |
| TPUR | Thermoplastic Polyurethene (often applied to elastomers) |
| TPV | Thermoplastic Vulcanizate |
| TS | Thermoset |
| TYS | Tensile Yield Strength |
| UF | Urea Formaldehyde |
| UHMW | Ultra High Molecular Weight (often applied to polyethylene) |
| UL | Underwriters Laboratory |
| ULDPE | Ultra Low Density Polyethylene |
| UP | Unsaturated Polyester (Thermoset) |
| USDA | United States Department of Agriculture |
| UTS | Ultimate Tensile Strength |
| UV | Ultraviolet |
| VCE | Poly (Vinyl Chloride-Ethylene) |
| VCEMA | Poly (Vinyl Chloride-Ethylene-Methyl Acrylate) |
| VCMA | Poly (Vinyl Chloride-Methyl Acrylate) |
| VCVAC | Poly (Vinyl Chloride-Vinyl Acrylate) |
| VCVDC | Poly (Vinyl Chloride-Vinylidene Chloride) |
| VHMW | Very High Molecular Weight (often applied to polyethylene) |
| WPE | Weight per Epoxide (also called EEW) |
| XLPE | Cross-linked Polyethylene |