R |
| RCPP retortable cast polypropylene |
| RHDPE recycled high density polyethylene |
| RIM reaction injection molding |
| RPET recycled polyethylene terephthalate |
| RTD resistance temperature detector |
| RTM resin transfer molding |
| RTV room temperature vulcanizing |
 |
S |
| SAN styrene acrylonitrile copolymer |
| SAP super absorbant polymer |
| SB styrene butadiene copolymer |
| SBC styrene block copolymer |
| SBR styrene butadiene rubber |
| SI silicone plastic |
| SMA styrene maleic anhydride |
| SMC sheet molding compound |
| SMC-C SMC-continuous fibers |
| SMC-D SMC-directionally oriented |
| SMC-R SMC-randomly oriented |