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General Mechanics adds eleven polymer plastic types modeled after real-world materials. Each plastic type exists in three forms and can be dyed in any of the 16 Minecraft dye colors.

Plastic Forms

For each plastic type, three distinct forms are registered:
FormDescription
Plastic ItemThe base plastic material; used as a crafting ingredient
Plastic BlockA solid block form; used in building and decoration
Machine Frame BlockStructural component used to construct machine bodies
All plastic items and plastic blocks are available in 16 dye colors (matching all standard Minecraft DyeColor values). Colored variants appear in the creative inventory and can be found in the General Mechanics creative tab.

Plastic Types

NameAbbreviationFormulaCommon Real-World Uses
PolyethylenePEC₂H₄Packaging, bottles, bags, pipes
PolypropylenePPC₃H₆Containers, automotive parts, textiles
PolystyrenePSC₈H₈Foam insulation, disposable cups, casings
Polyvinyl ChloridePVCC₂H₃ClPipes, cables, flooring, window frames
Polyethylene TerephthalatePETC₁₀H₈O₄Drink bottles, food packaging, fibers
Acrylonitrile Butadiene StyreneABSC₈H₈·C₄H₆·C₃H₃NLEGO bricks, electronics housings, automotive trim
PolycarbonatePCC₁₆H₁₄O₃Eyeglass lenses, CDs, bulletproof glass
NylonPAC₆H₁₁NOGears, bearings, fabrics, zip ties
PolyurethanePUC₃H₈N₂OFoam, adhesives, coatings, sealants
PolytetrafluoroethylenePTFEC₂F₄Non-stick coatings (Teflon), seals, gaskets
PolyetheretherketonePEEKC₁₉H₁₂O₃Aerospace parts, medical implants, high-performance bearings

Machine Frame Blocks

Each plastic type has a corresponding Machine Frame block variant. Machine frames are the structural outer casing used when constructing multiblock machines.
Block NamePlastic Type
Polyethylene Machine FramePE
Polypropylene Machine FramePP
Polystyrene Machine FramePS
Polyvinyl Chloride Machine FramePVC
Polyethylene Terephthalate Machine FramePET
Acrylonitrile Butadiene Styrene Machine FrameABS
Polycarbonate Machine FramePC
Nylon Machine FramePA
Polyurethane Machine FramePU
Polytetrafluoroethylene Machine FramePTFE
Polyetheretherketone Machine FramePEEK
Different machine frame types may be required for different machine tiers or heat tolerances. Refer to individual machine pages for the required frame material.

Colored Variants

Every plastic item and plastic block is available in all 16 dye colors: White, Orange, Magenta, Light Blue, Yellow, Lime, Pink, Gray, Light Gray, Cyan, Purple, Blue, Brown, Green, Red, Black Colored variants are registered automatically for all plastic types and are accessible from the General Mechanics creative tab.

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