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Polysulfide Rubbers (OT / EOT)

Based on 12 products - Last update on the Jun 26, 2025

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Thioplast® G22

by Nouryon

Thioplast® G22 by Nouryon is a medium-high viscosity liquid polysulfide polymer with reactive thiol-end groups. It is produced in aqueous dispersion by polycondensation of bis-(2-chloro-ethyl)-formal with alkali polysulphide. Soluble in benzene, toluene, dichloroethane, chloroform & plasticizers such as phthalates and chlorinated paraffins. It is partially soluble in aliphatic esters and ketones. It is insoluble in water, aliphatic hydrocarbons and alcohols. It is formulated as one or two component systems containing part A, the thioplast polymer and part B, the curing agent. Designed for use as a rubber modifier and in molding compounds. Thioplast® G22 is recommended for construction applications.
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FMC® 205

by Smooth-On

FMC® 205 by Smooth-On is a polysulfide rubber mold compound. Exhibits durability and cures overnight with negligible shrinkage. It is not sensitive to moisture and can be poured directly over wet plaster or water/ sulfur based clays. FMC® 205 has a mix ratio of 100A:12B by weight. Common applications include molds for foundry & pattern work, sculpture (lost wax process), casting various gypsum products and waxes.
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FMC® 201

by Smooth-On

FMC® 201 by Smooth-On is a polysulfide rubber mold compound. Exhibits durability, good tear strength and cures overnight with negligible shrinkage to a soft Shore A15 rubber that stretches. It is not sensitive to moisture and can be poured directly over wet plaster or water/ sulfur based clays. FMC® 201 has a mix ratio of 100A:12B by weight. Common applications include molds for foundry & pattern work, sculpture (lost wax process), casting various gypsum products and waxes.
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Polysulfide Rubbers (OT / EOT)