L.R. Gold Embedding Media

L.R. Gold is a specialized material designed for cold processing of unfixed or lightly fixed tissue. The product enables the researcher to study fixation sensitive and temperature labile antigens and enzymes in resin sections using light and electron microscopy. London Resin recommneds the use of Poly(N-vinylpyrrolidone) as a tissue protectant and either Benzil or Benzoin methyl ether as a catalyst depending on the method of polymerization selected by the researcher.

L.R. White and L.R. Gold, are made in London, England, and are available to you from fresh stock held at Polyscience’s warehouses in Pennsylvania and Germany. LR resins are a blend of hydrophilic monomers which exhibit low viscosity for rapid and thorough penetration. Sections may be cut at 1-5µ or ultra thin for EM work. Stable for 1 year when stored at 4° C, these very low viscosity (8cps) embedding media rapidly penetrate tissue due to their hydrophilic nature.