"Spurr" Low Viscosity Kits

  • Price Includes a $7.00 Hazardous Handling Fee

  • ERL 4221 has replaced ERL 4206. ERL 4221 has a higher viscosity than the previously used ERL 4206.

    Spurr AR, 1969. A low-viscosity epoxy resin embedding medium for electron microscopy. J Ultrastruc Res, 26, p. 31.

    Ellis, E Ann, Solutions to the Problem of Substitution of ERL 4221 for Vinyl Cyclohexene Dioxide in Spurr Low Viscosity Embedding Formulations, Microscopy Today, V 14, No 4, July 2006

    The Spurr Kit gives excellent penetration for tough materials particularly in the studies of botanical, mineral and other hard biological specimens. When the mixture is kept at room temperature for 24 hours its viscosity will increase to 140cP, as is the case with other resins. When fully formulated, the Spurr’s resin will store in a deep-freeze for two months and at room temperature for two days. Curing is done at 70ºC for about 8 hours (see our Microwave system for significant time saving during epoxy processing).

    PELCO® Technical Notes for Low Viscosity Kit (PDF 1.54MB)

    18300-4221 Low Viscosity "Spurr" Kit
    Cg - ERL 4221 (replaces ERL 4206), 225ml SDS (95KB PDF)
    I - DER® 736, 250g SDS (104KB PDF)
    I - NSA, 450g SDS (100KB PDF)
    C - DMAE, 25g SDS (100KB PDF)


    Cg Suspected Carcinogen
    C Corrosive
    F Flammable
    I Irritant
    L Lachrymator
    O Oxidizing
    R Radioactive
    S Sensitizer
    T Toxic
    U Unlisted as hazard; unknown hazard if any