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[Rohm & Haas] A trademark for a series of aqueous acrylic dispersions sold in Europe that are equivalent to the Rhoplex series in the US. First introduced in 1953, Primal was originally sold for used as an acrylic emulsion paint binder and later as a waterproof leather coating. Primal resins are available in several grades that vary in hardness and flexibility. They are used for adhesives, consolidants, and coatings. The acrylic emulsions are environmentally friendly, non-toxic, non-flammable, easy to clean up with water, colorfast, and resistant to cracking and yellowing.

Synonyms and Related Terms

Primal AC-33

Resources and Citations

  • Rohm & Haas: [1] (Note: no longer current as Dow purchase Rohm and Haas in 2009)
  • C.V.Horie Materials for Conservation, Architectural Press division of Butterworth-Heinemann, Oxford, 1997, p.110-112.
  • R.G. Lodge, A History of Synthetic Painting Media with Special Reference to Commercial Products, AIC Preprints, 16th Annual Meeting, 1988