Paraloid B-72 By-the-gram For Autunite or Fossil Preservation


Paraloid B-72, Sold By-The-Gram


Availability: 10 in stock (can be backordered)

Paraloid B72 By for Autunite / Fossil preservation

Reversible-Can be removed

Paraloid B-72 is a type of acrylic resin that is commonly used in the preservation and conservation of cultural heritage objects. It can be used to protect autunite, which is a type of mineral that is known to deteriorate over time due to exposure to light, heat, and dry air. B-72 will provide structural support but may not prevent dehydration.

Here are the suggested steps for using Paraloid B-72 to stabilize autunite:

  1. Clean the surface of the autunite using a soft brush or cloth to remove any dust or dirt.
  2. Document the weight of the specimen to be stabilized.
  3. Dissolve Paraloid B-72 in a suitable solvent, such as acetone or 100% ethanol, to create a solution with a concentration of around  5%. This can be done by adding 5 grams of B-72 to 95 grams of solvent and stirring until it is fully dissolved.
  4. Apply the Paraloid B-72 solution to the surface of the autunite. It can be done using a dropper, or the specimen can be dipped into the solution.
  5. Immediately after the B-72 application, use light puffs of canned air to blow away any excess solution and prevent pooling.
  6. Allow the Paraloid B-72 to dry completely, which can take several hours depending on the environment.
  7. Any remaining white or shiny residual B-72 can be removed with a quick rinse of solvent followed by air.
  8. Monitor the weight of the specimen, If the specimen has lost weight, it will need to be rehydrated to replace the water displaced by the solvent.


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