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.
Here are the suggested steps for using Paraloid B-72 to stabilize autunite:
- Clean the surface of the autunite using a soft brush or cloth to remove any dust or dirt.
- Document the weight of the specimen to be stabilized.
- Dissolve Paraloid B-72 in a suitable solvent, such as acetone or 100% ethanol, to create a solution with a concentration of around 10% This can be done by adding 10 grams of B-72 to r to 90 grams of solvent and stirring until it is fully dissolved.
- Apply the Paraloid B-72 solution to the surface of the autunite using a brush or dropper. Make sure to apply a thin, even layer and avoid creating any drips or pooling of the solution.
- Allow the Paraloid B-72 to dry completely, which can take several hours depending on the temperature and humidity of the environment. It will end up weighing up to a few hundred milligrams heavier than the pre-treatment weight.
- Repeat steps 3 and 4 as necessary to achieve the desired level of protection.
- Any remaining white or shiny residual B-72 can be removed with a quick rinse of solvent.
- Continue to monitor the weight of the specimen for dehydration as further treatments may be necessary.
It’s important to note that the use of Paraloid B-72 should only be undertaken by professionals with proper training and experience in the conservation and preservation of cultural heritage objects. Additionally, the specific method of using Paraloid B-72 to preserve autunite may vary depending on the condition of the object and the desired level of protection.
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