Removing B72

[Desrosiers1718]

What is the best way to remove layers of b72 from a fossil bone, I know acetone works but is in best to apply with a brush, or can you pour or dip the fossil in the acetone?   

[Ptychodus04]

Was your bone relatively stable before application of the Paraloid? And was it broken and glued? What is the reason for removing the Paraloid? 
 

Answers to these questions will allow a useful reply. The original condition of the bone and your purpose for removing will define the appropriate way to proceed.

 

 

[hadrosauridae]

Are you trying to remove all of it, or just a surface build-up?

[Desrosiers1718]

The bone is stable in a rock matrix,  I have been applying b72 on the bone before and after soaking it in vinegar to remove the sandstone matrix,   Eventually I want to remove some of the b72 buildup.  

[Ptychodus04]

On 7/18/2023 at 1:44 PM, Desrosiers1718 said:

The bone is stable in a rock matrix,  I have been applying b72 on the bone before and after soaking it in vinegar to remove the sandstone matrix,   Eventually I want to remove some of the b72 buildup.  

You can remove via surface application of acetone applied with a lint free cotton cloth. You can also soak the bone in acetone to remove it but there’s a chance that the Paraloid is holding g microscopic cracks together. Soaking will elimirthis bond as well, potentially destabilizing the specimen.

[Desrosiers1718]

Ok thank you