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I have some older molds that I have used Slide on as a mold release. Do I need to sandblast them before I apply MR97, or can I put MR97 over the Slide? Anyone know?

My SWAG is that you can use it directly over the Slide. I would just brush off what I can of the slide and apply the MR-97.

I think you will like the MR-97 much better (I do).

Dana W.

Thanks. I've used MR97 for a while and like it much better then Slide, but haven't used it on these older molds, or over Slide before. Appreciate the info!

Brush mr97 out after using and lightly mist.....and yes over slide.