IF you open up your TV, cd player or color printer you will see RA / RMA flux ON EVERYTHING!
The waxy binder protects the halogenated compounds from becoming active with atmospheric moisture. Self healing is a good way to look at it.
However, OA is etremely agressive and will require washing within a short time period (4-8 hrs typical). Wait any longer and you start etching the copper / plating right off the board.
I would go directly to OA if you have an established DI wash process. RMA can be more difficult to remove in the wash process.
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