Quoted from RobT:I recommend getting the 32 oz concentrate and mixing with distilled water (you will have to put it in your own spray bottle):
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Water and wood don’t mix well. Ok, if your clearcoated, the water will never come in contact with the wood. But some older playfields, or even newer ones with wear or chips in the playfield might expose the wood to water. Why chance it? I keep water away from my pins at all cost. And for similar reasons, I never use glass cleaner with ammonia because of it’s affect on plastics. I mean, if you only get it on the glass it’s fine, but why risk overspray or spillage onto a plastic.