There is this from the Hi-Temp website: HT-78 Poly Plate [is] A simple, easy on, easy off, wipe down sealant and detailer's spray. Produces a rich, deep, luxurious shine on glass, chrome, and paint.
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I therefore do not believe it will remove any sealants on the vehicle. It leaves behind some protection which should make the sealant that was applied to last longer.
I have been using this product for a couple of years. I do not believe it will remove anything except wax swirls just like a detailing spray will.
While I frequently find Top of the Line's suggestions helpful, I disagree with their warning that Poly Plate will remove wax or sealant. If I remember correctly, several years ago, I brought this to Hi-Temp's attention and they said they would discuss this with TOTL. If they did talk with TOTL, they were unsuccessful in changing their mind.