Given your detailing hobby, it makes sense that you're asking this question. However, you may be overthinking it. But first, a question:
You're referring to a "matte BoB frame." Are you buying a Pinarello Dogma? If not, what frame is it? And if so, what the heck does "BoB" mean in Pinarello-speak? I can't find it defined anywhere.
Bicycle paint doesn't need to be sealed or protected beyond the stock clearcoat (whether matte or glossy). The paint isn't porous; even if it were, the clearcoat would seal the pores.
While bicycle paints are similar or identical to automotive paints (DuPont Imron used to be very popular), they're not subject to the environmental extremes that cars deal with. Bicycles are typically exposed to much less sun, much less salt and much less water than the average car. In other words, bicycle paint is put under many fewer demands than automotive paint. There are exceptions, but most high-end bikes are ridden under conditions only slightly worse than a "garage queen" car. You could try to "seal" your matte finish, but you'd be wasting your time. It's not porous and there's nothing to seal it against.
Carbon frames are (in theory) susceptible to UV damage, but this is well known and understood by manufacturers; it's not an issue in practice. Because quality carbon frames are sold with a UV-blocking clearcoat, frames with UV damage are as rare as hen's teeth. I'm not saying they don't exist, but I've certainly never seen one. Bikes that live on team car roofs for hundreds of days a year might conceivably have an issue, but in that case, the frame is only used for a year at most.
Contrary to what the previous poster wrote, matte bicycle finishes are not any more porous than glossy ones. Some early automotive matte paints were porous, and some may still be. But many matte bikes are painted with glossy paint and finished with a matte clearcoat. To the best of my knowledge, even the ones that are painted with matte paint are finished with a matte clearcoat.
This site has decent information: http://kanebikes.com/2013/04/matte-vs-glossy-finish/
Kane offers to "turn your glossy frame into a matte one." While that can be done several ways, I'd be willing to bet that Kane's process includes a matte clearcoat.
Applying your detailing hobby to your cycling hobby sounds like harmless fun to me, but since you've never dealt with matte paint/clearcoat before, you should be aware that anything you apply on top of your frame's matte clearcoat could change its appearance. I use Pedro's Bike Lust (a silicone fluid) on my glossy bikes and a wet cloth on my matte ones. Sometimes I'll use rubbing alcohol on either to remove a bug splat, for instance. But anything beyond that is unnecessary, IMHO.