Thank you in advance for any help you can give me.  I have refinished my share of travertine floor tiles and most of them I refinish to a high shine with resin diamonds, diamond-encrusted pads, polishing compound and stone care central's penetrating sealer.  I do the process correctly and the majority of the tiles look great, but there are several that look awful from a side view due to the imperfections or micro holes in the tiles.  I want to know if anyone has tried a sealer like bulletproof from Dupont that has some micro adhesion properties and might mask the tiles that do not look nice?  Are there any other sealers that can help with my problem.