i have been trying loads of different sealers on polished porcelain to establish which one is best here are the results i have had so far
1. fila mp90 i found this sealed the tiles well with out leaving loads of sealer on the surface that had to be buffed off finish looked great no cloudiness rating 8.5 out of 10
2 lithifin fz good sealing but didnt dry into the
tile well and had to be buffed off after 20minutes finished looks good but needed elbow grease rating 7 out 10
3. sealguard
tile and grout sealer rating 4 out of 10 evaporates as soon as you have got the lid off didnt really impregnate the porcelain needs several coats very expensive
4 ltp polished
tile and marble sealer rating 3 out of 10 leaves a film on the
tile, tiles looked cloudy after grouting needed to remove with thinners and reseal with mp 90
going to try the hg impregntor on the next polished porcelain job these are my opinions after using these sealers on my work hope this helps