No. For all natural stone, use stone impregnator, not sealer. Most people confuse between them. Also good solvent based impregnator will last long time (much better than some water based product). I have given some suggestions a while back (regarding this matter), you can search.
【在 y********e 的大作中提到】 : 有人说每年都要seal
g*9
19 楼
Granite is much more abundant than marble and widely distributed throughout the entire earth. That is why granite is the cheapest natural stone you can buy (also the reason why builder use it in all the house because the cost) Granite and marble are complete different kind of product. Granite is igneous rock, marble is metamorphic rock. Marble is much more pretty than granite as far as the counter top is concerned.
【在 a******e 的大作中提到】 : seems most new homes use granite as standard now. what's the difference : between them?