and if so, can I just put the tile on top of the sanded laminate counter top?
You can, but it is not recommended. Your tile cuts would need to be almost perfect in order to not look bad. Then you need to silicone caulk around the sink to prevent water damage to the original counter top.
Yes you can tile over laminate but remember that the base is what is holding the tile down and just caulk around the sink.
You can do this any way you want but the proper way is to remove the sink this is not hard at all. The laminate will be easy to pry off it's just glued and if it has some age to it you can pry it very easily. If you really want the job to look great you should always do it right the first time. You will be proud of the job you did in the end. If your wash basin is held down with retainer clips don't worry you wont need them when you put it back just use some silicone caulk under the lip of the basin when you put it back in place. If you have more questions I will be glad to help just e-mail me with pics and questions.
Yes you can, but it will be easier and you will get a better result if you take the sink out, tile then put the sink back. As it is possible you will get a bit of flexing in the counter top so don't use ordinary tile adhesive. Use a good quality flexible tile adhesive or high strength construction adhesive so the tiles don't pop off if the counter flexes a bit. Leave the adhesive to set at least 24 hours before you put the sink back.
My main concern would be waterproofing. I can't foresee an effective way to waterproof sanded laminate? Also, waterproofing around the bowl. This will be very difficult as it requires cut tiles. Same way a bath hob is tiled, i guess, but with laminate instead of brick (may cause problems) My tip is plenty of silicone around the bowl/Tiles. And good luck with the laminate not bowing from damp. ** Speak to a tradie (tiler or builder preferably) about potentially removing the laminate and replacing with something like MDF? or even boxing out with Timber Gyprock? you got me stumped. haha. ****** You CAN pry off the laminate, however there will be nothing under it. things to think about: Distance between top of bench and rim of existing sink. Once you glue tile grout, will it finish higher than the lip/rim of the sink ? Having someone experienced to cut the tiles. They'll stick out like dog balls if they're wrong! Silicone. Silicone. Silicone! Like someone here said, silicone around the bowl, no water can get through to the laminate. Maybe there is a sealant you can use on the laminate prior to tiling? Ask around. Call builders. Squeaky wheel!
