I'd try some acetone on a clean white rag; careful, it's flammable. If that didn't work, make them come out and use a Quartz Renew kit please.

Thank you. I think I will call straight away. They are not even a week old.

Try some Tenax Quartz Toner after the acetone and before the Quartz Renew kit, please.

Hi, yes. We have the company coming tomorrow. I just wanted to see if my thoughts on this were valid. It is pretty hard to see if the lighting isn’t correct and since I haven’t had quartz before, I wanted to make sure it wasn’t me being too picky. We are getting the backsplash in tomorrow too so I have a bad feeling. So far I have had many of our concerns (for other things) brushed off as, “that’s just how it is”, or somehow it was our fault for not knowing. I thought we were hiring a kitchen company for their expertise because of our lack of it. I am worried we will be told that’s just how it comes.

I've found that baking soda and water (NOT vinegar) get out a lot of crap from my quartz. Acetone as well. But a good scrub with baking soda may do the trick.

Hi I just had spectrum idylic quartz put in . I noticed that my sample had a haze on it and thought it must be an old sample. The haze is all over the counter and I have washed with soap and water and nothing it is still there. You only see it in the light but since the kitchen is all windows it reflects off of the stone. I am using Metropolitan and Im worried they are going to try and say it is the stone I bought. I can't imagine a stone would have a haze over it. When we were picking stone at metropolitan the plastic wrap on the stone was stuck on it. They said they had never seen this before and it took a long while to get wrap off. They are coming out to look at it today but I would love to get some more info from anyone who has had this happen to them. He did say they never polish quartz, but they could clean it. The problem is, I have some samples and I have tried everything - baking soda, acetone, scrub pads etc. it is not budging.

@Pink Electra

Did you ever get this resolved ? My quartz was installed yesterday and I'm having the exact same issue. Everyone believes it's from the plastic covering. 

My fabricator is going to try and clean it off and I'm going to try some Acetone on it after using some on a scrap piece I had that it didn't harm. I'm praying that works and I don't have to hassle with manufacturer agreeing to fix it. 

I too am gutted. Months of planning and choosing your slab only to have this happen. It's so heartbreaking.

@Ashlie Brady

I hope they were able to fix yours? Sorry for the late reply. I know how hard it is to have it in and be disappointed right away and you are looking for answers asap. I know that's what I did!

Ours was fixed. They wiped it with something and the haze immediately was gone. Crazy since I really rubbed hard with no results prior. So I'm glad I called them back in. They said that it definitely happens sometimes. It's great now. I'm not exactly sure what it was, acetone or some kind of denatured alcohol. He didn't really want us to know because he said that we should not use it ourselves on the countertop because it could damage it if left on or used too much.