That looks like the fabricators glue line. It should not be visible on engineered quartz. Integra adhesives makes a color for every product out there see http://www.integra-adhesives.com/colour-charts/ . Get the stone name, match the Integra product from their color chart,(i work with a few fabricators and they will share if they have what I need) When you get the resin test it for a match and try razor the existing glue out and refill with correct color. sand with sand paper to finish.
Stephen

On 10/27/2015 4:58 PM, Justin wrote:

Just went and looked at a new install for a Quartz island. It has a line down the edging and its faint in some areas and more distinct in others. The installer told her that is normal for Quartz. I included some pics hopefully you can see it. I haven't had a lot of experience with this type of counter is this normal or is it sh$t grade of Quartz. If you can fix it and what process anyone uses
Thanks 
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Justin Cameron
JMC Stone and Tile Care
Justin@JMCStoneandTileCare.com
951-972-6997

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