A Black Quartz Double Bowl Sink Built for Seamless Laminate and Solid Surface Installations
The Karran Q-350 is a double bowl quartz composite undermount kitchen sink engineered for seamless installation in laminate and solid surface countertops. Its equal-bowl layout and deep 8-1/2 inch basin make it a practical workhorse for busy kitchens where washing and rinsing happen at the same time.
Key Features
• Seamless undermount installation bonds the sink flush with laminate and solid surface countertops, leaving no exposed seam or protruding rim.
• 80% natural quartz, 20% acrylic resin construction delivers high resistance to scratches, stains, chips, and heat in daily kitchen use.
• Equal double bowl configuration supports a dedicated wash side and rinse side without sacrificing basin size on either.
• Matte Black finish is factory-applied to the quartz composite body, not a coating that can chip or flake off the surface.
• No faucet deck keeps the bowl rim clean and continuous; the faucet and any accessories mount through the countertop behind the sink.
Where the Q-350 Earns Its Place
The Q-350's defining capability is seamless installation using the bevel-bit method. Where a conventional undermount sink leaves a visible joint at the countertop edge, the Q Series rim finishes flush so the laminate or solid surface flows directly into the bowl. That makes this sink the right call whenever a fabricator is building a laminate or solid surface top and wants a sink that disappears into the surface rather than interrupting it. It is equally well suited to kitchen remodels where the countertop is staying but the sink is being replaced, as long as the countertop material and existing cutout are compatible with the Q Series installation method.
The equal bowl split means neither side is compromised. Both basins are the same size, so large pots and sheet pans move from one side to the other without a size mismatch getting in the way. For households that hand-wash dishes, the layout keeps wash water and rinse water separated and both bowls usable at full depth.
Quartz Composite and the Black Finish
The bowl material is 80% natural quartz crystals bound in 20% high-performance acrylic resin. That ratio gives the sink the hardness and scratch resistance associated with stone without the brittleness of a pure mineral body. Stain resistance comes from the non-porous surface, which does not absorb liquids or harbor bacteria the way a porous material can. Heat resistance is high, though placing a pot directly from an open flame onto any composite surface is not recommended practice.
The Black color runs through the composite material, not over it. Everyday use, cleaning, and minor abrasion will not expose a different color beneath because there is no separate coating to wear through. The matte surface does not show water spots as readily as a high-gloss finish, which is a practical advantage in a kitchen that sees heavy daily use.
The Right Buyer for This Sink
Cabinet shops and countertop fabricators working with laminate or solid surface tops will find the Q-350 a natural pairing with their existing workflow. The seamless installation technique is consistent with the same bevel-bit and seam-adhesive process used across the Q Series, so there is no new learning curve for a shop already familiar with it. Homeowners specifying a kitchen renovation who want a bold, contemporary look in a deeply functional double bowl layout will find the Black finish distinctive without being difficult to coordinate. Designers working on modern kitchens where hardware and fixtures lean dark will appreciate that the matte black surface holds its look without constant upkeep.
Note that template and mounting clips are not included with the Q-350 and are purchased separately. The faucet, drain, and any basket strainers are also separate purchases.
Frequently Asked Questions
Can the Q-350 be installed in a granite or quartz stone countertop?
The Q Series seamless installation is documented for laminate and solid surface countertops. For granite and quartz stone tops, consider the Karran QU series, which is designed for standard undermount installation in those materials.
Does the sink come with a template or mounting clips?
No. Karran Q Series spec sheets state that neither a template nor mounting clips are included. Both are ordered separately, and a DXF file is available for CNC cutouts.
Where does the faucet mount on this sink?
The Q-350 has no faucet deck. The faucet, soap dispenser, and any other accessories mount through holes drilled in the countertop behind the sink bowl.
Will the Black finish show scratches over time?
The Black color is integral to the quartz composite material rather than a surface coating, so the color remains consistent even with everyday wear. Light surface marks can occur on any sink material, but they are far less visible on a matte black composite than on a high-gloss or metallic finish.
What drain size does the Q-350 use?
Standard kitchen quartz composite sinks in this series use a 3-1/2 inch drain opening. Confirm the exact size against the Karran spec sheet before ordering drain components.
A Sink That Works as Hard as the Kitchen Around It
The Q-350 brings together a seamless installation profile, a durable through-color quartz composite body, and an equal double bowl layout in a finish that stands out in a modern kitchen without demanding extra care to keep it looking that way.
