Karran QU-712-BL 32" Quartz Kitchen Sink in Black | Undermount Installation | Scratch Resistant | 25-Year Warranty
Color: Black
Product Details
Why the Undermount Sink in Black Delivers Bold Sophistication for Today's Design-Forward Kitchens
The Karran QU-712 in Black creates a striking focal point that anchors your kitchen's design with professional-grade performance and contemporary elegance. This 32" undermount sink eliminates the visual interruption of raised edges while delivering the deep, rich black finish that defines today's most sophisticated kitchen spaces.
Built for homeowners who refuse to compromise between style and substance, this quartz composite sink handles the demands of active cooking while maintaining its dramatic appearance. The matte Black finish provides superior scratch concealment compared to lighter colors, making it the ideal choice for busy kitchens where function meets fashion.
How Superior Quartz Construction Makes Black Sinks Virtually Indestructible
Exceptional Scratch and Impact Resistance
- 80% natural quartz crystals create a Mohs hardness rating of 7, harder than granite and steel knives
- Black finish naturally conceals minor scratches and wear marks that would show prominently on lighter surfaces
- Dense quartz composite construction resists chips and impact damage from heavy cookware
Professional-Grade Heat Protection
- Withstands temperatures up to 535°F without damage or discoloration to the Black finish
- Thermal shock resistance prevents cracking from rapid temperature changes during cooking tasks
- Natural quartz maintains structural integrity under extreme heat conditions
Superior Stain and Bacteria Resistance
- Non-porous surface prevents bacteria growth up to 98%, maintaining sanitary conditions
- Food residue, grease, and organic matter cannot penetrate the sealed Black surface
- Eliminates odor retention and discoloration that affects porous natural stone materials
Advanced Sound Dampening Technology
- Quartz material absorbs vibration, reducing dish-washing noise by up to 70% compared to stainless steel
- Dense composite construction creates a quieter kitchen environment during meal preparation
- Minimizes sound transmission through countertops and cabinetry
Optimal Single Bowl Configuration
- 30" x 16¾" x 9" internal dimensions accommodate commercial-size cookware and baking sheets
- Deep 9" bowl depth handles oversized pots without water splashing onto countertops
- Rear drain placement maximizes usable workspace while creating additional cabinet storage below
Your Comprehensive 25-Year Quality Assurance
Karran stands behind the Undermount Sink in Black with an industry-leading 25-year limited warranty that covers both material performance and color consistency under normal residential use. This protection begins automatically upon installation without requiring warranty registration or annual maintenance contracts.
Complete Performance Coverage:
- Structural integrity of the 80% quartz composite material
- Color consistency and fade resistance in the Black finish
- Non-porous surface performance and bacterial resistance
- Heat resistance up to 535°F rating
- Manufacturing defects in drain assembly and mounting hardware
- Expedited processing for warranty claims within 5 business days
- Full warranty coverage transfers to new homeowners with proper documentation
Questions About the Undermount Sink in Black?
Q: Does the Black finish show water spots like stainless steel sinks?
A: No. The matte Black finish naturally conceals water spots, mineral deposits, and soap residue that appear prominently on polished stainless steel surfaces. Daily water marks blend with the finish, significantly reducing visible maintenance needs.
Q: How does scratch resistance compare between black quartz and stainless steel?
A: Black quartz provides superior scratch resistance with a Mohs hardness rating of 7 compared to stainless steel's 5.5-7 rating. More importantly, any minor scratches that do occur are virtually invisible against the black surface, unlike stainless steel where every mark shows prominently.
Q: Can I use bleach or harsh chemicals on the Black finish?
A: Yes, but with limitations. Dilute household bleach with 15 parts water and limit contact to 1 hour maximum. Avoid undiluted bleach, ammonia-based cleaners, and abrasive chemicals that can damage the surface.
Q: Will the black color fade or change over time?
A: No. The Black pigment is integrated throughout the material during manufacturing, not applied as a surface coating. UV-stabilized resins prevent color degradation, ensuring consistent appearance for decades.
Q: How does maintenance compare to white or light-colored sinks?
A: Black sinks require less frequent cleaning because water spots, soap scum, and minor stains blend naturally with the dark surface. Light-colored sinks require daily attention to maintain their appearance, while black sinks look clean longer between deep cleanings.
Q: Is the Undermount Sink in Black compatible with garbage disposals?
A: Yes. The 3½" drain opening accommodates most standard garbage disposal units. The rear drain placement provides additional clearance for disposal installation and maintenance access.
Color Options
QU-712 Concrete | QU-712 Bisque | QU-712 Brown | QU-712 Gray | QU-712 White
Bottom Protection Grids
GR-6009 Stainless Steel Bottom Grid
Drain Components
Installation
Professional Undermount Clip Set | Bisque Seaming Adhesive | Black Seaming Adhesive | Brown Seaming Adhesive | White Seaming Adhesive
Maintenance Products
See the Undermount Sink in Black Dominate Performance Testing
Comparative Durability Analysis:
Laboratory testing demonstrates the Undermount Sink in Black's superior performance across critical categories:
Performance Metric | Undermount Sink in Black Quartz | Stainless Steel | Ceramic/Porcelain |
---|---|---|---|
Scratch Resistance | Excellent (Mohs 7) | Good (Mohs 5.5-7) | Poor (Mohs 3-4) |
Heat Tolerance | 535°F | 400°F | 300°F |
Stain Visibility | Minimal | High | Moderate |
Noise Reduction | 70% quieter | Baseline | 30% quieter |
Bacteria Prevention | 98% effective | 85% effective | 60% effective |
Maintenance Frequency | Weekly | Daily | Daily |
Industry Certifications:
- IAPMO Listed for Uniform Plumbing Code compliance nationwide
- NSF/ANSI 61 certified for safe drinking water contact
- ISO 9001:2015 quality management system certification
- Made in USA with domestic and international premium materials
- 25-year manufacturer warranty exceeds industry standards
The Undermount Sink in Black incorporates Karran's exclusive vibration-dampening technology that reduces kitchen noise pollution by up to 70% compared to traditional stainless steel installations. This engineering advancement utilizes the natural density of quartz crystals to absorb sound waves from running water, dish contact, and food preparation activities.
What Customers Say About Their Karran Undermount Sink Experience
"Installed the Black QU-712 eight months ago and it's been incredible. The contrast against our white quartz countertops is stunning, and maintenance is so much easier than our old stainless steel sink. Water spots just disappear." David R
"As someone who cooks every day, I needed something that could handle serious use. The black quartz has exceeded expectations - it's quiet, scratch-resistant, and the single bowl design fits my largest pots perfectly." Maria L
"Three kids and constant cooking, but this sink still looks brand new after 14 months. The black finish hides everything that used to drive me crazy with our white ceramic sink. Worth every penny." Thomas K
Industry Recognition and Professional Endorsements:
- Kitchen & Bath Design News "Editor's Choice" for scratch-resistant surfaces 2024
- National Kitchen & Bath Association recommended product for contemporary designs
- Professional Builder Magazine "Top Specified" composite sink for luxury installations
- 4.8/5 star average rating from certified kitchen designers nationwide
Verified Performance Data:
- 97% customer satisfaction rating based on 18-month follow-up surveys
- Less than 1.2% warranty claim rate across all Black finish installations
- Average product lifespan exceeds 23 years with standard maintenance protocols
- 93% of customers would recommend to friends and colleagues
Undermount Sink with Uncompromising Performance
The Karran Undermount Sink in Black quartz undermount sink delivers uncompromising performance through its superior 80% quartz construction, 535°F heat resistance, and 25-year warranty protection. The sophisticated Black finish provides exceptional scratch concealment and water spot resistance while creating a dramatic focal point for contemporary kitchen designs.
Key performance advantages include 70% noise reduction compared to stainless steel, 98% bacteria prevention through non-porous surface technology, and superior scratch resistance with a Mohs hardness rating of 7. The generous 30" x 16¾" x 9" single bowl configuration accommodates commercial-size cookware while the rear drain design maximizes both workspace and cabinet storage below.
The matte Black finish represents a significant maintenance advantage over lighter-colored alternatives, naturally concealing water spots, soap residue, and minor wear marks that require daily attention on white or stainless steel surfaces. This practical benefit, combined with the sink's professional-grade durability, makes it an exceptional choice for active kitchens.
Please be advised that product(s) you’re purchasing may have State of California Prop 65 warnings associated. For more information, go to www.P65Warnings.ca.gov
Specifications
Box Quantity | 1 |
Product Type | |
Bowl Size | 30" x 15-3/4" x 9" |
Color | Black |
Depth | 9" |
Gauge | |
Left Bowl Size | |
Length | 32-1/2" |
Material | Quartz |
Mounting Type | Under Mount |
Purpose | Kitchen Sink |
Style | Extra Large Single Bowl |
Right Bowl Size | |
Width | 19-1/2" |







Product Details
Why the Undermount Sink in Black Delivers Bold Sophistication for Today's Design-Forward Kitchens
The Karran QU-712 in Black creates a striking focal point that anchors your kitchen's design with professional-grade performance and contemporary elegance. This 32" undermount sink eliminates the visual interruption of raised edges while delivering the deep, rich black finish that defines today's most sophisticated kitchen spaces.
Built for homeowners who refuse to compromise between style and substance, this quartz composite sink handles the demands of active cooking while maintaining its dramatic appearance. The matte Black finish provides superior scratch concealment compared to lighter colors, making it the ideal choice for busy kitchens where function meets fashion.
How Superior Quartz Construction Makes Black Sinks Virtually Indestructible
Exceptional Scratch and Impact Resistance
- 80% natural quartz crystals create a Mohs hardness rating of 7, harder than granite and steel knives
- Black finish naturally conceals minor scratches and wear marks that would show prominently on lighter surfaces
- Dense quartz composite construction resists chips and impact damage from heavy cookware
Professional-Grade Heat Protection
- Withstands temperatures up to 535°F without damage or discoloration to the Black finish
- Thermal shock resistance prevents cracking from rapid temperature changes during cooking tasks
- Natural quartz maintains structural integrity under extreme heat conditions
Superior Stain and Bacteria Resistance
- Non-porous surface prevents bacteria growth up to 98%, maintaining sanitary conditions
- Food residue, grease, and organic matter cannot penetrate the sealed Black surface
- Eliminates odor retention and discoloration that affects porous natural stone materials
Advanced Sound Dampening Technology
- Quartz material absorbs vibration, reducing dish-washing noise by up to 70% compared to stainless steel
- Dense composite construction creates a quieter kitchen environment during meal preparation
- Minimizes sound transmission through countertops and cabinetry
Optimal Single Bowl Configuration
- 30" x 16¾" x 9" internal dimensions accommodate commercial-size cookware and baking sheets
- Deep 9" bowl depth handles oversized pots without water splashing onto countertops
- Rear drain placement maximizes usable workspace while creating additional cabinet storage below
Your Comprehensive 25-Year Quality Assurance
Karran stands behind the Undermount Sink in Black with an industry-leading 25-year limited warranty that covers both material performance and color consistency under normal residential use. This protection begins automatically upon installation without requiring warranty registration or annual maintenance contracts.
Complete Performance Coverage:
- Structural integrity of the 80% quartz composite material
- Color consistency and fade resistance in the Black finish
- Non-porous surface performance and bacterial resistance
- Heat resistance up to 535°F rating
- Manufacturing defects in drain assembly and mounting hardware
- Expedited processing for warranty claims within 5 business days
- Full warranty coverage transfers to new homeowners with proper documentation
Questions About the Undermount Sink in Black?
Q: Does the Black finish show water spots like stainless steel sinks?
A: No. The matte Black finish naturally conceals water spots, mineral deposits, and soap residue that appear prominently on polished stainless steel surfaces. Daily water marks blend with the finish, significantly reducing visible maintenance needs.
Q: How does scratch resistance compare between black quartz and stainless steel?
A: Black quartz provides superior scratch resistance with a Mohs hardness rating of 7 compared to stainless steel's 5.5-7 rating. More importantly, any minor scratches that do occur are virtually invisible against the black surface, unlike stainless steel where every mark shows prominently.
Q: Can I use bleach or harsh chemicals on the Black finish?
A: Yes, but with limitations. Dilute household bleach with 15 parts water and limit contact to 1 hour maximum. Avoid undiluted bleach, ammonia-based cleaners, and abrasive chemicals that can damage the surface.
Q: Will the black color fade or change over time?
A: No. The Black pigment is integrated throughout the material during manufacturing, not applied as a surface coating. UV-stabilized resins prevent color degradation, ensuring consistent appearance for decades.
Q: How does maintenance compare to white or light-colored sinks?
A: Black sinks require less frequent cleaning because water spots, soap scum, and minor stains blend naturally with the dark surface. Light-colored sinks require daily attention to maintain their appearance, while black sinks look clean longer between deep cleanings.
Q: Is the Undermount Sink in Black compatible with garbage disposals?
A: Yes. The 3½" drain opening accommodates most standard garbage disposal units. The rear drain placement provides additional clearance for disposal installation and maintenance access.
Color Options
QU-712 Concrete | QU-712 Bisque | QU-712 Brown | QU-712 Gray | QU-712 White
Bottom Protection Grids
GR-6009 Stainless Steel Bottom Grid
Drain Components
Installation
Professional Undermount Clip Set | Bisque Seaming Adhesive | Black Seaming Adhesive | Brown Seaming Adhesive | White Seaming Adhesive
Maintenance Products
See the Undermount Sink in Black Dominate Performance Testing
Comparative Durability Analysis:
Laboratory testing demonstrates the Undermount Sink in Black's superior performance across critical categories:
Performance Metric | Undermount Sink in Black Quartz | Stainless Steel | Ceramic/Porcelain |
---|---|---|---|
Scratch Resistance | Excellent (Mohs 7) | Good (Mohs 5.5-7) | Poor (Mohs 3-4) |
Heat Tolerance | 535°F | 400°F | 300°F |
Stain Visibility | Minimal | High | Moderate |
Noise Reduction | 70% quieter | Baseline | 30% quieter |
Bacteria Prevention | 98% effective | 85% effective | 60% effective |
Maintenance Frequency | Weekly | Daily | Daily |
Industry Certifications:
- IAPMO Listed for Uniform Plumbing Code compliance nationwide
- NSF/ANSI 61 certified for safe drinking water contact
- ISO 9001:2015 quality management system certification
- Made in USA with domestic and international premium materials
- 25-year manufacturer warranty exceeds industry standards
The Undermount Sink in Black incorporates Karran's exclusive vibration-dampening technology that reduces kitchen noise pollution by up to 70% compared to traditional stainless steel installations. This engineering advancement utilizes the natural density of quartz crystals to absorb sound waves from running water, dish contact, and food preparation activities.
What Customers Say About Their Karran Undermount Sink Experience
"Installed the Black QU-712 eight months ago and it's been incredible. The contrast against our white quartz countertops is stunning, and maintenance is so much easier than our old stainless steel sink. Water spots just disappear." David R
"As someone who cooks every day, I needed something that could handle serious use. The black quartz has exceeded expectations - it's quiet, scratch-resistant, and the single bowl design fits my largest pots perfectly." Maria L
"Three kids and constant cooking, but this sink still looks brand new after 14 months. The black finish hides everything that used to drive me crazy with our white ceramic sink. Worth every penny." Thomas K
Industry Recognition and Professional Endorsements:
- Kitchen & Bath Design News "Editor's Choice" for scratch-resistant surfaces 2024
- National Kitchen & Bath Association recommended product for contemporary designs
- Professional Builder Magazine "Top Specified" composite sink for luxury installations
- 4.8/5 star average rating from certified kitchen designers nationwide
Verified Performance Data:
- 97% customer satisfaction rating based on 18-month follow-up surveys
- Less than 1.2% warranty claim rate across all Black finish installations
- Average product lifespan exceeds 23 years with standard maintenance protocols
- 93% of customers would recommend to friends and colleagues
Undermount Sink with Uncompromising Performance
The Karran Undermount Sink in Black quartz undermount sink delivers uncompromising performance through its superior 80% quartz construction, 535°F heat resistance, and 25-year warranty protection. The sophisticated Black finish provides exceptional scratch concealment and water spot resistance while creating a dramatic focal point for contemporary kitchen designs.
Key performance advantages include 70% noise reduction compared to stainless steel, 98% bacteria prevention through non-porous surface technology, and superior scratch resistance with a Mohs hardness rating of 7. The generous 30" x 16¾" x 9" single bowl configuration accommodates commercial-size cookware while the rear drain design maximizes both workspace and cabinet storage below.
The matte Black finish represents a significant maintenance advantage over lighter-colored alternatives, naturally concealing water spots, soap residue, and minor wear marks that require daily attention on white or stainless steel surfaces. This practical benefit, combined with the sink's professional-grade durability, makes it an exceptional choice for active kitchens.
Please be advised that product(s) you’re purchasing may have State of California Prop 65 warnings associated. For more information, go to www.P65Warnings.ca.gov
Specifications
Box Quantity | 1 |
Product Type | |
Bowl Size | 30" x 15-3/4" x 9" |
Color | Black |
Depth | 9" |
Gauge | |
Left Bowl Size | |
Length | 32-1/2" |
Material | Quartz |
Mounting Type | Under Mount |
Purpose | Kitchen Sink |
Style | Extra Large Single Bowl |
Right Bowl Size | |
Width | 19-1/2" |