BLANCO 522429
BLANCO PRECIS SILGRANIT Single Bowl Undermount Kitchen Sink User Manual
Model: 522429 | Brand: BLANCO
Product Overview
The BLANCO PRECIS SILGRANIT Single Bowl Undermount Kitchen Sink is an engineered composite sink made of 80% solid granite. Designed for durability and ease of maintenance, it withstands heavy cookware, hot bakeware, and scuff marks. Its food-safe surface protects against bacteria, ensuring a hygienic kitchen environment. This model features a rear-positioned drain for maximum usable bowl and cabinet storage.

Figure 1: Top-down view of the BLANCO PRECIS SILGRANIT Single Bowl Undermount Kitchen Sink in White.
Setup and Installation
Proper installation is crucial for the longevity and performance of your BLANCO sink. This undermount sink requires careful alignment and sealing to your countertop.
Pre-Installation Checklist:
- Verify all components are present and undamaged.
- Ensure countertop cutout dimensions match the sink's specifications.
- Gather necessary tools and sealants.
Installation Steps:
- Prepare the countertop opening according to the provided template.
- Apply a continuous bead of silicone sealant around the rim of the sink.
- Carefully position the sink under the countertop opening.
- Secure the sink using the provided mounting clips, ensuring even pressure.
- Connect plumbing fixtures, including the drain assembly and faucet.
- Allow sealant to cure completely before use (refer to sealant manufacturer's instructions).
For detailed instructions, please refer to the official Installation Manual (PDF) available on the product's Amazon page or the BLANCO website.

Figure 2: The BLANCO sink seamlessly integrated into a kitchen countertop, demonstrating its undermount installation.
Operating Your Sink
Your BLANCO SILGRANIT sink is designed for everyday kitchen tasks. Its single bowl design offers ample space for large pots and pans, making dishwashing and food preparation more efficient.
Key Features for Operation:
- Spacious Single Bowl: Accommodates large cookware, reducing the need for multiple washes.
- Rear-positioned Drain: Maximizes usable basin area and provides more under-cabinet storage.
- Heat Resistance: Withstands temperatures up to 536°F, allowing direct placement of hot bakeware from the oven.

Figure 3: An overhead view highlighting the spacious single bowl and the rear-positioned drain of the BLANCO sink.
Maintenance and Care
Maintaining your BLANCO SILGRANIT sink is simple due to its non-porous, hygienic surface. Regular cleaning will keep it looking new for years.
Daily Cleaning:
- Rinse the sink thoroughly after each use to remove food particles and residue.
- Wipe down the sink with a soft cloth or sponge and mild dish soap.
- For best results, dry the sink with a clean cloth to prevent water spots, especially in hard water areas.
Deep Cleaning (Weekly/Bi-weekly):
- For stubborn stains, use a non-abrasive cleaner specifically designed for granite composite sinks.
- Apply the cleaner, let it sit for a few minutes, then scrub gently with a soft brush or sponge.
- Rinse thoroughly with water.
What to Avoid:
- Avoid abrasive cleaners, steel wool, or scouring pads, as these can damage the surface.
- Do not use strong acids or alkalis, such as oven cleaners or drain cleaners, directly on the sink.
- While the sink is scratch-resistant, avoid dragging sharp or heavy objects across the surface unnecessarily.

Figure 4: The non-porous surface of the BLANCO sink resists staining, as demonstrated by spilled blueberries.
Video 1: "Silgranit Production - Made in Canada" by BLANCO. This video showcases the manufacturing process of SILGRANIT, highlighting its durability and resistance to scratches and stains.
Troubleshooting
While BLANCO SILGRANIT sinks are highly durable, occasional issues may arise. Here are some common concerns and their solutions:
Common Issues:
- Water Spots/Mineral Deposits:
Solution: Regularly dry the sink after use. For existing deposits, use a solution of vinegar and water or a specialized mineral deposit remover. Rinse thoroughly.
- Light Scuff Marks:
Solution: The SILGRANIT material is highly scratch-resistant. Minor scuff marks can often be removed with a soft cloth and a mild abrasive cleaner (e.g., Bar Keepers Friend) or a specialized SILGRANIT cleaner. Always test on an inconspicuous area first.
- Discoloration/Stains:
Solution: The non-porous surface resists most stains. For persistent stains, try a diluted bleach solution (1 part bleach to 10 parts water) applied with a soft cloth. Let it sit for a short period, then rinse thoroughly. Avoid prolonged contact with strong staining agents like coffee, tea, or red wine.
- Cracks (during shipping/installation):
Note: While durable, composite sinks can be susceptible to damage during transit or improper installation. Inspect the sink thoroughly upon delivery. If cracks are present, contact your retailer immediately for replacement. Proper installation is key to preventing stress cracks.
Video 2: "Which to choose? Kohler or Blanco Kitchen Sinks #thisorthat" by Justin. This video compares the cleaning and durability of Blanco SILGRANIT sinks against Kohler enameled cast iron sinks, noting the ease of cleaning for Blanco.
Specifications
| Feature | Detail |
|---|---|
| Brand | BLANCO |
| Model Number | 522429 |
| Color | White (Matte-white with soft gray speckle) |
| Material | SILGRANIT (80% solid granite composite) |
| Installation Type | Undermount |
| Product Dimensions | 24"D x 36"W x 16"H |
| Size (for cabinet) | 26.81" L X 17.75" W for 30" Cabinet |
| Item Weight | 16 ounces (1 pound) |
| Heat Resistance | Up to 536°F |
| Drain Type | Lift and Turn |
| Country of Origin | Canada |
| UPC | 747943041027 |

Figure 5: Detailed dimensions of the BLANCO PRECIS SILGRANIT Single Bowl Undermount Kitchen Sink.

Figure 6: Close-up view of the White SILGRANIT material, showing its matte finish and subtle gray speckles.
Warranty and Support
BLANCO stands behind the quality of its products.
Warranty Information:
Your BLANCO PRECIS SILGRANIT Single Bowl Undermount Kitchen Sink comes with a Limited Lifetime Warranty. This warranty covers manufacturing defects under normal use and service. Please retain your proof of purchase for warranty claims.
Customer Support:
For further assistance, technical support, or warranty inquiries, please visit the official BLANCO website or contact their customer service department. You can also find more information and products at the BLANCO Store on Amazon.
Ask a question about this manual
Ask about setup, troubleshooting, compatibility, parts, safety, or missing instructions. Manuals+ will review the question and use this page’s manual context to help answer it.







