How to Specify Kitchen Sink Surface Finish in an RFQ

Quick Answer

Do not specify a stainless steel sink finish with only:

Brushed
Satin
Gunmetal
Black
Gold

Rose gold

A useful RFQ should define:

• finish type
• base stainless steel surface
• brushing direction or texture
• color reference where applicable
• visible surface requirement
• accessory finish
• logo appearance
• approved sample or finish reference
• packing protection

For PVD or other colored sinks, keep a physical approved finish reference for repeat orders.

A finish name tells the supplier the direction. An approved reference tells production what to reproduce.

1. “Brushed” Is Not a Complete Specification

Two suppliers can both quote:

Brushed SUS304

and still supply visibly different surfaces.

Differences may include:

• brushing direction
• line depth
• surface roughness
• brightness
• polishing before brushing
• visible scratch acceptance

So if appearance matters to the program, avoid treating “brushed” as a complete technical standard.

2. Define the Finish Type First

Start by telling the supplier what finish family is required.

Typical examples include:

• brushed
• satin
• PVD gunmetal
• PVD gold
• PVD black
• PVD rose gold
• Honeycomb

If the exact process matters, state it.

Do not use only:

black sink

because several surface treatments can produce a dark appearance while having different:

• cost
• process
• color
• durability
• MOQ

3. The Base Surface Matters

Decorative finishes are applied over an existing stainless steel surface.

That base surface can influence the final appearance.

Confirm whether the sink should have:

• brushed substrate
• satin substrate
• polished substrate
• another defined surface

This is particularly important for reflective PVD finishes.

The coating color may be similar, but a different substrate can make the finished sink look noticeably different.

4. Brushing Direction Should Be Consistent

On a large sink surface, brushing direction affects how light reflects.

Check:

• bowl wall direction
• bottom appearance
• rim direction
• visible transitions

For handmade sinks, corners and welded areas also need to blend with the surrounding finish.

If the brushing pattern changes around a repaired area, the material may be correct while the sink still looks inconsistent.

5. Do Not Approve PVD Color from a Screen Alone

Photos are useful for communication.

They are weak as final color standards.

The same PVD sink can look different because of:

• camera exposure
• phone processing
• screen brightness
• white balance
• room lighting

For repeat private-label programs, keep a physical approved reference where practical.

For example:

PVD Gunmetal — Approved Finish Reference Rev.01

6. Define Which Surfaces Are Visible

Not every surface requires the same visual acceptance.

For example:

• inner bowl
• rim
• flange
• apron face
• faucet deck

may be highly visible.

Other areas may be hidden after installation.

If a specific visible area has a tighter appearance requirement, identify it before sample approval.

7. Accessory Finish Must Be Included

A colored workstation sink may include:

• drain
• bottom grid
• soap dispenser
• basket
• colander

These components may come from different production processes.

So the RFQ should state whether accessories should:

• match the sink color
• use stainless steel natural finish
• use a contrasting finish

Do not assume:

Gunmetal sink

automatically means:

every accessory must be identical gunmetal.

8. “Matching” Needs a Practical Reference

Perfect visual identity between different components may not always be realistic.

A drain and sink body may use:

• different base materials
• different shapes
• different polishing
• different finishing batches

For buyers, the more practical question is:

Does the complete visible set look consistent enough against the approved reference?

If tighter color control is required, define it before quotation rather than after shipment.

9. Logo Appearance Can Change with the Finish

For private-label products, the logo method should be reviewed on the actual finish.

For example:

• laser mark on brushed stainless steel
• laser mark on dark PVD
• etched logo
• label on carton only

The same logo can appear very different on:

satin silver

vs

dark gunmetal.

Approve:

• method
• size
• location
• contrast
• orientation

together with the sink finish.

See Private Label Product Programs for other branding items that should be defined with the SKU.

10. Finish Can Change MOQ

Special finishes may have their own practical batch requirement.

That can come from:

• finishing-line setup
• color batch
• external processing
• accessory color
• minimum processing quantity

So the sink-body MOQ and the finished-SKU MOQ may not be the same.

Ask:

Is the quoted MOQ for the raw sink body or the complete finished color program?

11. Finish Can Change Lead Time

A standard brushed sink may move directly through factory finishing.

A specialty color may require:

• surface preparation
• external processing
• color approval
• accessory matching
• additional protection

This can add steps to sample development and bulk production.

If the finish is commercially important, include it in the initial RFQ rather than adding it after the base sink price is quoted.

12. Packing Should Change for Decorative Finishes

A PVD or colored sink can be more sensitive to:

• rubbing
• metal-to-metal contact
• loose accessories
• surface abrasion

The RFQ should therefore consider:

• protective film
• foam
• accessory separation
• grid protection
• carton movement

The finish is not fully controlled until the packing is also defined.

13. A Better Surface Finish RFQ

Instead of:

SUS304 black sink

use:

Material: SUS304
Finish: PVD Gunmetal
Drain: Matching gunmetal finish
Grid: Natural stainless steel
Logo: Laser logo
Packing: Individual surface protection + accessory separation

For a standard brushed sink:

Material: SUS304
Finish: Satin
Packing: Surface protection before carton packing

The exact level of detail should match the commercial importance of the finish.

14. What Should Be Approved on the Sample?

Before mass production, confirm:

• finish type
• base surface
• brushing appearance
• visible color
• accessory color
• logo
• surface defects
• packing protection

For colored products, compare the sink under a consistent visual condition where practical.

15. What Should Be Retained for Repeat Orders?

Keep:

Physical Finish Reference

For visual appearance.

Approved Sample

For the complete sink.

Finish Specification

For process and color description.

Accessory Reference

For visible matching.

Packing Reference

For surface protection.

This is much stronger than writing:

Same color as last order.

Surface Finish RFQ Checklist

Buyer Takeaway

Do not ask only:

What colors can you make?

Ask:

What exactly defines this finish, and what reference will production use again on the next order?

For standard brushed sinks, define the surface appearance clearly.

For PVD and colored sinks, connect:

surface preparation → color reference → accessories → packing → repeat-order approval.

That turns a color preference into a reproducible product specification.

FAQ

Is “brushed” enough for a sink RFQ?

It may be enough for an early quotation, but appearance-sensitive programs should also define or approve the brushing reference.

Should PVD color be approved using a physical sample?

Preferably yes. Digital photos are affected by camera, screen and lighting conditions.

Can sink and accessory PVD colors vary?

Yes. Different materials, shapes and finishing batches can affect appearance, so visible accessories should be reviewed with the sink.

Does PVD affect MOQ?

It can. Decorative finishing and matching accessories may have separate batch or processing requirements.

Should packaging be different for PVD sinks?

Often yes. Surface protection and accessory separation become more important for decorative finishes.

Preparing a Finished Sink RFQ?

Use the Kitchen Sink RFQ Checklist to define finish together with dimensions, thickness, accessories and quantity.

For private-label branding and packaging, see Private Label Product Programs.

For repeat-order PVD control, also read How to Control PVD Sink Color Between Repeat Orders.