Capabilities · Finishes
Surface finishes and heat treatment
Finishes are applied by specialist shops that work with the factory. They are part of your quote, your order and your inspection: masked faces, coating contact points and faces re-machined after coating are agreed with you before production.
01Finishes
Finishes we arrange
| Finish | Materials | What to specify on the drawing | What we agree with you |
|---|---|---|---|
| Anodizing, including black | Aluminum | Color; faces and threads to mask; whether engraving follows | Parts are blow-dried fully after anodizing to avoid drip and water marks. Engraving after anodizing is possible. |
| Black oxide | Steel | Which faces are functional | Contact faces can be re-machined after coating to stay bare. |
| Passivation | Stainless steel | Whether a salt-spray test is required | Salt-spray tests can be run by the factory where your drawing requires them. |
| PVD coating | Stainless steel | Color; where hanging or contact marks are acceptable | Hanging and contact points leave small marks; their position is agreed with you in writing. |
| Heat treatment and hardening | Steels | Hardness range and where it is measured | Hardness on the drawing is checked against the material before the quotation. |
| Painting (PU and epoxy) | Metals and plastics | Color system, gloss, cosmetic faces | Primer system and curing time are agreed for plastic parts. |
| Silk-screen printing | Painted and anodized parts | Artwork as PDF, position and color | Printed from your PDF artwork. |
| Other finishes | On request | Name the process and its specification | Specify with the drawing; this is confirmed before the quotation. |
Finishes by process: anodized CNC machined parts, painted sheet-metal enclosures, painted plastic parts, hardened fixture wear parts and black oxide springs.
02In our orders
Finishes on parts we have manufactured
Gold and black anodizing on aluminum, black oxide on alloy steel, and a bright plated finish on copper.
Milled frame · AL6061, gold anodizedManufactured to customer drawing 
Milled block · AL6061, black anodizedManufactured to customer drawing 
Milled bracket · SAE4340 alloy steel, black oxideManufactured to customer drawing 
Machined frame · copper, platedManufactured to customer drawing
03Masking
Bare faces
Electrical contact faces, locating faces and threads may need to stay bare. Show them on the drawing. The factory masks them, or re-machines them after coating where masking is not reliable.
04Contact points
Hanging marks
Parts are hung or racked during anodizing, plating and PVD coating, and the contact points leave small marks. Their position is agreed with you in writing, away from cosmetic faces.
05Tests
Salt-spray tests
Where your drawing requires a salt-spray test, the factory can run it, and the result is reported with the parts. Please state this with the RFQ, so that the test is included in the quotation.
06Specify
Name the black finish
Black oxide, black anodizing, black PVD and QPQ are different processes with different appearance, thickness and corrosion behavior. The process named on the drawing is the one used; any change requires your written approval.
07Other finishes
Other finishes on request
If your drawing calls for a finish that is not listed here, name the process and its specification with the drawing. We confirm with the factory before the quotation, and if it cannot be met, this is stated together with a proposed alternative.
08FAQ
Questions about finishes
Who arranges finishing?
Finishes are applied by specialist shops that work with the factory. Coating contact points and masked areas are agreed with you before production.
How do we mark faces that must stay bare?
Show them on the drawing as masked faces. Contact faces can be re-machined after coating. This is agreed before production.
Can anything change without my approval?
No. No change to material, finish, process or drawing interpretation goes ahead without your written approval.
What if my drawing calls up a specific standard?
We place the order with a factory that works to it, and the parts are inspected to it. If a requirement cannot be met, this is stated before the quotation, together with a proposed alternative.
Request a quotation
Send your drawings with quantities, material and finish. Drawing questions are raised before the quotation, and the quotation is issued by PAXIS in US dollars.