Chemical conversion coat (Chem film) | Surface Finishes for Metal and Plastic Parts

Chemical conversion coat (Chem film)

Description

Non-chromic chemical conversion coating provides corrosion resistance and good conductivity properties. The film is colorless and transparent. Adds very little thickness, about 0.00001”-0.00004”. Chem film will conform to MIL-DTL-5541, TYPE II. It contains no hexavalent chromium, a substance which became regulated under RoHS directive in Europe and so forth as an environmentally hazardous substance.

Technical properties


Sharp edges and burrs	Removed
Premium appearance availability	Yes
Tolerances	Met after surface finish

Colors

Applicable to all pantone colors

Applicable Materials

Aluminum

Example of an Chem film part

Design considerations for Chem film

Some substrates may not respond well to the process, or the coating may not adhere correctly to the surface, resulting in poor product quality.
Chem film has limited resistance against mechanical damage such as scratches, abrasions, or impact.
The coating imparted by Chem film is relatively thin, and in some cases, it may not provide adequate protection against corrosive agents.

The Justway Chem film process

Chem film is a highly effective and versatile surface treatment that can improve the performance and longevity of metal components in a range of industries, from aerospace to automotive to electronics. Let’s break down the basic steps for Chem film a part:

Clean up the parts to be treated
Metal parts treated with alkali solution
Metal parts treated with acid solution
The chem film coating solution is typically applied to the surface through a dip or spray process
Rinsing and Drying

Cookie Preferences

Cookies are small files which, when placed on your device, enable us to provide certain features and functionality of Justway websites and online services to you. We use the following types of cookies on our websites. You have the ability to accept or decline cookies as you prefer. View Cookies Policy for full details.

Required Cookies

Always active

These cookies are necessary to enable the basic features of this site to function, such as providing secure log-in and related services core functionality. Without them, the site could not operate, so they cannot be disabled.

Functional Cookies

Yes No

Cookies that help us remember your preferences and settings in order to improve your experience when interacting with our sites and services.

Advertising Cookies

Yes No

Our third-party service providers and Our business partners may use advertising cookies to collect data about your online activities and your browsing habits on their websites. Thanks to the data collected by these cookies, they can offer you relevant advertising tailored to your preferences and interests.

CNC Machining

Sheet Metal Fabrication

3D Printing

Injection Molding

Urethane Casting

Help Center

Resource Center

About Us

Contact Us

Privacy Policy & Agreement

Shipping Method Guide

Quality Control

Blog