Method for electrodepositing a coating on an interior surface

A method of electrodepositing a coating on an interior surface of a device, the method comprising:

• (a) injecting a solution of resin particles into an interior space, wherein the interior space is surrounded by the interior surface;
• (b) applying a current through the interior space to deposit the resin particles onto a portion of the interior surface;
• (c) curing the resin particles on a first portion of the interior surface to form a coating;
• and
• repeating steps (a) through (c) until the coating is forming on all of the interior surface.

A method of applying a coating to interior surfaces of a device having a first channel, a second channel and a plurality of tubes, wherein each tube is located between and perpendicular to the first channel and the second channel, the method comprising:

• (a) placing a first anode in the first channel and a second anode in the second channel;
• (b) pumping a solution of resin particles through the first channel of the device such that the first and second channels and the tubes are filled with resin particles;
• (c) applying a voltage to the first and second anodes to create a flow of current through the first and second channels and into each of the tubes;
• (d) depositing resin particles onto a first portion of an interior surface of each of the tubes as a function of current flowing through the tubes, wherein the deposited resin particles form a first coating;
• (e) removing the first and second anodes from the device;
• (f) emptying the solution from the device;
• (g) curing the coating on the first portion of the interior surface of each of the tubes;
• and
• repeating steps (a) through (g) to deposit resin particles onto a second portion of the interior surface to form a second coating in each of the tubes, wherein the second coating is located further into the tube relative to the first and second channels.