Smooth Finish Channel

Trim Purpose

Specs, MSDS, and LEED Information for Flannery Trims & Products

Flannery’s Smooth Finish Channels create an aesthetic reveal in any stucco wall system. Smooth Finish Channels break up plaster or stucco walls by creating horizontal and vertical reveal lines. Flannery’s Smooth Finish Channels are unique because they do not have the traditional plaster key at the reveal edge. With the plaster key removed, the plasterer can bring his finish coat right up to the reveal edge creating a clean sharp edge.

Product Details

Flannery’s Smooth Finish Trims are standard extruded aluminum alloy 6063 T5 and have a .050” nominal wall thickness. Aluminum Plaster trims come in 10′ lengths and shall have a standard Clear Anodized Finish. Mill Finish (for field priming & painting), Chem-film finish or other factory finishes and custom paint orders are available. Click on Info Tab above for Factory Finishes.


Part No. “A” Depth “B” Width Venting Available
SFC 468-375 15/32″ 3/8″ N/A
SFC 50-25 1/2″ 1/4″ N/A
SFC 50-50 1/2″ 1/2″ Yes
SFC 50-75 1/2″ 3/4″ Yes
SFC 75-25 3/4″ 1/4″ N/A
SFC 75-50 3/4″ 1/2″ Yes
SFC 75-75 3/4″ 3/4″ Yes
SFC 75-100 3/4″ 1″ Yes
SFC 75-200 3/4″ 2″ Yes

*Custom Sizes Are Available

Install all Smooth Finish Trims using full ten-foot lengths wherever possible. Attach Smooth Finish Trims over the weather resistant barrier to the framing with nails, screws, or other approved fastening methods. All Plaster Trims must be cut accurately and installed with tight, neat joints. All nailing flanges must be covered with lath and all butt joints must be sealed. Manufacturer recommends that a carbide tip blade along with lubricant be used when cutting any aluminum trims.


Flannery offers prefabricated intersections and corners for intricate building designs that utilize intersecting lines and bands on exterior walls. Prefabricated intersections and corners are mitered and then welded together at their attachment flanges, then vinyl tape is applied to the back of the reveal to prevent water intrusion. Factory welded intersections and corners come with 6” legs, however custom leg lengths can be ordered.




Flannery can radius Smooth Finish Channels when the trim runs along a “curved” or “radiused” plane. Radiused material is bent to a project’s dimensional requirements and is considered a custom product. Download the Radius Order form below to place an order or receive a quote.



Smooth Finish Channel Radius Form