RATCO offers the following options for frame finishes.


Electrostatic Powder Coating - Our preferred finish due to it's durable surface...  it is an electrostatically applied  plastic coating  infiltrating the substrate of the metal  providing  a distinctive finished look.  We have found this surface finish to be far superior to any painted finish.  This polyester powder coating material can be repaired easily...  It  will not pull back significantly if welding is necessary nor will it flame up in the welding process.  We have found that it can be spread with a trowel when it is hot and blended easily. To make the repair look natural, feather the area when cool with sandpaper and paint with Krylons new fusion paint. It is  made to paint polyester plastics thus  providing a coating  like the type of powdercoat we use.  Our new awareness of the qualities of this powder coat and the fact that paint and powder coat now costs about the same, has led us to drop paint from our options list. Powder coating includes sandblasting, sanding, powder primer coat and a powder finish coat in a variety of colors. Black is the most popular, but a variety of other colors are available.

Phosphoric Acid Coating  - Frames that our customers would rather finish themselves are sprayed with a metal prep solution to keep the frame from surface rusting until it is sandblasted and finished. This coating forms a white powder on the surface easily removable with soap and water.   It is highly recommended that the chassis be sandblasted and finished as soon as possible.

Un-Finished - As the title implies, completely unfinished


Expanding Foam - Our Preferred choice is relatively new to the market..   This foam is expanding closed cell,  water proof foam which sticks like glue to all surfaces when hardened. It is not a sponge and will not absorb water. Also it does not allow anything to infiltrate the interior of the chassis.  The expanding foam is forced into one end of the open tubing  and allowed to ooze out of the other end to assure a complete fill. Once fully expanded  the over fill is cut away and the fill holes are filled with plastic caps.  This foam application does two things to the structure.  First it makes for an impenetrable water seal and secondly sound dampens the frame. You may think this a minor point but in fact the frame does resonate and amplify the vibrations caused by road conditions and those passed along by the drive train. Foam filling quiets the ride appreciably. About 90% of all the frames made to date are foam filled.