Haven't used the paper for over 30 years.
Basically it's a PE/RC paper with developer incorporated and designed to be used in a Rapid Access machine using Activator & Stabiliser, Iflord made an equivalent - Ilfoprint.
In practice the paper will develop in about 10-15 seconds in a reasonably alkali solution, activators were usually Sodium Hydroxide based, but you can develop in an ordinary print developer, it'll appear almost instantly and deveop fully.
Now stabiliser is Thiocyanate based and these prints usually weren't washed but Fixer works perfectly and followed by the usual washing you will have a normal resin coated image.
The process was designed to produce dry prints in about 40seconds, probably oginally for military uses, stabilised prints are not permanent and degrade quite quickly but later fixing and washing remedied.
Thinking back the first RC paper I bought was ex UK Military/Government surplus stock, and was just prior to the release of Ilfospeed which was the first commercial RC paper.
Ian