Do you mean Super Record, or Sakae Ringyo?
In either case, I would first apply a penetrating oil to saturate the compressed corrosion, which alows this solid matter to migrate away as a slurry from the surfaces which contain it.
Next, you need to initiate movement. Consider that ANY amount of torque will produce a finite amount of windup in the post, and that as this movement progresses toward the bottom end of the post (as the corrosion becomes slurry) the post will beging winding up along a greater portion of it's length until it is free.
It is necessary to maintain saturation of the interface and allow time for the penetrant to move through loosened corrosion, so I recommend applying a long adjustable wrench to the head of the post and torqueing it back and forth, repeating this nightly for as long as it takes.
You will need to judge the amount of torque and number of cycles, and there's no easy way to quantify that, but using patience as I have described (and progressive increases in torque) has so far freed every post but one that I have been temporarily stumped by.
I use an 18" adjustable wrench. The Sakae Ringyo posts are my favorite as they seem to yield (a welcome warning) before they break. I would discard any alloy post that has been heavily torqued on as is will be weakened.
In the case of any post that doesn't allow great torque to be applied, the patience factor may wear thin and the old hacksaw method may be needed.
David Snyder Auburn, CA usa
>I am in possession of an older Tommasini with a very, very frozen SR
> seat post.
>
> Any suggestions?
>
> Andy Bohlmann
>
> Colorado Springs, CO