Thanks Jeff
I have some marine tex ordered but it may be a while as it was backordered to me (a few weeks now) and I cannot find it locally. I do have an un opened 1# can(s) of PC-7 that is less than a year old. In the past, I've used PC-7 to repair pitted, porous and cracked castings on pumps and gearboxs' with 100% success. (fingers crossed)
Since it has been a long time since I glass bedded a rifle, the backorder may be a blessing in disguise. I'm going to "practice" on a 10-22 with the PC7 product and when the marine tex arrives I'll continue with my 700's. The practice will show me how much shrinkage to expect and hone technique.
As for release agent, I have an aerosol dry teflon (might be silicone?? ) product we used on a plastic extrusion molds. Nothing sticks to it, not even good duct tape. Once applied, the coating is nearly inperceptable. I'll test on some scraps of steel first to make sure it works on the epoxy.
In my post, I was wondering if there would be any unpleasant surprises.
Thanks again
Pete