If it is reasonably warm, about 24 hours should be plenty. I have used a few of the Bedrock kits and the mix ratio, unless mistaken, is actually very simple at 1:1, resin to hardener. You can just eyeball it as it has a fairly wide tolerance. The only messy part of any of these is the "aggregate" which in the case of the Bedrock product is the micro balloon powder which is like a super fine, "puffed" ceramic dust or something. But I will say I like the "balloons" better than the fiber glass flocking that comes (or did) with the original old Micro bed kits- not to mention that odd mix ratio that product uses. It takes a little time for the balloon powder to "wet" and mix with the compound. Just mix it in slowly a little at a time while mixing the hardener and resin. I don't overdo the micro balloons so have ended up with a fairly good quantity in a few bottles after the hardener and resin have been used up in each kit. For mixing, I use a long Popsicle stick in a shallow plastic cup. And slowly mix in the coloring agent during the process until satisfied with the match.... such as that may be. Difficult to get an exact match to any one wood color.
I dab the compound into the stock areas (like honey dipping) using a Popsicle stick. Have to eyeball the amounts so good fill, distribution are balanced against too much ooze out. Anyway good luck! Yes- a mechanical lock is your biggest enemy with no worries about epoxy adhesion if released agent has been properly used.
For release agents- Johnson's paste wax is the least expensive of the "waxes" that work well. Shoe polish works. Renaissance Micro Crystalline wax works. Car wax work.... so on, etc.
