Home Forums Hunting & Shooting Gunsmithing J-B weld bedding a ruger hawkeye synthetic stock (pictures)

Not sure of the motivation for the original poster, but as it sets, epoxy shrinks in proportion to the amount used. Some epoxies shrink more than others of course, but regardless the rule of the thumb is that the more that is used, the more it shrinks.

Therefore by applying the "bulk" of the epoxy first, and letting it cure, you let the vast majority of a shrinkage occur...The second "skim coat" will then show virtually no shrinkage..

Bedding epoxies are designed to be low shrinkage anyway, but I'm not sure about J-B Weld, so this two stage approach would seem a good idea.