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Rifles, Reloading, Optics, Equipment
Gunsmithing
Favorite bedding compounds
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<blockquote data-quote="Susquatch" data-source="post: 1952252" data-attributes="member: 31264"><p>Over the years, I've used most of the epoxy compounds out there a time or two. Some are better than others. I've had consistent success with Devcon and I use the liquid for skim bedding and the putty for most regular bedding now. </p><p></p><p>I have not had any major shelf life issues. Even after a major health issue that stopped me from doing any bedding work for several years, all it took was some serious mixing and kneeding to soften up the resin. The hardner never has a problem. </p><p></p><p>From an Engineer's perspective, all these shrinkage concerns are much to do about nothing. One must keep in mind that the ratings are in inches per inch. For a 1" thick layer, the manufacturer claims the change is only 0.0006 inches - just a bit over 1/2 a thou. HOWEVER, I don't know anybody who uses an inch of bedding. A tenth of an inch is probably more than most bedding jobs. So the actual shrinkage is more like a half of a tenth of a thou. Conventional measuring tools cannot even measure it. </p><p></p><p>In other words, shrinkage for Devcon Steel Epoxy is a zero issue. </p><p></p><p>It's also important to recognize that synthetic stocks also shrink because they are also resin based. Wood stocks are far worse and I won't even begin to cover the issues.</p></blockquote><p></p>
[QUOTE="Susquatch, post: 1952252, member: 31264"] Over the years, I've used most of the epoxy compounds out there a time or two. Some are better than others. I've had consistent success with Devcon and I use the liquid for skim bedding and the putty for most regular bedding now. I have not had any major shelf life issues. Even after a major health issue that stopped me from doing any bedding work for several years, all it took was some serious mixing and kneeding to soften up the resin. The hardner never has a problem. From an Engineer's perspective, all these shrinkage concerns are much to do about nothing. One must keep in mind that the ratings are in inches per inch. For a 1" thick layer, the manufacturer claims the change is only 0.0006 inches - just a bit over 1/2 a thou. HOWEVER, I don't know anybody who uses an inch of bedding. A tenth of an inch is probably more than most bedding jobs. So the actual shrinkage is more like a half of a tenth of a thou. Conventional measuring tools cannot even measure it. In other words, shrinkage for Devcon Steel Epoxy is a zero issue. It's also important to recognize that synthetic stocks also shrink because they are also resin based. Wood stocks are far worse and I won't even begin to cover the issues. [/QUOTE]
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