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Rifles, Reloading, Optics, Equipment
Gunsmithing
Bedding?
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<blockquote data-quote="Hired Gun" data-source="post: 548307" data-attributes="member: 1290"><p>The reason most rifle builders use Marine Tex over Devcon is the Marine Tex Grey is a lot harder supporting 13,000 psi in compressive strength. Devcon will only support 8620 psi. This is one of the most important qualities for a bedding compond. In most other qualities like chemical resistance the Devcon is equal. Devcon requires 7 days to cure at 75 degrees where Marine Tex cures in 24 hours at 72 degrees. For the professional gunsmith the cure time can be a real issue when working with deadlines. </p><p></p><p>In the past I have had troubles with brittleness or shrinkage but since I started mixing it by weight those issues are history. I attibute the problems I was having to inconsistant mixing ratios trying to eyeball 5-1. The correct ratio by weight is 6.3-1.</p></blockquote><p></p>
[QUOTE="Hired Gun, post: 548307, member: 1290"] The reason most rifle builders use Marine Tex over Devcon is the Marine Tex Grey is a lot harder supporting 13,000 psi in compressive strength. Devcon will only support 8620 psi. This is one of the most important qualities for a bedding compond. In most other qualities like chemical resistance the Devcon is equal. Devcon requires 7 days to cure at 75 degrees where Marine Tex cures in 24 hours at 72 degrees. For the professional gunsmith the cure time can be a real issue when working with deadlines. In the past I have had troubles with brittleness or shrinkage but since I started mixing it by weight those issues are history. I attibute the problems I was having to inconsistant mixing ratios trying to eyeball 5-1. The correct ratio by weight is 6.3-1. [/QUOTE]
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