No issue with "the runs"? I had a couple dry spots the first couple times being conservative with the epoxy so no I give it a little extra for good measure.
Another diy carbon fibre stock
- Thread starter Ice-kub
- Start date
Nov 23, 2025
It has been quite some time since an update. Decided I didn't like the aluminum bedding block and instead, filled the bedding box block full of free form air mixed with 1/4-1/2" carbon fibre chop. Used xps foam blocks as the negative space for the trigger/mag wells and filled it all in. Que lots of shaping/Sanding/adding more free form air... Repeat until mostly happy.
Expoxied some 3/8" aluminum tubes in as pillars, had tape wrapped around action screws to centre in pillars when torqing action into stock.
Filled in area around bottom metal with more FFA and carbon chop. Sprayed the bottom metal with almost enough release agent... Thought I was going to have to cut it out and start over. Put it in the deep freeze for a night and hit it with a dowel and hammer from the top side at the front and back of the mag well a couple times and it let go.
Shaved/sanded more out of the top side of the action inlet and decided to attempt to bed the action now that the pillars and bottom metal were sorted.
Sprayed a ridiculous amount of release agent on the action/lug/barrel and prayed to the epoxy gods. They were merciful this time and it came out way nicer than I thought it would. (if there is a next time, I would build a carbon box as I did previously, tape off the action and fill the box with an epoxy dough/carbon chop mix and build from the centre out.)
Drilled holes in the butt end and screwed the oversized grind to fit recoil pad to it.
Figured it was in a shootable state at this point so I took it out for a test drive. Fancy paint job to come. Torqued action screws to 60 inch pounds and put my nx8 on it.
Bore sited and put the first round 1/2" low at 100, ya ya, pics or it didn't happen lol it did.
Shot 30 rounds through it and it drives nice. No visable cracks or damage, no crunchy sounds when "flexing" it to look for cracks.
Will inspect further after taking it hunting this coming weekend.
It has been quite some time since an update. Decided I didn't like the aluminum bedding block and instead, filled the bedding box block full of free form air mixed with 1/4-1/2" carbon fibre chop. Used xps foam blocks as the negative space for the trigger/mag wells and filled it all in. Que lots of shaping/Sanding/adding more free form air... Repeat until mostly happy.
Expoxied some 3/8" aluminum tubes in as pillars, had tape wrapped around action screws to centre in pillars when torqing action into stock.
Filled in area around bottom metal with more FFA and carbon chop. Sprayed the bottom metal with almost enough release agent... Thought I was going to have to cut it out and start over. Put it in the deep freeze for a night and hit it with a dowel and hammer from the top side at the front and back of the mag well a couple times and it let go.
Shaved/sanded more out of the top side of the action inlet and decided to attempt to bed the action now that the pillars and bottom metal were sorted.
Sprayed a ridiculous amount of release agent on the action/lug/barrel and prayed to the epoxy gods. They were merciful this time and it came out way nicer than I thought it would. (if there is a next time, I would build a carbon box as I did previously, tape off the action and fill the box with an epoxy dough/carbon chop mix and build from the centre out.)
Drilled holes in the butt end and screwed the oversized grind to fit recoil pad to it.
Figured it was in a shootable state at this point so I took it out for a test drive. Fancy paint job to come. Torqued action screws to 60 inch pounds and put my nx8 on it.
Bore sited and put the first round 1/2" low at 100, ya ya, pics or it didn't happen lol it did.
Shot 30 rounds through it and it drives nice. No visable cracks or damage, no crunchy sounds when "flexing" it to look for cracks.
Will inspect further after taking it hunting this coming weekend.
You definitely have to plan for how to handle runs, but I almost feel like some thinner products might reduce risk of runs because you can apply a thinner coat. Each resin is probably a little unique in how it runs
I've heard of guys mixing acetone into the resin in small percentages to achieve a thinner mix. Have you tried this?
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