Composite stock pore filler?

[alphapygmy]

I had to open up the barrel channel a fair bit on a B&C composite stock for a carbon barrel. What's a good material to fill and seal the voids so I can paint it. I'm out in rain and snow a fair bit so hopefully something better than Bondo but not too hard to find. Thanks

 

[WSnyder]

Epoxy mixed with micro balloons mixed to a paste like consistency. Lay it down like you would bondo and sand if needed.

 

[Bc'z]

JB weld will work as well

 

[alphapygmy]

I bedded with JB so I'll just use the rest of the tubes to finish the channel. Thanks

 

[gunsandgunsmithing]

JB weld will work as well

For something like that, I use duraglass. I use thick heat shrink over the barrel and just bed the bbld action into the duraglass in the bbl channel. It sure works a lot easier than epoxy. Then take the heat shrink tube off. Do you see any issues with my process? I should add that smc resin and duraglass are compatible and use the same hardener. That lets me get the consistency I want as well as the adhesion qualities of the smc mixture.

 

[Dimner]

Epoxy mixed with micro balloons mixed to a paste like consistency. Lay it down like you would bondo and sand if needed.

Where does one get micro balloons on a small scale? I have been interested in trying some, but all I can find are industrial quantities for prices that are too expensive to tinker with.

 

[LVLAaron]

Amazon.com

15 bucks, and certainly still enough to last a lifetime.

 

[Hal]

I think Hobb Lobby has them. Use a mask.

Hal

 

[Bc'z]

For something like that, I use duraglass. I use thick heat shrink over the barrel and just bed the bbld action into the duraglass in the bbl channel. It sure works a lot easier than epoxy. Then take the heat shrink tube off. Do you see any issues with my process? I should add that smc resin and duraglass are compatible and use the same hardener. That lets me get the consistency I want as well as the adhesion qualities of the smc mixture.

Mike, you know I'm a 3M panel bonder guy at heart. Lol
Duraglass and SMC repair materials are great products for fixing composites.

To keep his repair small, economical, and simple is why I suggested JB's.
Mix a dab and apply with a single edge razor blade.

For some repairs I use this equivalent to Duraglass, it sands way easier with fewer pin holes.
With this product and 3m panel bonder I reconstructed the header panel on this Elcomino, grill mounting tabs included.
Super Charger is basically the HONEY in our fillers, works great in smoothing out products. Fiber glass resin can also be used in a pinch.

 

[Dimner]

Amazon.com

15 bucks, and certainly still enough to last a lifetime.

Thank you! I guess the term micro spheres was confusing me. I appreciate it.

 

[LVLAaron]

Thank you! I guess the term micro spheres was confusing me. I appreciate it.

Handle them carefully.

 

[gunsandgunsmithing]

Mike, you know I'm a 3M panel bonder guy at heart. Lol
Duraglass and SMC repair materials are great products for fixing composites.

To keep his repair small, economical, and simple is why I suggested JB's.
Mix a dab and apply with a single edge razor blade.

For some repairs I use this equivalent to Duraglass, it sands way easier with fewer pin holes.
With this product and 3m panel bonder I reconstructed the header panel on this Elcomino, grill mounting tabs included.View attachment 1522842
Super Charger is basically the HONEY in our fillers, works great in smoothing out products. Fiber glass resin can also be used in a pinch.View attachment 1522843

Thanks bud. It was not a trick question at all. Just wanted your opinion is all. I like it because it works so easily and fast. Lets me blend a nice even bbl channel with minimal work using the heat shrink tubing. It comes in different thicknesses and just works great imo, for creating a clean and even gap.

 

[Bc'z]

Thanks bud. It was not a trick question at all. Just wanted your opinion is all. I like it because it works so easily and fast. Lets me blend a nice even bbl channel with minimal work using the heat shrink tubing. It comes in different thicknesses and just works great imo, for creating a clean and even gap.

Sorry Mike I was misunderstanding.
I imagine the shrink tubing is the cats meow doing the barrel channel, that's a solid tip to success!!

The Upol fiber is a sweet product when you need more kitty hair, I think you'll like it's ease of use and durability.

 

[Mark W]

For something like that, I use duraglass. I use thick heat shrink over the barrel and just bed the bbld action into the duraglass in the bbl channel. It sure works a lot easier than epoxy. Then take the heat shrink tube off. Do you see any issues with my process? I should add that smc resin and duraglass are compatible and use the same hardener. That lets me get the consistency I want as well as the adhesion qualities of the smc mixture.

Where are you getting your heat shrink? I actually thought about doing this on a recent project and I didn’t find the appropriate heat shrink available at a reasonable cost.

 

[gunsandgunsmithing]

Where are you getting your heat shrink? I actually thought about doing this on a recent project and I didn’t find the appropriate heat shrink available at a reasonable cost.

McMaster Carr has it.

 

[Jonnyofalltrades]

McMaster Carr has it.

McMaster-Carr that won't ship very far.

Lower 48 only, unless you're a big industrial customer.

 

[WSnyder]

McMaster-Carr that won't ship very far.

Lower 48 only, unless you're a big industrial customer.

Try these electronics suppliers. Newark, RS, Mouser, Digi Key.

 

[Dimner]

McMaster-Carr that won't ship very far.

Lower 48 only, unless you're a big industrial customer.

greggdistributors.ca

They seem like the McMaster-Carr of Canada.

 

[Tucker65]

I use this when I need to wrap a barrel and bed the barrel channel.

Orbit 2 in. x 50 ft. 20 Mil Pipe Wrap Duct Tape 53550 - The Home Depot

Seal your piping with Orbit 2 in. x 50 ft. Pipe Wrap Tape. This PVC tape helps prevent corrosion and can be used with metal pipe or conduit in pressure-sensitive applications.

www.homedepot.com