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Getting epoxy down into 1/8" slot?

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Forum topic by WoodNSawdust posted 05-23-2015 02:47 PM 1194 views 0 times favorited 19 replies Add to Favorites Watch
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WoodNSawdust

1417 posts in 899 days


05-23-2015 02:47 PM

Topic tags/keywords: epoxy joinery glue question

I am repairing an antique bed frame. The headboard to toeboard rails attach with metal brackets. I had to replace the two rails. The metal bracket attaches to the wood rail by an 1/8” slot cut in the end of the rail and two metal dowels through the side of the rail.

I would like to add epoxy to the 1.5” deep slot to add additional strength. How can I get 5 minute epoxy all the way down the slot before it starts to harden?

(If it matters the wood is Red Oak and the bracket and dowels are steel.)

Thanks in Advance

-- "I love it when a plan comes together" John "Hannibal" Smith


19 replies so far

View Bill White's profile

Bill White

4735 posts in 3683 days


#1 posted 05-23-2015 02:56 PM

Dental floss (dewaxed). Work the epoxy into the slot with a back and forth motion.
Bill

-- bill@magraphics.us

View Fred Hargis's profile

Fred Hargis

4553 posts in 2216 days


#2 posted 05-23-2015 02:57 PM

Push it down there with a toothpick? That’s worked for me in some cases. Also, switch to 60 minute epoxy to give you more finagling time.

-- Our village hasn't lost it's idiot, he was elected to congress.

View MrUnix's profile

MrUnix

5619 posts in 1921 days


#3 posted 05-23-2015 02:57 PM

I don’t know about the 5 minute stuff (little twin tube syringe thingies you get at the borg?), but epoxy normally flows pretty easily. If you arrange the slot so that the opening is at the top, it will fill nicely – just make sure the ‘bottom’ is sealed so it doesn’t flow out. Painters tape can be used to seal/form the area to be epoxied. Easiest way to apply is with a syringe… you can get them pretty cheap at places like Tractor Supply or any place that sells equine supplies (and probably a lot of other places as well).

Cheers,
Brad

PS: Mixing in one of those little 1oz solo cups, like you get at the take out places, would work good for mixing the epoxy and make it easier to get into the syringe.

-- Brad in FL - In Dog I trust... everything else is questionable

View Daruc's profile

Daruc

460 posts in 855 days


#4 posted 05-23-2015 03:02 PM

Blow it in with an air hose and/or use a putty knife.

-- -

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waho6o9

7922 posts in 2299 days


#5 posted 05-23-2015 03:16 PM

chop stick pared to fit

View kaerlighedsbamsen's profile

kaerlighedsbamsen

1223 posts in 1436 days


#6 posted 05-23-2015 03:24 PM

Go to the pharmacy and ask for a syringe for flusing teeth. They have a longer tube that is not sharp and can be bent. As MrUnix said, dont use the 5 min stuff- hardens way too quickly..

Let us know how it ends!

-- "Do or Do not. There is no try." - Yoda

View Pimzedd's profile

Pimzedd

574 posts in 3526 days


#7 posted 05-23-2015 03:40 PM

+1 to kaerlighedsbamsen Use a syringe, the larger the better. I got some from a vet supply. Use the 24 hr. cure time epoxy.

-- Bill - Mesquite, TX --- "Everything with a power cord eventually winds up in the trash.” John Sarge , timber framer and blacksmith instructor at Tillers International school

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bondogaposis

4351 posts in 2074 days


#8 posted 05-23-2015 04:09 PM

For one I would use a slower curing epoxy, like one hour cure, that way you can take your time. Haste makes waste as they say. You could apply the epoxy to the bracket and the pins before inserting, that would be the easiest way to get the epoxy into the slot.

-- Bondo Gaposis

View daddywoofdawg's profile

daddywoofdawg

1017 posts in 1297 days


#9 posted 05-23-2015 05:05 PM

does the slot go all the way though?if so,place the shop vac hose under the slot,pour the epoxy in the top of the slot,the vacuum pulls the epoxy down. once it starts flowing turn the vac off or remove the hose.

View daddywoofdawg's profile

daddywoofdawg

1017 posts in 1297 days


#10 posted 05-23-2015 05:08 PM

does the slot go all the way though?if so,place the shop vac hose under the slot,pour the epoxy in the top of the slot,the vacuum pulls the epoxy down. once it starts flowing turn the vac off or remove the hose.

View Jim Finn's profile

Jim Finn

2548 posts in 2644 days


#11 posted 05-23-2015 09:48 PM

You could use a finishing resin like “Z-poxy”. It is a thin slow curing epoxy. It will flow right through a crack if it is open on the bottom. I use it to fill cracks in knots in red cedar. I put masking tape on the bottom of the crack to prevent the Z-poxy from running out.

-- "You may have your PHD but I have my GED and my DD 214"

View woodchuckerNJ's profile

woodchuckerNJ

1227 posts in 1356 days


#12 posted 05-23-2015 10:28 PM

slower cure , and if not, try a hair dryer. blowing hot air will thin it, but make it harden quicker.
if you get it to run real nicely (heat), it will easily do what you want.

-- Jeff NJ

View shipwright's profile

shipwright

7622 posts in 2520 days


#13 posted 05-23-2015 10:34 PM

Don’t use fast cure epoxy. It doesn’t have anywhere near the strength of the real thing.
If I were doing it, I would use a full cure epoxy (24 hour), thicken it to a smooth putty with an anti-sag additive like micro fibres, and place it with a plastic bag like this.

I did a blog on epoxy and handling it. It is here if you are interested.

-- Paul M ..............If God wanted us to have fiberglass boats he would have given us fibreglass trees. http://thecanadianschooloffrenchmarquetry.com/

View MNclone's profile

MNclone

192 posts in 1306 days


#14 posted 05-24-2015 02:48 AM



Don t use fast cure epoxy. It doesn t have anywhere near the strength of the real thing.
If I were doing it, I would use a full cure epoxy (24 hour), thicken it to a smooth putty with an anti-sag additive like micro fibres, and place it with a plastic bag like this.

I did a blog on epoxy and handling it. It is here if you are interested.

- shipwright


Paul, I was just looking through your blog series. That is fantastic. I’ve found some micro beads on Amazon, but can’t come up with the fiber fill. Do you have a specific product you use?

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MrUnix

5619 posts in 1921 days


#15 posted 05-24-2015 03:00 AM

-- Brad in FL - In Dog I trust... everything else is questionable

showing 1 through 15 of 19 replies

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