I just did my first project with epoxy filled knots... unfortunately some portion of the knots went missing after going through the planer. My question is would my carbide inserts in the planer be damaged if I filled the knots with epoxy first?
I just did my first project with epoxy filled knots... unfortunately some portion of the knots went missing after going through the planer. My question is would my carbide inserts in the planer be damaged if I filled the knots with epoxy first?
Not at all, done it lots of times.
Thanks. Just got the planer and wantrd to err on the side of caution/fear
I mix up colored two part epoxy for missing not holes.
I also use a mix of glue and sawdust.
This week I seen professorial floor repair workers using cork for repairs.
Epoxy Might help cause lose knots and my Byrd head not like each other.
I am a newbie at the epoxy as a knot/defect filler. What seems to work for me is plane first. Then I filled with epoxy. After it cured one or two days, I carefully scraped it with a flat scraper ever so proud of the surface and then sanded the piece as usual. Seems to have worked for me. I put 3 coats of waterlox over it and it looks pretty good. Interested to see what epoxy guys who ave used it more have to say.
Cheers
john.blazy_dichrolam_llc
Delta Unisaw, Rabbit QX-80-1290 80W Laser, 5 x 12 ft laminating ovens, Powermax 22/44, Accuspray guns, Covington diamond lap and the usual assortment of cool toys / tools.
To elaborate (previous post was from my phone), for example, last year I made a run of 18 interior alder frame and panel doors. The 8/4 stock for the rails and stiles was pretty clear but in a number of cases I had to fill knots, some relatively large. I used regular slow set epoxy (12 to 18 hours for a full cure) that I dyed with transtint and sometimes added sawdust. My normal procedure was to rip and rough plane to approximate size, then fill the knots, then finish plane, rip and mill, then assemble the doors, then send them through the widebelt. No problems at all. I have a Powermatic PM180 with a Byrd head.
john.blazy_dichrolam_llc
Delta Unisaw, Rabbit QX-80-1290 80W Laser, 5 x 12 ft laminating ovens, Powermax 22/44, Accuspray guns, Covington diamond lap and the usual assortment of cool toys / tools.
Just to be clear I had complete knots and the planer destroyed them because they were unstable
Well since someone misunder stood my last post. I have turned lot of Byrd knives into tiny pieces from knots so MENT if epoxy the knot before feeding to planer it would not be as likely to turn the Byrd cutters into flying srapnel.
Last edited by eugene thomas; 12-07-2018 at 9:36 PM.
If I have a loose knot, just knock it out, then later after the board is planed I fill it with bondo. To color, just take a magic marker and color it before finishing. Tried dieing, did not work. Can you color epoxy?
I used black acrylic paint(post planing) to colour my epoxy with no problems.
Yes- you can buy dyes made for coloring epoxy, but you can mix graphite powder, a TINY dab of acrylic paint (test first- works with west system and by tiny I mean a drop or two), or photocopier toner. I've done all of the above many times to make black epoxy for gluing in black surfboard leash cups and fin boxes. I have used colored toner from laser jet printers to color the hot coat on surfboards.
Magic marker-even permanent kind- will bleed when wet out with epoxy and many clear coats.
I recently ordered cement coloring pigment powder off amazon for cheap. I wanted just pure pigment, no binder that might inhibit epoxy cure, and sure enough it works awesome. Needs to be dispersed well, so I take some resin and grind it with a spatula on scrap glass to really mix it in a concentration, then add that to rest of batch of epoxy and continue mixing. I've done black, white, and yellow iron oxide - all works great, doesn't affect cure. I have used graphite alot, but it is gray, and I need deep black, so went with the raw pigment.
john.blazy_dichrolam_llc
Delta Unisaw, Rabbit QX-80-1290 80W Laser, 5 x 12 ft laminating ovens, Powermax 22/44, Accuspray guns, Covington diamond lap and the usual assortment of cool toys / tools.