Black filler.

UKworkshop.co.uk

Help Support UKworkshop.co.uk:

MikeG.

Established Member
Joined
24 Aug 2008
Messages
10,158
Reaction score
672
Location
Essex/ Suffolk border
CHJ":ipqub6tn said:
If you have Cascamite, try mixing a few drops of stain in with the powder before the water.

I use Light Fast Spirit stains, despite seemingly incompatible, the volatiles evaporate rapidly and don't appear to affect the final bond significantly.

Thanks Chas, I'll give that a try too.
 

Robbo3

Established Member
Joined
28 Jan 2012
Messages
2,410
Reaction score
830
Location
Oxfordshire
Wood turners now have a choice of black superglue, rather than clear superglue & shavings, to fill cracks.
 

ED65

Established Member
Joined
3 Dec 2015
Messages
3,593
Reaction score
3
Late to the thread Mike but wouldn't a filler that goes into nooks and crannies by itself, and self-levels, be better for this application?

Milliput is good stuff for certain things but it's known for being a right pain to mix cleanly – you're going to want to use gloves, and you won't like how much of it sticks to them – and it's actually painful to mix in cold conditions it's so stiff, unless you get stuff that's exceptionally fresh.
 

ColeyS1

Established Member
Joined
2 Nov 2009
Messages
4,244
Reaction score
26
I used some black stuff that came out of a silicone tube and was very impressed. It's used as caulking between boat decking boards. It goes as hard as an eraser- so still a bit flexible. Once hardened you can plane or sand it as normal. I could try and find the tube if you were interested?

Earlier I watched a video where they filled the deepest of cracks with wooden offcuts just so they didn't need to use as much resin.

Sent from my SM-G960F using Tapatalk
 

MikeG.

Established Member
Joined
24 Aug 2008
Messages
10,158
Reaction score
672
Location
Essex/ Suffolk border
I was planning to use PU glue in the bottom of the middle sized cracks, to seal things up before the epoxy goes in, and maybe even some expanding foam in the larger cracks, carefully controlled with a foam gun. Or, I could just stuff newspaper in.

I think the filler is going to need to set properly hard as it's a table top. It could mess up the finish if there is any flex.
 

MikeG.

Established Member
Joined
24 Aug 2008
Messages
10,158
Reaction score
672
Location
Essex/ Suffolk border
Does anyone know about planing epoxy? I mean with a machine, not a hand plane. Does this stuff up either the epoxy or the blade? What if there is brass in the epoxy?
 

Rich C

Established Member
Joined
22 Aug 2019
Messages
458
Reaction score
87
Location
Manchester
I'd echo the Milliput viewpoint - it's the texture of plasticine which can be awkward if you need it to flow. It's also a dark grey rather than a true black.

I have some of this: https://www.easycomposites.co.uk/#!/res ... gment.html
It mixed with clear epoxy to give a hard glossy jet black.

Re: planing, I can't see any reason it would be an issue for the epoxy, but it might be an issue for the machine. That said, it tends to powder and flake rather than gum in my experience. Brass should be no problem for a steel cutter I'd think.
 

MikeG.

Established Member
Joined
24 Aug 2008
Messages
10,158
Reaction score
672
Location
Essex/ Suffolk border
I've tried the Milliput, and it's OK (there's a photo in the Bog Oak Coffee Table thread). However, I doubt it is the answer for the large cracks I've got to deal with, so I've ordered some epoxy, and some additives (black, and brass powder). I'll experiment.
 

NickM

Established Member
Joined
6 Mar 2019
Messages
374
Reaction score
135
Location
Hampshire
ColeyS1":329w5o12 said:
I used some black stuff that came out of a silicone tube and was very impressed. It's used as caulking between boat decking boards. It goes as hard as an eraser- so still a bit flexible. Once hardened you can plane or sand it as normal. I could try and find the tube if you were interested?
Sent from my SM-G960F using Tapatalk

This sounds a bit like sikaflex (also goes by other names)? I've used it as an adhesive for some of the car bodging (aka as building a kit car) that I've done. As you say, it stays rubbery so would not be sandable. Also, if you get it anywhere it's not supposed to be you will not get it off...
 

ColeyS1

Established Member
Joined
2 Nov 2009
Messages
4,244
Reaction score
26
That name does ring a bell although I was able to work it with sandpaper afterwards.

Sent from my SM-G960F using Tapatalk
 

ManowarDave

Fighting the World
Joined
31 Jul 2018
Messages
98
Reaction score
38
Location
Worcester
Hi Mike,

Sorry, a bit late to the party.

We use this product at work for potting electronics. Sets to a jet black gloss. Can be machined and sanded easily although the surface greys but can be bought back to black by coating in a clear compound/polish of your choice.

I've used it for all sorts including filling and glue ups. :oops:

https://uk.rs-online.com/mobile/p/potting-compounds/1991402/

Dave
 
Top