Ceruse finish

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Jonrezz
Posts: 84
Joined: Thu Feb 13, 2020 1:14 pm

Ceruse finish

Post by Jonrezz »

Anyone ever try a “ceruse finish” on their veneer skis or boards? Like this guitar:

https://www.reddit.com/r/Luthier/s/PgiC1uDit0

If you have, I would love to see your pics and hear your experiences and/or tips. I love the look. My thought is to do the finish on the veneer before pressing so the epoxy doesn’t seal the grain, and maybe use paper backed veneer because it’s a bit thicker and sturdier than the unbacked I usually buy. I have no clue if the grain will be deep enough on veneer though. I imagine the other challenge will be keeping the finish nice during post-press shaping, sanding, sharpening, etc..

Anyway, I’m gonna give it a shot one of these days. I’ll post my experience over in journals.

Cheers!
Wheatlpa
Posts: 75
Joined: Fri Feb 12, 2016 11:14 am
Location: Sutton, QC

Re: Ceruse finish

Post by Wheatlpa »

I have a feeling that the veneers we use (or at least the ones I use) are way too thin for this type of treatment. I suspect that even the paper backed types would also be too thin, and this is from experience having sanded through the veneer on a woodworking project several years ago. If you do attempt this I would love to hear about the results.

However, I do like your idea of 'finishing' the veneer before pressing but I wonder if that would impact the flexibility of the veneer or its adhesion to the ski...definitely worth experimenting on my next pair.
Jonrezz
Posts: 84
Joined: Thu Feb 13, 2020 1:14 pm

Re: Ceruse finish

Post by Jonrezz »

so I haven't purchased anything specifically for ceruse yet ($100 for a kit https://guitarkitfabric.co.uk/products/ ... ffect.html) but I'm really curious about the feasibility so I dug around the shop and tried a proof of concept using stuff I have laying around -

the veneer sample is this stuff:
https://www.veneersupplies.com/products ... 2-x-4.html

the green pigment is specially formulated for epoxy compatibility (usually use it for colored sidewalls)

the wire brushes are ancient, I think the previous homeowner left them here.. I also had a little screwdriver brush that I mainly ended up using

I wasn't confident about using latex paint for the black - concern would be that it would fill in the grain because it's thick? maybe I could mix it with some paint thinner? dunno - maybe I'll try that on the other half - so I used ebony stain..

Image

Image

Image

at this point I realized I made a mistake.. I had to put a little paint thinner on a paper towel to get the dye to wipe off the black parts and it was taking the black with it. I forgot to do the seal coat before grain filler which probably would've been important for protecting the black from the paint thinner..

Image

here's the end result - I think it's definitely feasible! the brushed grain was deep enough to retain the green dye! I imagine it would look a lot better using the correct type of paint, brushes (or spraycans?), sealers, grainfiller (also in a brighter green), etc.

the next question is will it bond well with epoxy.. the paper did absorb some stain, mainly around the edges of the veneer, but I imagine if I rough up the paper backing with some coarse sandpaper it'll more than likely stick

I think the next step is to order a proper ceruse kit, follow the instructions and see!
gav wa
Posts: 383
Joined: Tue Feb 18, 2014 8:58 pm
Location: Perth

Re: Ceruse finish

Post by gav wa »

The image of that guitar finish looks like the veneer still has texture in the grain. If you want the same you can put a thin compressible layer above your board during layup.
I've used 2mm think flooring stuff, it's like a firm rubber. It has just enough give to let the grain keep some shape, so you can feel the grain not just see it
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