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Wood Stabiliser

Solution to stabilise fragile wood

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Colin LLoyd 105/07/2019 12:28:40
4 forum posts

I want to work with cross-sections of wood comprising bark, sapwood and heartwood. The transition between the sections is often fragile especially between bark and sapwood. Is there a preparation (either commercial or DIY) that will stabilise the wood texture without greatly altering the properties of the wood - notably colour and grain pattern.

In my scrollsaw work I often "paint" the prepared wood I am to use with diluted Melamine lacquer to provide a better cutting edge that doesn't splinter. I have tried this with the bark/sapwood interface - but the wood absorbs so much.

Just wondered if there is a better solution (pun not intended) out there.

Ron Davis05/07/2019 19:32:20
1619 forum posts
201 photos

Sorry I cant help you with the stabiser, although I believe Cprinol does a wood hrdener.

Thanks for the scrollsaw tip, i had not thought of that


Colin LLoyd 106/07/2019 12:05:48
4 forum posts

Hi Ron,

Thanks for the Cuprinol tip - I will investigate.

With regards to the scrollsaw - this is most effective on plywood scrollsaw work. I usually partially finish the plywood before I even start cutting. By this I mean - sanding down the top surface, grain filling, re-sanding top surface, then use the diluted melamine lacquer on both top and bottom surfaces. This then means I don't have to worry about finishing the delicate cutouts and bridges of the final design. I can just brush on full strength lacquer to finish.

Cedric Wheeler18/07/2019 21:53:15
154 forum posts
31 photos

Hi Colin

Cuprinol Wet Rot wood hardener is what you require. I have used this for years, it is a clear liquid so will not stain the wood. You need to put it on with a brush but the trick is to keep putting it on until the wood is saturated and will not absorb any more. Leave overnight to dry or longer if possible. It does what it says and sets hard and therefore stabilises the timber. I also use it to stabilise hair cracks when turning bowls etc.

I have also used it to recover blown chipboard that has absorbed water eg kitchen cupboard doors. let the board absorb as much hardener as possible then cover area with plastic and clamp firmly to squash the chipboard (or MDF) back to original size, then leave to harden.

Hope this helps.

Colin LLoyd 119/07/2019 11:11:04
4 forum posts

Thanks Cedric - that's what I need. However - I can't seem to source this product - neither Amazon or ebay have entries. Even the UK Cuprinol website does not appear to list it and phoning the Cuprinol UK technical advice gave the reply that they haven't produced this product for many years - mainly because there are many types of wet rot and the product didn't quite deal with all of them.

Ronseal do a Wet Rot Wood hardener which seems to be available everywhere - but one video seemd to indicate that it darkened the treated wood. It seems to be an acetone solvent based resin that replaces the wood moisture with resin. Have you truied the Ronseal version? Tetrion also seem to do a similar product.

Cedric Wheeler19/07/2019 15:57:02
154 forum posts
31 photos

Hi Colin

My mistake, the one that I am using is Made by Ronseal. I don't think that you will have any problem with excessive darkening of the timber. It is an almost clear liquid & in my experience there is no difference after applying than if you had used white french polish.

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