Over the last 5 years or so the woodworkers at the IRM have developed some glue solutions I thought I would share.
For those of you out there having to deal with old spongy wood you may have already used PC-ROT TERMINATOR. A two part clear liquid similar to casting resin. Excellent for soaking into soft wood on the verge of crumbling. Nice long cure time as a paint, up to a day or two at temperatures below 60 deg. F. A few hours if let stand in a cup.
www.pcepoxy.com/products/wood-repair/pc-rot-terminator/

From the same company a two part putty that can be used to fill voids.
www.pcepoxy.com/products/wood-repair/pc-woody/
Nice in the fact that it will not get too hard or brittle. Can be filed, chiseled etc. very much like hardwood. At 70 F it sets up much faster, starts to get hard to work in around 45 min.

The thing we have found to be exceptionally useful is that the two products are compatible. That is after you correctly mix both, they can then be mixed together to get any viscosity you like.
Around 6 years ago we started having trouble getting the same Resorcinol glue. Some substitutes and “new formulas” we found to be week and very brittle. As we use it heavily for sash and door rebuilding we started experimentation with the two PC products mentioned.
Mixing up the putty then adding the liquid to get something like thick pancake batter worked great as a mortise and tenon glue. Painting the liquid on the joint surfaces first as sort of a primer a few min. prior to buttering the joint with the “batter” seems to help adhesion.
Loose tenons at the bottom of existing windows are re set by drilling a few small holes and injecting a mix the consistency of honey into the joint before re-clamping. We found some large disposable syringes at the local farm and barn store for that.
The liquid is often also added a little to the putty to extend the working time. I use a mortar board and have the straight putty and liquid available while fixing older wood things to do both work. Clean up tools etc. with denatured alcohol.
Anyone else out there using epoxy for building wood windows and doors?

Wood restoration epoxy is nothing new, we have been using this in the restoration field for years, great product;

https://www.abatron.com/product-categor ... intenance/

Rio Vista is fond of West System epoxy, a "swiss army knife" product with many additives to turn it into almost anything. It comes with "pumps" so 1 squirt of A-part and 1 squirt of B-part gives you the correct mix, and costs about 75 cents. The far cheaper B-part comes in several speeds of cure. Naturally, it mixes about like pancake syrup, and you can thicken it to suit with several kinds of fillers ranging from sanding fillers (yielding bondo) to dense adhesive fillers. West System is also suitable for fiberglass layup. Can hardly imagine a shop without it.

What it cannot make, however, is a rotted wood penetrating epoxy; runny Git-Rot is the go-to there.

Rio Vista also actively uses Abatron or AwlFair (Awlgrip's version) as a fairing filler (bondo) for wood. On bare wood, I prefer the first coat rather moist so I can get some soak-in. So I either mix West System moist, or do a pre-coat of with Git-Rot or Awlgrip 545 primer.

A professional wood restorer I met uses Smith's Clear Penetrating Epoxy Sealer to stabilize rotten wood, and follows up with West Epoxy as a filler.

http://www.smithandcompany.org/

[quote="Al Stangenberger"]A professional wood restorer I met uses Smith's Clear Penetrating Epoxy Sealer to stabilize rotten wood, and follows up with West Epoxy as a filler.

[url=http://www.smithandcompany.org/]http://www.smithandcompany.org/[/url][/quote]

I have been around boats for years and the choice in the marine industry is products from "Total Boat". Smith's has a following but so does Total Boat penetrating epoxy.

For you guys painting wood cars there are two excellent paints available. For new or stripped wood you can use Linseed oil paint, http://www.solventfreepaint.com/

If you would like the real oil based paint and not the horrendous reformulated stuff, Proline makes and sells the good stuff. https://www.sherwin-williams.com/homeow ... pl-9529675