Is Titebond another name for PVA glue, which I use in the UK. Its full name is Polyvinylacetate (I think), it is white?
Titebond is a brand name, best known for their polyvinylacetate (PVA) wood glues. They make many different adhesives, but the PVA wood glue is what I think of when I hear "Titebond." Titebond is not the only brand of wood glue here in the USA, but they dominate the wood glue market. The wood glue bottles and their packaging colors (colours) are instantly recognizable to every woodworker in the USA. We refer to them as Titebond I, Titebond II, and Titebond III. See:
* Titebond I is basic PVA wood glue. It is yellow.
* Titebond II cures stronger, but gives a shorter working time than Titebond I. It is water resistant. It is yellow.
* Titebond III cures slightly stronger and gives the longest working time. It is waterproof. It is gray (grey).
The terms "water resistant" and "waterproof" refer to specific tests that they use. Water resistant glue is sometimes known as a "Type II glue" and waterproof glue as a "Type I glue."
Rumor or Truth about Added Yellow Color?
I have been told that Titebond I and II are actually white, but Titebond adds yellow dye. In the old days, woodworkers were used to yellow wood glue. When white PVA glues came out, Titebond added the yellow dye to maintain expectations. Now it is a tradition. Believe it or not.
In addition to Titebond I, II, and III, Titebond makes other specialty PVA wood glues such as "Extend" for longer work times, Quick and Thick, Cold Press Veneer, and others. They also sell non-PVA glues, such as Liquid Hide Glue, CA glue, Polyurethane glue, etc.
Titebond isn't that special. There are other brands of PVA wood glues available in the US, but Titebond dominates the market. (I have read that Gorilla's PVA wood glue is not as good.) I keep Titebond III in the shop and use it as my only PVA wood glue. It costs more than Titebond I and II, but glue cost is not factor in my projects. With Titebond III, I never worry that I have the "right" wood glue.