Why waxed thread?

[Swede]

Hello!

I'm new to the art of bookbinding and have a small simple question: Why should I use waxed thread? What is the reason for it? After what I understand it's easier to keep the thread tight if it is waxed, but is this the only reason?

/Swede

[DanielCoffey]

It helps prevent the thread from tangling when you sew the signatures too.

[edenworkshops]

The wax also prevents adhesive from penetrating the fibres of the sewing thread.

Richard

[Shea_M]

Waxed thread is also handy for sewing endbands which you intend to age with a little dust from your work area.

[bookbum]

All of the above are true but, in my experience, it depends on the type of wax you're talking about:

For bee's wax - a little sticky
It helps prevent the thread from tangling during sewing.
It helps prevent adhesive from penetrating the thread.
Another important feature is that waxed thread helps 'lock' the thread in place during sewing, keeping the previous stitches tight while you move on.

Paraffin based wax - slippery
Used as a lubricant to make the awl produce holes easier
On endbands, it helps keep them clean and makes them easier to clean.

[Jer]

Not sure but I was told the wax helps keep the thread from tearing through the pages as the book is used over time.