@Helen: I'm not sure if he used egg tempura, it's entirely possible, there are a lot of places on the painting where he could have employed egg tempura (all the haloes and anything with golden light)

@Chiqita: He died a pretty long time before Tintoretto's last supper was finished but I don't think he would have been offended, even he couldn't try to make biblical scenes his possessions.

@Blindcynic: It was painted on canvas and is still housed in the Basilica di San Giorgio

@Lara: Tintoretto painted many other biblical scenes including the death of st mark and finding of his body, and the moving of his body.  None of these are particularly well known but they are pretty good.

@stephkagan: He used as few materials in his work like paint because artists at the time had to make their own paint.  In an effort to save time and effort, as well as some money on paint, he liked to use less paint.  I don't know how often he did this, buthe earned himself a reputation for it.