What for the gold paper?
It was a PH balanced wheat based paste (ready mixed)
The problem with metallic woven papers is that you need to control the amount of moisture in the paper. The paper backing will expand at a greater rate than the metallic printed surface making the paper curl as soon as it is pasted. By using a PH balanced (will not stain the print either from getting on the front or by seeping through from the backing paper) wheat based (has lower water content than other types of paste) it becomes easier to hang. The lining paper was needed so it drew out the paste and set the seams quicker (this wouldn't have happened if we sized the liner after it was installed, it is much better to leave it unsized as you reduced some of it's properties by doing so), the paste can also get a much better bond to the lining than if it was applied directly to a plaster wall. Also the liner reduced the tension on the wall itself. That paper is still under tension today as it is still trying to shrink back to it's pre expanded state. Over time the paint it was stuck to would have failed and the paper split at the seams, the lining paper also works in a similar way to a decoupling membrane (although not in exactly the same way), so no split seams even 10 years later.
There is nothing wrong with solvite packet paste but it is only suited to certain types of paper, we use it for maybe 1 in 10 papers we hang.
