As a mostly self-taught plasterer, I'm never absolutely certain as to what extent my mixing proportions of plaster:water are correct. Most times the mix is Ok but at other times it ends up too stiff. Could someone please advise so that I can do some calibration?
What I'd appreciate knowing are optimum volume (litres) and weight (Kg) of plaster per (say) 5 litres of water for
(1) British Gypsum Thistle Multifinish plaster
(2) Thistle Bonding Coat
Both litres and Kg would be appreciated as a cross check.
I've checked the BG web site but couldn't see anything relevant.
Thanks for any info.