A part used tub of Mapei Ultrabond Eco VS90 Plus HT Vinyl/Rubber Flooring Adhesive I recently bought this to lay 8m2 of Altro safety flooring in my campervan. I don't know the nett weight of the contents but the gross weight of the tub is currently 2.7kg (i.e., including the tub). I estimate that I have used less than half (c.2.4kg) based upon the manufacturers instructions of 300gsm/m2.Manufacturer DescriptionsMapei Ultrabond Eco VS90 Plus HT Vinyl/Rubber Flooring Adhesive Easily Trowellable PasteNon-FlammableSolvent-FreeNon-StainingContains No Toxic Substances