Soprema Soprasun Plus 4 Mineral is a plastomeric modified bitumen waterproofing membrane (APP), manufactured by impregnation of the reinforcement with the waterproofing compound based on distilled bitumen modified with polyolefin polymers, which gives the compound excellent technical characteristics.
The composite reinforcement, made of nonwoven polyester in combination with fibreglass, conveys good mechanical characteristics, excellent dimensional stability and elastic performance. The upper surface is coated with coloured slate chips and the selvedge edge is slate-free at one side. The lower surface is coated with a thermo-fusibile polyolefin film.
