Outstanding performance torch-on waterproofing elastomeric membranes showing exceptional properties on any structure subject to cyclic movements or considerable dimensional variations.

Compound: Distilled bitumen modified with high percentage of SBS elastomeric polymers that ensure excellent properties of adherence, elasticity and extreme flexibility at low temperatures. Due to the chemical properties of thermo-plastic rubber, the membrane should be protected against direct sunlight which triggers a process of early aging.

Reinforcement: Continuous non-woven SPUNBOND polyester (EP series) or strengthened glass fibre (EG series) with a high mass per unit area, Elastoper guarantees outstanding mechanical performance and dimensional stability.

Surface Finish: Silica sand, aluminum, self protecting natural or colored slate chippings distributed uniformly and firmly anchored.

Areas of use: Exceptional performance in applications requiring above average resistance to repeated thermal mechanical action. Metal, prefabricated flat, curved or saw tooth roofs subject to cyclic movements or considerable dimensional variations. Also widely used in underground tanking to waterproof basements and foundations, especially in areas with high humidity in the ground or close to the sea.

Product Advantages: Guaranteed by more than 25 years in the field, excellent aging properties, extensive thermal operating range (-20/+100), versatile and reliable at any latitude, fast and easy to apply even on structures with complex shapes.


ElaSTOPER Series by Thickness


EG 2

EG 3

 EP 3

EP 4 EP 3S* EP 4S* EAL2 EP3 AL EP4 AL EP3 F* EP4 F*
Reinforcement   GlassFiber GlassFiber Polyester Polyester Polyester Polyester Aluminum Polyester Polyester Polyester Polyester
Thickness mm 2 3 3 4 3.5 4.5 2 3 4 4 4
Flow Resistance °C 100 100 100 100 100 100 100 100 100 100 100
Cold Bending °C -20 -20 -20 -20 -20 -20 -20 -20 -20 -20 -20
Tensile Strength (N/50mm) (md/cmd) 400/300 400/300 800/600 800/600 800/600 800/600 NA 800/600 800/600 800/600 800/600
Elongation % (md/cmd) 2/2 2/2 35/35 35/35 35/35 35/35 NA 35/35 35/35 35/35 35/35
Upper Surface Coating   PE PE PE PE Slated Slated PE Aluminum Aluminum Fine Sand Fine Sand


EG2  EG3  EP3  EP3AL  EP4  EP40A  EP50A

Available Colors

Technical Datasheets (PDF)