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Self-adhesive rubber asphalt roofing waterproof membraneSelf-adhesive rubber asphalt roofing waterproof membraneSelf-adhesive rubber asphalt roofing waterproof membrane

Self-adhesive rubber asphalt roofing waterproof membrane

  • Min. order Quantity: 2000 Square meters
  • Supply Ability     : 1500000  Square meters/month
  • Port               :QINGDAO PORT
  • Payment Term       :L/C,T/T
  • thickness          : 1.2m,1.5m,2.0m
  • width              :0.98m-1.05m
  • length             :10m-20m


Self Adhesive Rubber Bitumen Waterproof Membrane


SAM-920 is a modified bitumen base sheet consisting of styrene-butadiene-styrene (SBS)compound modified asphalt covering with different upper separated materials, no fiber and underside with silicone anti-sticking layer. According to different upper surface, it can be threetypes: HDPE film surf-acing (SAM-920PE), Aluminum foil surfacing (SAM-920AL) and Non-filmsurfacing (SAM-920N). There have three kinds of thickness: 1.2 mm, 1.5 mm and 2.0 mm

Where to use

Swimming pools, fire pools and reservoirs;

Subways or tunnels;

Open fires forbidden construction areas;

SAM-920PE can be used in non exposed roofs and undergrounds;

SAM-920AL can be used in all kinds of exposed roofs;

SAM-920N can be used as an auxiliary material or bonding material between two incompatible places.


Self adhesive, safe and environment-friendly;

Excellent flexibility in low temperature and elongation;

Strong adaptability for substrate shrinkage, deformation and cracks;

Strong self healing ability for penetration and cracks;

Lasting bonding and sealed performance

Excellent water resistance.


SAM-920 material is packed in rolls with plastic bags or cartons.


Roll Size

Rolls / Pallet

Pallets / 20’ Container

1.2 mm

20 m2



1.5 mm

20 m2



2.0 mm

15 m2



Above quantities are indicative only. We can produce it according to your demands.

Storage and transportation

SAM-920 material should be stored in well-ventilated shade place and protected from sun or rain. The temperature in stored places can not be higher than 50° C. It can not be put in more than two levels. If packed by cartons, it can not be put in more than five levels.

Application system

Dongsheng adhesive waterproof system includes substrate, primer, membrane waterproof underlayment, protection layer.

Dongsheng also provide a complete line of compatible accessories and components, including primers, pipe clamps, terminal battens and screws.

Surface preparation

Surfaces should be dry, clean, smooth and free from any dusts, oil or loose particles. Cracks and uneven places need to be filled by polymer mortar.


Before membrane laying, substrate treating agent need to be brushed evenly and completely cover all laying places.

Membrane laying

After substrate treating agent drying, lay SAM-920 material according to application designs.

Sealing, fixing and constraining on vertical surfaces

On vertical surfaces, fix with metal battens and seal with sealants for membranes.

Application of protection layer

After membrane laying, construct the protection layer according to waterproof layer design.





Weifang Dongsheng waterproof material Co.,Ltd


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