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Self adhesive bituminous ground waterproofing membrane
It 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 antisticking layer. According to different upper surface, it can be three types: HDPE film surf-acing (SAM-920PE), Aluminum foil surfacing (SAM-920AL) and Non-film surfacing (SAM-920N). There have three kinds of thickness: 1.2 mm, 1.5 mm and 2.0 mm.
Underground;
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-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.
Standards
ASTM D1970
Item | Requirement | Test method | |
Thickness, mm | ≥1.0 | ASTM D 751 | |
Maximum load, kN/m | Longitudinal | ≥4.4 | ASTM D 412 |
Transverse | ≥4.4 | ||
Peel strength | 1576 N/mm | ASTM D 903 | |
Flexibility temperature | -29℃ | ASTM C 836 | |
Tear resistance | Longitudinal | ≥89 N | ASTM E 154 |
Transverse | ≥89 N | ||
Moisture vapor permeance | ≤5.7ng/Pa.S.M.2 | ASTM E 96 | |
Sealability around nail | Pass | - | |
Waterproof integrity after low temperature flexibility | Pass | - | |
Waterproof integrity of lap seam | Pass | - | |
Slip resistance | Pass | - | |
SAM-920 material is packed in rolls with plastic bags or cartons.
Thickness | Roll Size | Rolls / Pallet | Pallets / 20’ Container |
1.2 mm | 20 m2 | 25 | 20 |
1.5 mm | 20 m2 | 23 | 20 |
2.0 mm | 15 m2 | 23 | 20 |
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.
Yuhong adhesive waterproof system includes substrate, primer, membrane waterproof underlayment, protection layer.
Yuhong 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.
Priming
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 on protection layer
After membrane laying, apply on protection layer according to waterproof layer design.
