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Product overview


Dayu®SBS elastomer modified asphalt waterproofing membrane is a hot-melt waterproofing membrane composed of tire base, modified asphalt gum and surface material.


l fetal baseHigh quality filament polyester felt.

l Glial: Thermoplastic elastic rubber (styrene-butadiene-styrene) as a modifier to modify the petroleum asphalt (improve its high and low temperature performance, fatigue resistance), prepared into a dip coating gum, evenly coated on both sides of the tire base.

l Surface materialPolyethylene film, fine sandorMineral pellets.







Product Features


High tensile strength, strong tear resistance, good dimensional stability and excellent mechanical properties.

Excellent resistance to high and low temperature performance, low temperature not brittle crack, high temperature does not flow, good durability, long-term protection of waterproof ability.

Mature hot melt method construction process, molten asphalt body lap, reliable bonding, lap firmly, suitable for all seasons.

It can form a composite waterproof layer with other compatible coatings or coils to meet higher grade waterproof requirements.




Specification classification


Upper surface material

Polyethylene film (PE)/S (fine sand)/M (mineral pellets)


3.0 mm / 4.0 mm


1000 mm


7.5 m / 10 m




Scope of application


It is suitable for industrial, civil, municipal and other construction projects, including administrative, residential, commercial, scientific research, medical, school, grain depot, pipe gallery and other buildings.

Applicable to the construction of underground works, roofing works. Wherein, the surface material of mineral grains can be used for non-human roof exposed waterproof.






Basic requirements: solid, dry, no sediment, laitance, no empty drum, loose, sand and other phenomena.

Interface treatment: uniform spray (roll) coating matching base treatment agent, improve the coil and the adhesion of the base.

Trial laying of coiled material: lay the coiled material flat on the base surface, align the elastic line or the overlapping edge of adjacent coiled material, adjust the overlapping width, and rewind after standing for a period of time to release the stress.

Hot melt paving: bake the lower surface and base surface of the coil with a flame, push the roll-paving coil forward in time after the colloid is melted, and compact and exhaust while it is hot to tightly bond the coil with the base layer.

Ontology lap joint: paving and pasting synchronous rolling lap joint edge until 5~8mm molten asphalt is extruded (regarded as reliable lap joint).











performance index


Products in accordance with the national standard "elastomer modified asphalt waterproofing membrane" GB18242-2008 manufacturing.

The material performance meets the standard requirements, and the complete index is detailed in the standard.


List of basic physical performance indicators of polyester base coil:


Indicator (Type I)

Indicator (Type II)

Soluble content

≥ 2100g/㎡(3mm)

≥ 2900G/㎡(4mm)

≥ 2100g/㎡(3mm)

≥ 2900G/㎡(4mm)

Heat resistance

No flowing or dripping at 90 ℃, slippage ≤ 2mm

No flowing or dripping at 105 ℃, slippage ≤ 2mm

Low temperature flexibility

No crack at -20 ℃

No crack at -25 ℃

impervious to water

0.3MPa, impervious to water for 120min

0.3MPa, impervious to water for 120min

Pull force

≥ 500N/50mm

≥ 800N/50mm




Joint peel strength

≥ 1.5N/mm

≥ 1.5N/mm


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