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Product overview


Dayu®TPO thermoplastic polyolefin waterproofing membrane, is made of high quality TPO particlesAs the main raw material, addAdditives, extruded polymer sheets through advanced production processes.






Product Features


It has both the welding performance of a resin sheet and the aging resistance of a rubber sheet.

In the roof exposed use, life can reach more than 20 years.

Meet the cold roof design requirements, energy saving and low carbon.

Wind resistance, radiation resistance, high and low temperature resistance, good weather resistance.

Wide design, less overlap, good integrity.

The hot air welding process has the advantages of high reliability, small hidden danger, high peeling strength, homogeneous quality and service life with the base metal, and significantly improves the overall waterproof effect and durability.

High strength, excellent resistance to root stab.

No plasticizer, no chlorine, can be completely recycled, green environmental protection.




Specification classification



Homogeneous type (H)/fiber backing type (L)/reinforced fabric (P)


1.2 mm/1.5 mm//2.0 mm


1000 mm/2000 mm


20 m



Scope of application


Mainly used for single-storey factory roof waterproof.

Can be used for reservoirs, dams, pools, canals moisture-proof seepage.

Can also be used for planting green roof, pipe gallery roof, and underground waterproof engineering.




Construction process


The laying process includes coil fixing and lapping.

Fixed method has the mechanical fixed method, the full adhesive method, the empty laying pressure method. Among them, the mechanical fixing method is mainly used for industrial plant roofing.

The hot air welding technology is used to fuse the lap edges to realize the lap joint of the base metal body.






performance index


Products in accordance with the national standard "thermoplastic polyolefin (TPO) waterproofing membrane" GB27789-2011 manufacturing.

Performance indicators meet standard requirements


List of physical performance indicators of coil parts:


Indicators (Class H)

Indicators (Class L)

Indicators (Class P)

Thickness of resin layer above the middle tire base

≥ 0.4mm

Maximum pulling force



Tensile strength

≥ 12MPa

Elongation at maximum tension


Elongation at break

≥ 500%


Heat treatment dimensional change rate

≤ 2.0%


≤ 0.5%

Low temperature bending

-40 ℃, no crack

-40 ℃, no crack

-40 ℃, no crack

impervious to water

0.3MPa,2h, impervious to water

0.3MPa,2h, impervious to water

0.3MPa,2h, impervious to water

Impact resistance

0.5kg · m, impervious to water

0.5kg · m, impervious to water

0.5kg · m, impervious to water

static load resistance

20kg, no water seepage

Joint peel strength

≥ 4.0N/mm or coil failure

≥ 3.0N/mm

≥ 3.0N/mm

Right Angle Tear Strength

≥ 60N/mm

Trapezoid tear strength

≥ 250N

≥ 450N

water absorption

70 ℃,168h,≤ 4%

70 ℃,168h,≤ 4%

70 ℃,168h,≤ 4%



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