Description
TPO is a waterproofing sheet, consisting of thermoplastic polyolefin compound resin materials as the base stock, reinforced with polyester mesh fabric. There have two kinds of thickness: 1.2mm and 1.5mm.
Where to use
1>Various roofing waterproof projects, such as industrial and civil buildings, public constructions;
2>Mechanically attached waterproofing system.
Advantages
1>Weather resistance and durability;
2>Excellent weld ability;
3>No any crisp agents to prevent materials brittleness;
4>Intermediate enhanced polyester mesh fabric to have high tensile strength, fatigue resistance and penetrating resistance suitable for mechanically attached roofing systems;
5>Excellent the same high and low temperature resistance as rubber materials which can keep flexible at -50° C and keep mechanical strength in high temperature;(-60° C----130° C)
6>Excellent chemical resistance to acids, bases, and restaurant exhaust emissions;
7>Dimension stability;
8>White-based light-color and smooth surface with high reflection, energy saving and anti-dust functions;
9>Use heat welding for the seam areas to form a reliable seamless waterproof layer.
Standards(ASTM D6878)
Typical properties
Have three type :
type I: no reinforced and surface no non-woven fabri
no. | item | requirement |
1 | Tensile strength,MPa | ≥12 |
2 | Elongation at reinforcement break,% | ≥500 |
3 | Rate of change of heat treatment size,% | ≤2.0 |
4 | Brittleness point, max, °C | -40°CNo crack |
5 | Impermeability | 0.3MPa,2h Impermeable |
6 | Puncture resistance | 0.5kg.m Impermeable |
type II: surface have non-woven favric
no. | item | requirement |
1 | Tensile strength,N/CM | ≥200 |
2 | Elongation at reinforcement break,% | ≥250 |
3 | Rate of change of heat treatment size,% | ≤1.0 |
4 | Brittleness point, max, °C | -40°CNo crack |
5 | Impermeability | 0.3MPa,2h Impermeable |
6 | Puncture resistance | 0.5kg.m Impermeable |
type III: Internal reinforced(with tread base)
Item | Requirement | Test Method | ||
Thickness, min, mm | Sheet-overall | ≥1.0 | ASTM D6878 | |
Coating over fabric or scrim, weathering side only | ≥0.305 | ASTM D751 | ||
Breaking strength, min, N | ≥976 | ASTM D751 | ||
Elongation at reinforcement break, min, % | ≥15 | ASTM D751 | ||
Tearing strength,min, N | ≥245 | ASTM D751 | ||
Brittleness point, max, °C | ≤-40 | ASTM D2137 | ||
Ozone resistance | no cracks | ASTM D1149 | ||
Properties after heat aging | Breaking strength, % min | ≥90 | ASTM D573 | |
Elongation at reinforcement break, % min | ≥90 | ASTM D573 | ||
Tearing strength, % min | ≥60 | ASTM D573 | ||
Weight change (mass), max % | ≤±1 | ASTM D573 | ||
Linear dimensional change, max, % | ≤±1 | ASTM D1204 | ||
Water absorption, max, mass % | ≤±3.0 | ASTM D471 | ||
Factory seam strength, min, N | ≥290 | ASTM D751 | ||
Weather resistance |
TPO waterproof membrane,Polyolefin thermoplastics waterproof material