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Thermoplastic polyolefin (TPO) waterproof membrane TPOH clas

Thermoplastic polyolefin (TPO)

The thermoplastic polyolefin (TPO) waterproof membrane is a kind of vinyl resin-based material, the use of a sheet of thermoplastic rubber elastic waterproof material advanced polymer technology and specific formulation made in recent years in the United States and Europe, the prevalence of a new materials, ingredients does not contain plasticizers, there is no plasticizer migration and brittle, has a tensile strength, wear resistance, resistance to ultraviolet radiation is strong, smooth surface, high reflectivity and resistance to pollution of the integrated features, easy processing, welding, construction convenient, fully recyclable, green.

★Product type and specifications
(One)Species
Press into a homogeneous composition of the product web (Code H), with fiber backing sheet (code L), enhanced web (Code P) within the fabric。
(Two)Specification
Nominal length specifications15m、20m、25m。
Nominal width specifications 1.00m、2.00m。
Thickness specifications 1.20mm、1.50mm、1.80mm、2.00mm。



★USE
TPO waterproofing membrane used in construction and wet the exposed roofing, waterproofing and construction of underground deformable. Also applies to drinking water reservoirs, bathroom, tunnels, grain, subways, reservoirs and other waterproof projects.

★Material Properties GB27789-2011


No. Items Indicators
H L P
1* The above intermediate tread base resin layer thickness/mm        ≥ 0.4
2* Stretching&Performance Maximum Rally /N/cm        ≥ 200 250
Tensile Strength/Mpa         ≥ 12
When the maximum tensile elongation/    ≥ 15
Elongation at break %/         ≥ 500 250
3* Heat treatment size change rate/%               ≤ 2 1 0.5
4* Flexibility at low temperature ﹣40℃ No cracks
5 Impermeability 0.3MPa,2h Impermeable
6 Impact resistance 0.5kg*m,Impermeable
7 Resistance to static loading 20kgImpermeable
8 The seam peel strength/(N/mm)              ≥ 0.4Or membrane damage 3
9 Right angle tear strength/(N/mm)              ≥ 60
11 Trapezoidal tear strength/N                   ≥ 250 450
12 Water absorption(70℃,168h)/%             ≤ 4
13 Thermal aging(115℃) Time 672h
Exterior No blistering、crack、Stratified、Bonding and holes
The maximum tensile retention/% 90 90
Retention of tensile strength/% 90
Elongation retention at maximum tension/% 90
Breaking elongation retention/% 90 90
Flexibility at low temperature ﹣40℃ No cracks
14 Chemical resistance、Learnability Exterior No blistering、crack、Stratified、Bonding and holes
The maximum tensile retention/% 90 90
Retention of tensile strength/% 90
Elongation retention at maximum tension/% 90
Breaking elongation retention/% 90 90
Flexibility at low temperature ﹣40℃ No cracks
15 Artificial、climate、accelerate、Ageing Time h 1500b
Exterior No blistering、crack、Stratified、Bonding and holes
The maximum tensile retention/% 90 90
Retention of tensile strength/% 90
Elongation retention at maximum tension/% 90
Breaking elongation retention/% 90 90
Flexibility at low temperature ﹣40℃ No cracks
a Resistance to static loading only for pressing roofing coil requirements
b Monolayer membrane roofing products use artificial climate accelerated aging time of 2500h

Note:Wherein factory inspection items with *

★Construction Technology
1、Process
The base surface cleaning→Spectrum polyethylene film→Laying insulation board→Pre-coated TPO waterproofing membrane→Fasteners TPO waterproofing membrane→Hot air welding TPO waterproofing membrane→Strengthening node processing site→Inspection, repair→Organizational acceptance
2、Construction steps
(1)Clear the primary surface debris, debris.
(2)Spread a layer of polyethylene film, polyethylene film, adhesive bonding using adhesive tape.
(3) the laying of extruded foam insulation board, insulation board using special fasteners.
(4) pre-coated TPO waterproofing membrane: the TPO waterproofing membrane by elastic line control position arranged on the insulation layer, sheet laying direction perpendicular to the direction of corrugated steel sheeting, the naturally loose coil disposed in the insulation layer as outlines on. Coil remain flat straight, without distorting, lap width of 120mm, and appropriate cut.
(5) TPO waterproof membrane fixed: fasteners and gaskets along the marker lines shown at a fixed 30mm from the edges of the web roll.
(6) coil overlap: a sheet lap on another piece of the web, the fastener and the washer cover beneath the waterproof layer. Welding machine welding a lap each side, such as the need for a pneumatic double weld testing.
(7) node processing: cutting the sheet roll for the corresponding node, using a hand-held torch welding the sheets on the Omo web.
(8) TPO waterproofing membrane head close: close the first part of the pressure of the fixed employ and use the sealant.
After construction according to GB50207-2012 "Roof Engineering Quality Acceptance" or GB50208-2011 "underground waterproof project quality inspection norms" for acceptance.
 
★Storage and transportation
(One)Storage

1, coil should be placed in ventilated place to prevent the sun and rain. Storage temperature should not exceed 45 ℃.
2, different types, different specifications sheet stacked separately.
3, flat sheet stacking height should not exceed 5 layers; legislation that must be a single-layer stacking. Prohibit contacts with acids, alkalis, oils and organic solvents.
4, under normal storage conditions, the shelf-life of at least one year.
(Two)Transport
Prevent tipping or horizontal pressure, covered with tarpaulin when necessary during transport.
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