Premier Mastic Asphalt

System Benefits

System Benefits

The polyester reinforcement encapsulated between the TPO top and bottom layers provides Sure-Weld membranes with extremely high tensile and tear strength capabilities together with excellent puncture resistance.

Sure-Weld TPO is available in widths of 1.5, 2.4, 3.0 and 3.6 metres in grey, dark grey or white finish.

A fleeceback version is also available for fully adhered systems.

  • Suited to new or refurb applications
  • Environmentally considerate alternative to PVC
  • May be recycled
  • BBA certification
  • Factory Mutual and UL approved
  • Excellent puncture resistance
  • Excellent low temperature flexibility
  • Good chemical resistance FAA fire rating available
  • Solvent free welding system
  • Sheet width up to 3.6m metres/rapid installation
  • Full Design assistance
  • Compatible with bituminous substrates
  • Full warranty package
  • Easily repaired
TPO Layers

PHYSICAL PROPERTY

TEST METHOD

PROPERTY OF
UNAGED SHEET

PROPERTY OF
AGED SHEET

Tolerance on Nominal Thickness %

ASTM D 751

10

No change

Thickness over Scrim, mm

ASTM D 4637
Optical Method

0.381 10%

No change

Solar Reflectance (Albedo X 100), %

Solar Spectrum
Reflectometer

White – 75 min
87 typical

Average – 71
After cleaning – 83.5

Breaking Strength, kN

ASTM D 751
Grab Method

1.0 min
1.5 typical

1.0 min
1.5 typical

Elongation at Break of Fabric

ASTM D 751

25 typical

25 typical

Tearing Strength, N 200mm x 200mm Specimen

ASTM D 751
B Tongue Tear

245 min
578 typical

245 min
578 typical

Low Temperature Flexibility, C

MOAT 27:5.4.2

-20 C

-20 C

Dimensional Stability, %

MOAT 27:5.1.6.1

N/A

Longitudinal 0.26
Transverse 0.03

Ozone Resistance, 100 pphm, 168 hrs

ASTM D 1149

No Cracks

No cracks

Resistance to Water Absorption after 7 days immersion 70%
Change in mass, %

ASTM D 471

N/A

4.0 max
2.0 typical

Resistance to Microbial Growth,
Rating (1 very poor, 10 no growth)

ASTM D 3274

N/A

9 - 10 typical

Field Seam Strength, N 50mm

MOAT 46.6P

229

179
239 (Joint made with exposed membrane)

Water Vapour Permeance, Perms

ASTM E 96
0.05 typical

0.10 max

No change

Puncture Resistance N

FTM 101C
Method 2031

1110 min
1330 typical

1110 min
1330 typical

Resistance to Xenon-Arc Weathering Xeno-Arc, 5040KJ/m Total Radiant Exposure, Visual Condition at 10X

ASTM G 26
0.7 W/m

N/A

No Cracks
No loss of breaking or
tearing strength