Torch melting Polyethylene film high-density polyethylene
Perforated Film
Description:
Torch melting Polyethylene film also called thermofusible film, burn-off film, torchable
polyethylene foil,
thermofusible HMHDPE film and torch-able film.
It is 3-layers film blowing, can be done as thin as 7 micron
thickness.
It can be done perforated performance and printed as customers'
requirements.
Make the surface of SBS/App Waterproof membranes more flate.
It is widely used as surface material for SBS Bitumen Waterproofing
Membranes and
APP Bitumen Waterproofing Membranes, it will be melt when torch
construction.
Torch melting Polyethylene film Phameter:
| NO. | Item | Unit | Factory parameter | Detection method |
| 1 | Appearance | / | | Q/TPXP1-2015 |
| 2 | Thickness | mm | 0.008-0.015 | GB/T 6672-2001 |
| 3 | Width | mm | 1060-1070 | GB/T 6673-2001 |
| 4 | Max.Fd | N/50mm | 15 | GB/T 328.9-2007 |
| 5 | Elongation at break | % | 200 | GB/T 328.9-2007
|
How to choose upper and lower cover materials for asphalt
waterproofing membrane:
For exposed roof waterproofing system ,normally we choose aluminum
film / schist / sand ..
as the upper cover material.
For special places treatment or non-exposed waterproofing works,
normally we choose
polyethylene film as the upper cover material.
But for lower cover , normally, we only choose polyethylene film
for torch melting before
sticking the membrane on basement.
Difference between upper polyethylene film and lower polyethylene
film
Although the upper and lower cover both use polyethylene film. the
process and performance
of these polyethylene film are different .
The polyethylene film which is used on the upper surface has high
requirements for flexibility
weather resistance and aging resistance due to various external
environments.Generally,it is
a high density polyethylene film . This film has good rigidity
,good heat resistance and long
service life.
The polyethylene film which is used on the lower surface needs to
be fused by torch melting
during application. so has low melting point and lower standard of
other performance requirements.
Generally,it is a low density polyethylene film. this kind film has
good flexibility,low temperature
softening and strong fluidity and performance is easy to control.
How to identify HDPE film and LDPE film :
Name | LDPE | HDPE |
Feeling | Translucent,stiff feel,sound when rubbing | Poor transparency,softer,brighter |
matte gloss | |
Burning | Flame color upper yellow below blue | Flame smokeless ,with dripping |
Stretching | White marks when tearing by hand | No white marks when tearing by hand,good tension |
FAQ:
ISO9001-2015:
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