What is LDPE?
LDPE plastic stands for low-density polyethene. The low-density polyethene consists of a soft thermoplastic with dense cells, which thus does not let air or water through.
The LDPE plastic is therefore not resilient in the same way as, for example, polyurethane foam, which contains open cells (air-filled cavities).
Thanks to the higher mechanical resistance of the LDPE plastic, it is very suitable for packaging or insulating purposes and has very good shock absorption. The LDPE plastic is resistant to both heat and chemicals, is easy to seal, colour, and relatively lightweight.
The opposite of LDPE plastic is HDPE plastic, which stands for high-density polyethene. HDPE plastic consists of narrower molecules than LDPE plastic, which makes HDPE plastic much harder and denser and with higher tensile strength than LDPE. HDPE plastic is therefore often used in the manufacture of more dimensionally stable robust vessels, such as plastic rubbish bins, water pipes or children’s toys.
HISTORY
When was Polyethene Invented?
The polymer was first prepared by mistake by the German chemist Hans von Pechmann in 1898 when he heated diazomethane. An industrially viable manufacturing process was discovered in 1933 by mistake by British chemists Eric Fawcett and Reginald Gibson at Imperial Chemical Industries (ICI) in Northwich, England.
FACTS ABOUT THE LDPE PLASTIC WE SELL
The plastic is 100% recycled and can be 100% recycled after its use.
Material type | Low Density Poly Ethylene (LDPE) | ||
Raw material | recycled LDPE plastic | ||
Material form | sheets | ||
Standard surface | smooth or with floorboard pattern | ||
Color options | all | ||
Standard colors | gray / black / white | ||
Bearbetningsmöjligheter | |||
Sawing | Yes | ||
Drilling | Yes | ||
Milling | Yes | ||
Thermoforming | Yes | ||
Mechanical characteristics | |||
DIN EN ISO | Unit | ||
Density | 53479 | g/cm³ | 0.92 |
Bullet hardness | 53456 | (N/mm2) | > 18 |
E-module bending | 53457 | (N/mm2) | > 140 |
Elongation at break | 53455 | % | < 4 |
Breaking strength | 527 | MPa | > 40 |
Point pressure (recommended maximum load) | N/A | tons | 50 (controlled by the substrate) |
Thermal properties | |||
DIN EN ISO | Unit | ||
Min./max. operating temperature | °C | -40 till 70 | |
Linear thermal expansion | 11359 | mm / m / 10 °C | 1,8 |
Melting point | DIN 53765 | °C | 104 |
Thermal conductivity (Lamda value) | W/(m*k) | 0,34 | |
Chemical and physical properties | |||
DIN EN ISO | |||
UV resistance | 10640 | N/A | OK |
Water absorption | 62 | % | < 0.01 |
All values are indication values and can vary depending on preparation methods, additives, impact from the use environment, etc. The values can thus not be guaranteed.
Characterization of chemical content in LDPE samples submitted to RISE (Research Institutes of Sweden AB) 2020-02-27
Results:
No organic compounds, heavy metals, halogens or other substances listed as SVHC (Substances of Very High Concern) are detected in concentrations above 0.1% by weight (1000 mg/kg). The analysis results show no associations that are in conflict with REACH, the list of candidates or which are listed in BASTA’s * eligibility criteria.
*BASTA
BASTA is an independent environmental assessment system for construction and civil engineering products aimed at contractors, clients/builders, property owners, architects, consultants, wholesalers and material suppliers.
Our LDPE boards receive the grade “Recommended” by the Building Products Assessment, which is the best grade on their scale of three levels.
The Building Products Assessment is a non-profit economic association that assesses and provides information on sustainability-assessed goods. Their vision is to promote the development of a non-toxic and good built environment that takes responsibility for both this and future generations. Their members today consist of architectural firms, municipalities, county councils, real estate companies, government agencies, contractors, players in the construction industry and others.
For more information about the Building Product Assessment, click HERE
Sustainability
All our plastic products are manufactured to meet the toughest emission regulations in the world. Working closely with our suppliers to meet our own strict high standards makes it easy for customers’ projects.
We use only 100% recycled plastic, and ensure that there are no contaminants that are in conflict with REACH, the candidate list or that are listed in BASTA‘s * eligibility criteria, in our plastic.
Where they are made
Our manufacturing facilities produce a complete range of core materials of the highest quality to improve both the stability and appearance of the finished panels. Only 100% recycled plastic is used in production and in addition TempoTrax® is recyclable!
We only use European manufacturing facilities that we work very closely with and are at the forefront when it comes to using the plastic that no one else wants.
Contacts
Markskydd i Väst AB
Sisjö Kullegata 8
421 32 Västra Frölunda, Sweden
Org nr: 556852-8383
+46 31 309 11 00
info@markskydd.se
Important Links
Opening hours