PE-RT Potable Water Pipe
Common Product
MasterFormat 22 10 00 Plumbing Piping and Pumps; 22 11 00 Facility Water Distribution; 22 11 16 Domestic Water Piping

This information reflects our best understanding of product composition in 2021.

Polyethylene of raised temperature (PE-RT) pipes are designed to carry the benefits of PEX (crosslinked polyethylene) pipes, without the drawbacks associated with crosslinking. They are manufactured with a high density polyethylene resin that...

More about PE-RT Potable Water Pipe

Polyethylene of raised temperature (PE-RT) pipes are designed to carry the benefits of PEX (crosslinked polyethylene) pipes, without the drawbacks associated with crosslinking. They are manufactured with a high density polyethylene resin that incorporates large co-monomers into the chain structure. These co-monomers cannot be incorporated into the crystal structure and thus create amorphous polymer segments that allow the polymer to form tie chains connecting the crystal structure. This structure gives the pipe extra strength and allows it to be used for hot water applications. PE-RT pipes use the same fittings as PEX pipes, and typically can be used for applications where PEX is specified, but they also have the ability to be thermally fused. Since PE-RT pipes are not crosslinked they are also recyclable. While these pipes are chlorine resistant, they rely on antioxidants to slow the rate of degradation. AWWA C901-17 requires PE-RT tubing to have a material designation code of PE4710, similar to HDPE pipes. 

PE-RT pipes and tubing sold in North America are generally offered in blue, white, and red. These pigments were not well disclosed and could add additional hazards not included in this Common Product (CP). Titanium dioxide was included as a representative pigment due to its widespread use as a pigment in polyethylene. While this CP covers PE-RT pipes used for potable water applications, PE-RT barrier tubing is also available. Barrier tubing contains multiple layers including a barrier layer composed of materials such as aluminum or ethylene vinyl alcohol (EVOH). Like PEX barrier tubing, this barrier allows the tubing to be used for radiant systems because it protects the metal components from corrosion by limiting oxygen permeation through the tube wall. Barrier tubing was beyond the scope of this CP but could introduce additional hazards and may also impact recyclability.

Name % Wt Whole Function GS Score Sources
1-Hexene, polymer with ethene
25213-02-9
95.96% Polymer Subscribe to view
Titanium dioxide
13463-67-7
3.64% Pigment Subscribe to view
Ionox 330
1709-70-2
0.20% Antioxidant/ Heat Stabilizer Subscribe to view
1,2-Bis(3,5-di-tert-butyl-4-hydroxyhydrocinnamoyl)hydrazine
32687-78-8
0.12% Antioxidant/ Heat Stabilizer Subscribe to view
Tris(2,4-di-tert-butylphenyl) phosphite
31570-04-4
0.06% Antioxidant Subscribe to view
Irganox 1010
6683-19-8
0.03% Antioxidant/ Heat Stabilizer Subscribe to view
Name % Wt Part % Wt Whole Function GS Score Sources
1-Hexene, polymer with ethene
25213-02-9
95.96% 95.96% Polymer Subscribe to view
Titanium dioxide
13463-67-7
3.64% 3.64% Pigment Subscribe to view
Ionox 330
1709-70-2
0.20% 0.20% Antioxidant/ Heat Stabilizer Subscribe to view
1,2-Bis(3,5-di-tert-butyl-4-hydroxyhydrocinnamoyl)hydrazine
32687-78-8
0.12% 0.12% Antioxidant/ Heat Stabilizer Subscribe to view
Tris(2,4-di-tert-butylphenyl) phosphite
31570-04-4
0.06% 0.06% Antioxidant Subscribe to view
Irganox 1010
6683-19-8
0.03% 0.03% Antioxidant/ Heat Stabilizer Subscribe to view

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Known or Potential Residuals
Known or Potential Residuals for Chemical
CASRN NAME GS SCORE TYPE FREQUENCY % WT CHEM % WT PRODUCT SOURCE
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Other Process Chemicals
CASRN NAME GS Score TYPE FREQUENCY % WT CHEM % WT PRODUCT SOURCES
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HBN Resources (2)
HBN Resources for Product
TYPE TITLE
Template Manufacturer Product Disclosure Request Template
Tool Water Pipes Hazard Spectrum
Sources
Sources for Common Product Data
Source Uploaded Document Linked Document
Dow US9006342B2
ExxonMobil US20200339715A1
Grabmayer 2014
hy-PE-RTube
Hypertherm 2399 NT PE-RT Resin
Hypertherm 2399 NT PE-RT Resin SDS
Legend Submittal
Liu Zehua 2017
Loschner 2011
Montes 2012
Plastic Piping Types
PPI PE-RT
PPI Plastic Pressure Piping Materials
PPI TR-7 2014
PPI Water Service Lines
Rifeng EPD
Roth PE-RT
Sharkbite Potable Water PE-RT
Stern 2008
Thornblom 2011
Union Carbide US7989549B2