Transport pipes - 9.0

Part Number 



100m reel PTFE tubing 


acrylic tubing 

Data for both the flexible PTFE and solid acrylic tubing is shown below. 

Engineering specifications 



Acrylic (PMMA) 

Inner diameter (mm) 



Outer diameter (mm) 



Mechanical properties 



Acrylic (PMMA) 

Young's modulus (MPa) 
Tensile strength (MPa) 

410 - 750 
25 - 36 


Elongation (%) 


Compressive strength (MPa) 



Bending strength (MPa) 



Impact strength (J/cm) 

1.6 - 1.6 


Physical properties 



Acrylic (PMMA) 

Thermal expansion (e-6/K) 

100 - 100 


Thermal conductivity (W/mK) 

0.23 - 0.25 


Specific heat (J/kg.K) 

1000 - 1000 


Melting temperature (°C) 

327 - 327 


Glass temperature (°C) 127 105-110 



Density (kg/m3) 

2150 - 2200 


Resistivity (Ω.mm2/m) 



Friction coefficient 

0.05 - 0.08 

0.45 – 0.8 

Refraction index 

1.35 - 1.35 


As the PTFE pipes are installed in conduits or trunking within the ceiling space, their MSDS is reproduced below, to assist you in complying with your local fire safety regulations.

PTFE Thin Wall Tubing Properties

Material Properties Data
Inside bending radius (mm) 144
Flexural modulus at room temperature (N/mm^2^) 350 - 650
Breaking strain according to ASTM D 790 (N/mm^2^) 0.7

Burst pressure at 23°C (MPa)

Note: pressure resistance at 50°C will be 50% of the pressure resistance at 23°C

Service pressure (estimated as 1/3 of the burst pressure) (MPa) 0.7
Tolerance on inside diameter (mm) 0.3
Tolerance on excentration (for 2mm wall thickness) 0.2
Stability and reactivity Data
Stability Stable at normal temperatures and storage conditions.
Resistance to atmospheric agents and light Test pieces of PTFE, exposed for over twenty years to the most disparate climatic conditions, have not shown any alteration of their characteristic properties.
Resistance of PTFE to chemical agents PTFE is practically inert against known elements and compounds. It is attacked only by the alkaline metals in the elementary state, by chlorine trifluoride and by elementary fluorine at high temperatures and pressures.
Solvent resistance PTFE is insoluble in almost all solvents at temperatures up to about  300°C. Fluorinated hydrocarbons cause a certain swelling which is however reversible; some highly fluorinated oils, at temperatures over 300°C, exercise a certain dissolving effect upon PTFE.
Regulatory Information Data
Components Polytetrafluoroethylene
CAS Number 9002-84-0
OSHA PEL Not listed
TCA Listed Listed
Ingredients with occupational exposure limits to be monitored None
UL-94 Flammability Rating V-0
Hazardous ingredients Data

Material is not known to contain Toxic Chemicals under Section 313 of Title III of the Superfund Amendments and Reauthorization Act of 1986 and 40 CFR part 372.

Heated above 400°C (750°F) can evolve as degradation products:

Hydrogen fluoride \<1% Ref. CAS 7664-39-3
Carbonyl fluoride \<1% Ref. CAS 353-50-4
Health risks Data
Toxicological information Under normal conditions of use, no harmful effects on man are known.
Carcinogen PTFE has no cancerogenic effect.

Inhalation of fumes from overheating (above 300°C / 572°F) PTFE (Polytetrafluoroethylene) may cause polymer fume fever, a temporary flu like illness with fever, chills, and sometimes cough, of approximately 24 hours duration.

Trace amounts of carbonyl fluoride and hydrogen fluoride may also be evolved when PTFE is overheated or burned above 400°C (750°F).

Inhalation of low concentrations of HYDROGEN FLUORIDE can initially include symptoms of choking, coughing, and severe eye, nose, and throat irritation. This is possibly followed after a symptomless period of one to two days by fever, chills, difficulty in breathing, cyanosis, and pulmonary edema. Acute or chronic overexposure to HF can injure the liver and kidneys.

Inhalation, ingestion, or skin or eye contact with CARBONYL FLUORIDE may initially include:

skin irritation with discomfort or rash;

eye corrosion with corneal or conjectural ulceration;

irritation of the upper respiratory passages;

temporary lung irritation effect with cough, discomfort, difficulty in breathing, or shortness of breath.

Individuals with pre-existing diseases of the lungs may have increased susceptibility to the toxicity of excessive exposures from thermal decomposition products.

Skin Contact Does not irritate human skin
Eye Contact May cause eye irritation
Personal protection Data
Respiratory Where the material temperature is above 300°C (572°F), use a positive pressure supplied air respirator.
Eye protection Not normally required
Protective clothing Not normally required
First aid measures Data

No specific intervention is indicated as the PTFE tubing is not likely to be hazardous by inhalation. Consult a physician if necessary.

If exposed from fumes from overheating or combustion, move to fresh air. Consult a physician if symptoms persist.

Skin Contact PTFE tubing is not likely to be hazardous by skin contact.
Eye Contact In case of contact, immediately flush eyes with plenty of water and get medical attention if irritation occurs.
Fire and explosion hazards Data

If a flame is applied to the material it will ignite but if the flame is removed then combustion ceases.

Limited flame spread and low smoke generation (NFPA 262-1990, UL-910). Complies with NFPA definition of “limited combustible” material.

Flash point 530-550°C (986-1022°F), ASTM D1929
Self ignition temperature 520-560°C (968-1040°F), ASTM D1929
Melting Point 327/335°C
Explosion risk No explosion risk
Suitable extinguishing media Water, foam, CO~2~ and dry extinguishing media, as appropriate for surrounding materials

Products will emit toxic fumes at high temperatures. Hazardous gases/vapors produced in a fire are hydrogen fluoride (HF), carbon monoxide, and potentially toxic fluorinated compounds.

Approved pressure demand breathing apparatus and protective clothing should be used for all fires.

Protect from hydrogen fluoride fumes which react with water to form hydrofluoric acid.

Wear neoprene gloves when handling refuse from a fire involving PTFE

Environmental information Data
The material does not harm the environment but is not biologically degradable.  
Transport Not classified as hazardous under transport regulations.
Disposal No specific risks. The product must be disposed in accordance with the local authorities. Recycling is suggested.







Transport pipes - 9.1 Installing PTFE pipes >>>