Corrosion Resistance of Colorado
Eco Coatings PNC Conduit
Corrosion resistance data provided in the table below were based on
laboratory tests conducted by the manufacturers. This information is not a guarantee and
may only be used as a basis for recommendation.
Acetic Acid 0-20%
Bismuth Carbonate
Copper Fluoride
Hydrofluoric Acid 10%
Palmitic Acid 10%
Sodium Ferricyanide
Acetic Acid 20-30%
Black Liquor
Copper Nitrate
Hydrofluorosilicic Acid
Perchloric Acid 10%
Sodium Ferrocyanide
Acetic Acid 30-60%
(Paper Industry)
Copper Sulfate
Hydrogen Phosphide
Phenylhydrazine
Sodium Fluoride
Acetic Acid 80%
Bleach – 12.5% Active CL2
Cottonseed Oil
Hydrogen Sulfide–Dry
Hydrochloride
Sodium Hydroxide
Acetic Acid – Glacial
Borax
Cresylic Acid 50%
Hydrogen Sulfide –
Phosgene Gas
Sodium Hypochlorite
Acetic Acid Vapors
Boric Acid
Crude Oil – Sour
Aqueous Solution
Phosphoric Acid – 0-25%
Sodium Nitrate
Acetylene
Brine
Crude Oil – Sweet
Hydroquinone
Phosphoric Acid – 25-50%
Sodium Nitrite
Adipic Acid
Breeder Pellets –
Demineralized Water
Hydroxylamine Sulfate
Phosphoric Acid – 50-85%
Sodium Sulfate
Alum
Deriv. Fish
Dextron
Iodine
Photographic Chemicals
Sodium Sulfide
Aluminum Chloride
Bromic Acid
Dextrose
Kerosene
Plating Solutions
Sodium Sulfite
Aluminum Fluoride
Bromine – Water
Diglycolic Acid
Lactic Acid 28%
Potassium Bicarbonate
Sodium Thiosulfate
Aluminum Hydroxide
Butane
Disodium Phosphate
Lauric Acid
Potassium Bichromate
(Hypo)
Aluminum Oxychloride
Butadiene
Ethyl Alcohol
Lauryl Chloride
Potassium Borate
Stannic Chloride
Aluminum Nitrate
Butyl Alcohol
Ethylene Glycol
Lauryl Sulfate
Potassium Bromate
Stannous Chloride
Aluminum Sulfate
Butyl Phenol
Fatty Acids
Lead Acetate
Potassium Bromide
Stearic Acid
Ammonia – Dry Gas
Butylene
Ferric Chloride
Lime Sulfur
Potassium Carbonate
Sulfur
Ammonium Bifloride
Butyric Acid
Ferric Nitrate
Linoleic Acid
Potassium Chloride
Sulfur Dioxide – Gas (Dry)
Ammonium Carbonate
Calcium Bisulfite
Ferric Sulfate
Linseed Oil
Potassium Chromate
Sulfur Trioxide
Ammonium Chloride
Calcium Carbonate
Ferrous Chloride
Lubricating Oils
Potassium Cyanide
Sulfuric Acid – 0-10%
Ammonium Hydroxide
Calcium Chlorate
Ferrous Sulfate
Magnesium Carbonate
Potassium Dichromate
Sulfuric Acid – 10-75%
28%
Calcium Chloride
Fluorine Gas – Wet
Magnesium Hydroxide
Potassium Ferricyanide
Sulfuric Acid – 75-90%
Ammonium
Calcium Hydroxide
Fluorine Gas–Dry
Magnesium Nitrate
Potassium Ferrocyanide
Sulfurous Acid
Metaphosphate
Calcium Hypocholrite
Fluorobonic Acid
Magnesium Sulfate
Potassium Fluoride
Tannic Acid
Ammonium Nitrate
Calcium Nitrate
Fluorosilic Acid
Maleic Acid
Potassium Hydroxide
Tanning Liquors
Ammonium Persuitate
Calcium Sulfate
Formaldehyde
Malic Acid
Potassium Nitrate
Tartaric Acid
Ammonium Phosphate –
Carbonic Acid
Formic Acid
Mercuric Chloride
Potassium Perborate
Titanium Tetrachloride
Neutral
Carbon Dioxide Gas – Wet
Fructose
Mercuric Cyanide
Potassium Perchlorate
Triethanolamine
Ammonium Sulfate
Carbon Dioxide –
Gallic Acid
Mercurous Nitrate
Potassium Permanganate
Trimethylene Propane
Ammonium Sulfide
Aqueous Solution
Gas – Coke Oven
Mercury
10%
Trisodium Phosphate
Ammonium Thiocyanate
Carbon Monoxide
Gas – Natural (Dry)
Methyl Sulfate
Potassium Persulfate
Turpentine
Amyl Alcohol
Caustic Potash
Gas – Natural (Wet)
Methylene Chloride
Propane
Urea
Anthraquinoneasultonic
Caustic Soda
Gasoline – Sour
Mineral Oils
Propyl Alcohol
Vinegar
Acid
Chloracetic Acid
Gasoline – Refined
Naphthalene
Silicic Acid
Whiskey
Antimony Trichloride
Chloral Hydrate
Glucose
Nickel Chloride
Silver Cyanide
White Liquor
Aqua Regia
Chlorine Gas (Dry)
Glycerine (Glycerol)
Nickel Nitrate
Silver Nitrate
(Paper Industry)
Arsenic Acid 80%
Chlorine Gas (Moist)
Glycol
Nitric Acid. Anhydrous
Silver Plating Solutions
Wines
Arvisulfonic Acid
Chlorine Water
Glycotic Acid
Nitric Acid 20%
Sodium Acetate
Zinc Chloride
Barium Carbonate
Chlorosulfonic Acid
Green Liquor
Nitric Acid 40%
Sodium Arsenite
Zinc Chromate
Barium Chloride
Chrome Alum
(Paper Industry)
Nitric Acid 60%
Sodium Benzoate
Zinc Cyanide
Barium Hydroxide
Chromic Acid 10%
Heptane
Nitrobenzene
Sodium Bicarbonate
Zinc Nitrate
Barium Sulfate
Chromic Acid 30%
Hexanol Tertiary
Nitrous Oxide
Sodium Bisulfate
Zinc Sulfate
Barium Sulfide
Chromic Acid 40%
Hydrobromic Acid 20%
Oils and Fats
Sodium Bisulfite
Beet – Sugar Liquor
Chromic Acid 50%
Hydrochloric Acid 0-25%
Oils – Petroleum –
Sodium Bromide
Benzine Sulfonic Acid
Citric Acid
Hydrochloric 25-40%
(See Type)
Sodium Chlorate
10%
Copper Chloride
Hydrocyanic Acid or
Oleic Acid
Sodium Chloride
Benzoic Acid
Copper Cyanide
Hydrogen Cyanide
Oxalic Acid
Sodium Dichromate
Polymer Non-Metallic
Conduit (PNC) Installation
Guidelines
Pallet
Quantities and Truckload Formation
US Trade
Size
Sched 40
Wt./Ft
Feet/Pallet
Full Truck
Loading Units
1/2
0.164
6000'
276,000'
1/2
3/4
0.218
4400'
206,800'
1/2
1
0.321
3600'
140,400'
1
1-1/4
0.434
3300'
102,300'
1
1-1/2
0.518
2250'
85,500'
1
2
0.695
1400'
56,000'
1
2-1/2
1.096
930'
37,200'
1
3
1.435
880'
28,160'
1-1/2
3-1/2
1.729
630'
20,160'
1-1/2
4
2.043
570'
18,240'
1-1/2
5
2.776
380'
12,160'
1-1/2
6
3.600
260'
8,320'
1-1/2
Maximum Weight per
Truckload: 45,000 Lbs.
Maximum Loading Units per Truckload:
Approx. 44-48 Units.
PNC Conduit Installation
Instructions
Cut sizes 1/2" –
1-1/2" square using a fine tooth handsaw and deburr each end of the
conduit. For sizes 2"-6", a miter box, or similar saw guide
should be utilized to keep material steady.
After cutting and
deburring, wipe pipe ends clean of dust, dirt and shavings. Make sure both
the conduit and the coupling are clean and dry before any solvent cement is applied.
Apply coat of solvent
cement to end of conduit to the length of socket to be attached. Wipe any
excess cement left on the brush into the inside of the coupling.
Push conduit firmly
into fitting while rotating conduit about one-quarter turn to spread
cement evenly. Push and rotate conduit until the ends meet.
Allow cement to set
until dry.
Product
Comparison Chart
PNC
Epoxy Fiberglass
PVC
Sch
40
PVC
Sch
80
Galvanized Rigid
Steel
PVC
Coated
Steel
Aluminum
Cable Fault
PNC
conduit will not melt or weld the wire to the inside of the conduit under fault conditions as can happen with
PVC, steel and aluminum conduit.
Not Affected
Not Affected
Melt/ Fuse
Melt/ Fuse
Weld
Weld
Weld
Corrosion
Resistance
PNC conduit
has the broadest range of corrosion resistance of all these conduit materials.
Unlimited
Wide Range
Limited
Limited
Poor
Limited
Limited
Relative Cost, 4" Conduit
(Relative for Labor and Material Cost)
0.75
1
0.75
1
4
6
3.5
Toxicity/Halogens
PNC
conduit does not release toxic halogens (i.e. chlorine and bromine) when burning.
No
No
Yes
Yes
No
Yes
No
3/4"
1"
1 1/4"
1 1/2"
Weight
Comparison2"
(lbs.
per 100ft., approx.)2 1/2"
PNC
conduit offers the lowest3"
weight
and is still very rigid3 1/2"
4"
5"
6" 8"
23 34 46
55 73 125 164 198 234 318 412 640
27 30 35 38 40 50 59 65 78 97 117 150
23 34 46 55
73 125 164 198 234 318 412 640
29
43
59
99
99
152 212 262 310 431 592 N/A
105 153 201 246 334 527 690 831
982 1344 1770 N/A
105 153 201 246 334 527 690 831
982 1344 1770 N/A
36
53
70 86 116
183 239 288 340 465 612 N/A
Support Spacing for 4" Conduit (ft)
7
12
7
7
20
20
15
Temperature Range (°F)
PNC has an excellent wide temperature range.
-80° to
+300°
-60° to
+250°
-40° to
+150°
-40° to
+150°
N/A
N/A
N/A
Handling
in Low Temperatures
PNC conduit has been shown to retain its properties at low temperatures allowing year round
installations.
Excellent
Excellent
Brittle
Brittle
Excellent
Excellent
Excellent
Burn
Through (Cable Pull)
PNC conduit is an excellent material for
avoiding "burn through"
when pulling cable.
No
No
Yes
Yes
No
No
No
Coefficient of Friction Using PVC Jacketed
Cable
PNC conduit offers one of the lowest
coefficient of friction
available today for conduit systems. It is completely resistant to any of the
current pulling lubricants
corrosive properties.
0.70
0.38
0.90
0.90
0.55
0.90
0.25
Conductivity
PNC conduit acts as an excellent insulator.
No
No
No
No
Yes
Yes
Yes
Product
Comparison Chart – Continued
PNC
Epoxy Fiberglass
PVC
Sch
40
PVC
Sch
80
Galvanized Rigid
Steel
PVC
Coated
Steel
Aluminum
UV Stable (Sunlight Resistance)
(Per UL 1684 & CSA-C22.2 No. 211.3-96
Good
Poor
Poor
Excellent
Poor
Excellent
Coefficient
of Thermal Expansion (10-5 inch/inch/°F)
*The
coefficient is .7 for the steel and 3.5 for the PVC layer. Because of the broad
difference between
the two materials, adhesion is severely affected during temperature contraction and expansion.
3.5
1.0
3.5
3.5
0.7
3.5/0.7*
3.5
Distance Between Expansion Joints (ft)
200
50
50
200
200
50
Impact from Earthquake
Due to the
flexibility of PNC conduit (low modulus of elasticity) it is less likely to be damaged during an
earthquake and other similar conditions. During the Northridge earthquake in Los Angeles, CO, 1994,
concrete encased PVC conduit melted due to mechanical friction. No damage was found to encased
PNC conduit.
Excellent
Excellent
Poor
Poor
Poor
Poor
Excellent
Resistance
to Rodents & Fire Ants
PNC
conduit is extremely resistant to attack from rodents as well as to the aggressive chemicals secreted
from fire ants.
Good
Excellent
Poor
Poor
Excellent
Excellent
Excellent
Field Handling
Due to its
light weight, ease of cutting and integral bell, PNC conduit is very easy to install.
Excellent
Excellent
Good
Good
Very Poor
Very Poor
Poor
Memory
PNC
conduit will retain its original shape after impact or compression.
