Special Pitch No. 3 , No.4 and No. 5 / Special Coal Tar
– For paints and protective marine & surface coatings equivalent to Koppers Grades like Carbomod etc
Special Pitch No. 3 – PN3 :
Recommenced Uses: In formulations with resins, plastics, elastomers, urethane and epoxy systems. A refined coal tar pitch cutback is produced from selected high temperature coke oven tars.
Technical Data
Specific Gravity (@ 77ºF): 1.18 – 1.26
Water %, by Volume: 0.25 Maximum
Float Test (@ 50ºC): 65 – 95 sec.
% Ash: 0.25 Maximum
Total Distillation by Mass %:
0º To 170ºC: 0 – 1%
170ºC To 270ºC: 5 – 12%
270ºC To 300ºC: 5 – 10%
Carbon Disulfide Insoluble, % by Weight: 8 – 14%
Flash Point – Pensky Martens: 230ºF Minimum
Solvent Used: None
Special Pitch No.4 – PN4 :
Recommenced Uses: In formulations with resins, plastics, elastomers, polyurethane and epoxy systems – sealants, coatings etc.
Technical Data
Specific Gravity (@ 25 oC): 1.18 – 1.22
Viscosity, CPS : 2000 +/- 500
Water %, by Volume: 0.25% Maximum
Float Test (@ 50 oC): 65 – 95 sec.
Ash: 0.23% Maximum
Insoluble in CS2, by Mass %: 7 – 13%
Total Distillate by Mass %:
0 To 170 o C : 10 – 12%
170 To 270 o C : 4 – 10%
270 To 300 o C : 4 – 10%
Flash Point – Pensky Martens: 27 oC Minimum
Solvent Used: Xylene
Special Pitch No.5 – PN5 :
Technical Data
Specific Gravity(@ 25oC): 1.16-1.20
Viscosity,CPS : 500 +/- 200
Water %,by Volume: 0.25% Maximum
Float Test(@ 50 oC): 65-95 sec.
% Ash: 0.21% Maximum
Insoluble in CS2,by Mass %: 6-12%
Total Distillate by Mass %:
0 To 170 oC 16 – 18%
170 To 270 oC 4 – 10%
270 To 300 oC 4 – 10%
Flash Point – Pensky Martens: 27 oC Minimum
Solvent Used: Xylene
Special Tar PT5000 :
Recommended Uses: In Paint Formulations with Resins, Plastics, Elastomers, Urethanes, and Epoxy Systems. Also Used in Epoxy / Coal Tar Coating equivalent to Koppers Carbomod AN
Technical Data
Specific Gravity (@77oF): 1.14-1.24
Water %, by Volume: 0.5 Maximum
% Ash: 0.25 Maximum
Carbon Disulfide Insoluble, % by Weight 20% Maximum
Flash Point-Pensky Martin 180 oF
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