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Style 7075
 

Compressed Sheet

NOVATEC  825F Engineered Graphite

NOVATEC's high percentage of graphite and low percentage of rubber binder gives it such remarkable media and temperature resistance that all other compressed sheet is now obsolete.

NOVATEC 825F is Frenzelit's general service compressed gasket sheet made with 75% pure  graphite. This unique gasket sheet has great flexibility. It is easily identified by the cranberry colored "easy release" non-stick coating. This sheet's 45% compressibility allows for better sealing for those less than perfect flanges. This material does not cold flow when compressed with excessive torque. It likes stress and performs its best when compressed to 5000 PSI and beyond. This is an excellent steam sheet that works best in flanges.

Frenzelit’s NOVATEC  Engineered Graphite easily replaces the competitions compressed sheets.  See our “Compressed Gasket Sheet Comparison” for details. 

Our "Gasket Installation Procedure" must be followed to assure optimum performance in your gasket application. 
 
Temperature
825°F/441°C
Pressure 
1500 PSI
Color 
Cranberry
Composition 
Graphite
pH 
2 - 14
Density
62 lb./ft³
Leachable Chlorides 
Less than 100 ppm
PxT Values 
1/16" - 350,000 3/32" - 210,000
Fire Safe Tested
DIN Approved
Thickness
.020", 1/32", 1/16", 3/32", 1/8", 3/16", 1/4"
Sheet Size
60" x 60", 80" x 80", 60" x 80", 40" x 80"
ASTM F 104 Tests 1/32" Thick
 
F 38 B Creep Relaxation

22 Hrs @ 212°F (100°C) 

22 Hrs @ 392°F (200°C) 
15%

35%
F 37 A Sealability

Fuel A @ 14.5 PSI/Gasket Load 1000 PSI
.25 ml/hr
F 37 B Sealability

Fuel A @ 9.8 PSI/Gasket Load 500 PSI

Nitrogen @ 30 PSI/Gasket Load 3000 PSI
05 ml/hr 

.1 ml/min
F 146 Thickness Increase

Oil #3, 5 Hrs @ 300°F

Fuel B, 5 Hrs @ 73°F
< 3% 

< 4%
F 36 A Compressibility

5000 PSI Gasket Load
45%
F 36 A Recovery
10%
F 152 Tensile Strength 
600 PSI
DIN 3535 Part 6 Gas Permeability

Nitrogen @ 580 PSI/Gasket Load 4640 PSI
. 
2 cc/min
DIN 52913 Stress Relaxation @ 7250 PSI

16 Hrs @ 347°F

16 Hrs @ 572°F
Stress Retained > 6500 PSI 

Stress Retained > 5000 PSI
DIN 3754 48 Hrs @ 75°F Thickness Increase

H2S04 Sulfuric Acid 65% Concentration

NaOH Sodium Hydroxide 25% Concentration
7% 
3%
As in all compressed sheets the P x T values decrease significantly as the thickness increases. Our maximum temperature, pressure and P x T values cannot be exceeded.
 
 
 
 
 
 
 
 
 
 
 
 
Phelps Industrial Products, Inc., 6300 Washington Boulevard, Elkridge, Maryland 21075-5397