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BLUE-GARD
®
Compressed Gasketing
3200
†
/
2900
/
3000
3400
4
3300
4
3700
4
2950
Color
Blue
Off-white/
Black
Light grey
Black/
Grey-black
Green
Binder
Nitrile (NBR)
SBR
Neoprene (CR)
EPDM
Nitrile (NBR)
Temperature
1
Maximum
+700°F (+370°C) +700°F (+370°C) +700°F (+370°C) 700°F (+370°C) +700°F (+370°C)
Minimum
-100°F (-75°C)
-100°F (-75°C)
-100°F (-75°C)
-100°F (-75°C)
-40°F (-40°C)
Continuous max. +400°F (+205°C) +400°F (+205°C) +400°F (+205°C) +400°F (+205°C) +400°F (+205°C)
Pressure, max
.
1
psig (bar)
1,000 (70)
1,200 (83)
1,200 (83)
1,200 (83)
1,000 (70)
P x T, max
.
1
(psig x °F) 1/32", 1/16"
350,000
350,000
350,000
350,000
350,000
(bar x °C) (0.8mm, 1.6 mm)
(12,000)
(12,000)
(12,000)
(12,000)
(12,000)
1/8"
250,000
250,000
250,000
250,000
250,000
(3.2 mm)
(8,600)
(8,600)
(8,600)
(8,600)
(8,600)
Sealability
(ASTM F37B)
2
ASTM Fuel A
ml/hr
0.2
0.1
0.2
0.1
0.25
Nitrogen
ml/hr
0.6
0.4
1.0
0.7
1.00
Gas Permeability
(DIN 3535 Part 4)
3
cc/min.
0.05
0.03
0.08
0.04
—
Creep Relaxation
(ASTM F38) %
21
18
18
25
25
Compressibility Range
(ASTM F36) %
7-17
7-17
7-17
7-17
7-17
Recovery
(ASTM F36) %
50
50
50
40
50
Tensile Strength
across grain
(ASTM F152)
psi (N/mm
2
)
2,250 (15)
2,250 (15)
2,250 (15)
2,500 (17)
1,500 (10)
Fluid Resistance
(ASTM F146 @ 5 hours)
ASTM #1 Oil
at +300°F (+150°C)
Thickness increase %
0-5
0-10
0-5
20-35
0-5
Weight increase %
< 8
< 20
< 15
—
0-10
ASTM IRM #903 Oil
at +300°F (+150°C)
Thickness increase %
0-15
15-30
15-30
60-100
0-15
Tensile loss %
< 35
< 70
< 50
—
0-35
ASTM Fuel A at
+70-85°F (+20-30°C)
Thickness increase %
0-5
0-15
0-10
10-40
0-5
Weight increase %
< 8
< 25
< 20
—
0-10
ASTM Fuel B
+70-85°F (+20-30°C)
Thickness increase %
0-10
5-20
5-20
20-50
0-10
Weight increase %
< 15
< 30
< 20
—
0-20
Density
1/16" (1.6 mm) thick
100 (1.60)
100 (1.60)
100 (1.60)
100 (1.60)
105 (1.68)
lbs/ft
3
(g/cm
3
)
Notes:
1
Based on ANSI RF flanges at our preferred torque. When approach-
ing maximum pressure, continuous operating temperature, minimum
temperature or 50% of maximum PxT, consult Garlock Engineering.
2
ASTM F37B Sealability, milliliters/hour (1/32" thick)
ASTM Fuel A (isooctane):
Gasket load = 500 psi (3.5 N/mm
2
),
Internal pressure = 9.8 psig (0.7 bar)
Nitrogen:
Gasket load = 3,000 psi (20.7 N/mm
2
),
Internal pressure = 30 psig (2 bar)
3
DIN 3535 Part 4 Gas Permeability, cc/min. (1/16" thick)
Nitrogen:
Gasket load = 4,640 psi (32 N/mm
2
),
Internal pressure = 580 psig (40 bar)
4
Saturated steam service guidelines:
• For optimal performance, use thinner gaskets when possible.
• Minimum recommended assembly stress = 4,800 psi.
• Preferred assembly stress = 6,000 psi to 10,000 psi.
• Retorque the bolts/studs prior to pressurizing the assembly.
Never retorque a pressurized assembly.
• If the service is superheated steam, contact Applications Engineering.
Typical Physical Properties*
This is a general guide and should not be the sole means of select-
ing or rejecting this material. ASTM test results in accordance with
ASTM F-104; properties based on 1/32" (0.8mm) sheet thickness.
†
Meets Mil-G-24696B
All styles are furnished with an anti-stick parting agent as standard.
* Values do not constitute specification limits
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