Garlock BLUE-GARD 3000

Garlock BLUE-GARD 3000 is a compressed non-asbestos sheet (CNA) gasket material, engineered with aramid fibres and an NBR binder. A proven industry benchmark, it is widely utilized across a variety of industrial assemblies. When specifying a replacement, media compatibility, available bolt load, and the operating pressure-temperature profile are critical factors that take precedence over simple material resemblance.

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Manufacturer Documentation

Our Quebec facility manufactures custom-cut flat gaskets to your exact specifications. VAMECA can also evaluate the supply of this part number or engineer a suitable replacement.

AT A GLANCE

Aramid/NBR

Product Family

Compressed Fibre

Material Composition

Aramid/NBR

TECHNICAL SPECIFICATIONS

Material Specifications

Maximum temperature and pressure limits cannot be applied simultaneously.

TEMPERATURE

-73 to +371 °C depending on the manufacturer; maximum continuous operating temperature of +205 °C. Extreme parameters cannot be combined.

PRESSURE

70 bar

THICKNESSES

Thicknesses to be confirmed on the technical data sheet

Applications and Key Features

Flanges and process equipment with flat-face gaskets: evaluate the process fluid, normal and transient operating temperatures, pressure, and bolt torque specifications before selecting a sealing material.

Published Testing and Approvals

Standards, Testing, and Certification References

Standards / Testing: ASTM F36, ASTM F38

PART NUMBER ANALYSIS

To properly select or replace this material

Composition and Key Specifications

BLUE-GARD 3000 is a compressed aramid/NBR sheet gasket material, not a PTFE or graphite product. Its technical datasheet specifies a maximum continuous operating temperature of 205 °C and a stated maximum limit of 371 °C. These figures do not indicate continuous operation at maximum temperature. Actual system pressure, media compatibility, thermal cycling, and service life must all be factored in.

Which Grades Should Be Compared?

Related materials include KLINGERSIL C-4400 and TEADIT NA1081, both belonging to the aramid/NBR family, as well as Durlon 8500, which features a formulation combining aramid, inorganic fillers, and NBR. When evaluating an alternative, compare compressibility, recovery, stress relaxation (creep), thickness, and allowable bolt torque/seating stress.

Pre-Replacement Checklist

Verify the original part number, nominal diameter (DN/NPS), flange class or standard, gasket geometry, thickness, process fluid and concentrations, peak temperatures, and operating pressure. Degraded sealing surfaces, limited bolt torque, or distorted flanges can compromise a replacement that appears suitable on paper. Always consult official manufacturer technical data and have the application validated prior to cutting.

To compare material constructions: KLINGER KLINGERSIL C-4400 and Durlon 8500. While these grades share an aramid/NBR base, specific formulations, industry approvals, and pressure-temperature (P x T) ratings remain distinct to each manufacturer.

Composition and Key Specifications

Which Grades Should Be Compared?

Pre-Replacement Checklist

REPLACEMENT TO BE EVALUATED

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KEY COMPARISON CRITERIA

KLINGERSIL C-4400, TEADIT NA1081, and Durlon 8500 are the references covered in this data sheet. The first two feature a certified aramid/NBR formulation, while Durlon 8500 also incorporates inorganic fillers. Mechanical properties, pressure-temperature ratings, and compliance approvals remain specific to each individual grade.

Need this gasket, custom cutting, or a replacement?

Part Number: Garlock BLUE-GARD 3000

Please provide the part number, thickness, dimensions, quantity, and process fluid. We will review material availability for the specified grade, custom cutting at our Quebec facility, or an engineered alternative tailored to your assembly.

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