INDUSTRIAL GASKETS & SEALING SOLUTIONS

Garlock

Garlock GYLON 3504

Garlock GYLON 3504 is an aluminosilicate microsphere-filled PTFE sheet designed for extensive chemical service and superior compressibility.

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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

Filled / Restructured PTFE

Product Family

PTFE

Material Composition

Aluminosilicate microsphere-filled PTFE

TECHNICAL SPECIFICATIONS

Material Specifications

Maximum temperature and pressure limits cannot be applied simultaneously.

TEMPERATURE

Min. -268 °C · Continuous 260 °C

PRESSURE

55 bar (catalogue maximum, verify according to P/T rating)

THICKNESSES

Thickness specifications not available in source documentation

Applications and Key Features

Garlock identifies compatibility with several acids, select alkalis, hydrocarbons, and refrigerants, with specific service limitations depending on the formulation.

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

What Sets This Material Apart

The glass microsphere filler is the key technical differentiator. It directly influences bolt-load response and behaves distinctly compared to denser filled-PTFE alternatives.

Recommendations for Replacement Evaluations

To specify the correct replacement, identify the process media, target bolt torque, and any mandatory certification standards.

To evaluate alternative constructions: Garlock GYLON 3505 and TEADIT TEALON TF 1570. The presence of microspheres alone does not imply equivalent industry approvals, mechanical properties, or operating limits.

What Sets This Material Apart

The glass microsphere filler is the key technical differentiator. It directly influences bolt-load response and behaves distinctly compared to denser filled-PTFE alternatives.

Recommendations for Replacement Evaluations

To specify the correct replacement, identify the process media, target bolt torque, and any mandatory certification standards.

REPLACEMENT TO BE EVALUATED

Compare designs and alternatives

KEY COMPARISON CRITERIA

GYLON 3505 also incorporates microspheres, but features a dedicated NSF/ANSI 61 certification. GYLON 3510 is filled with barium sulphate.

Need this gasket, custom cutting, or a replacement?

Part Number: Garlock GYLON 3504

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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View official documentation

The manufacturer's latest datasheets, certifications, and P/T curves must be reviewed prior to ordering or substitution.

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RELATED PART NUMBERS

Compare Related Designs

Both options feature microsphere-filled PTFE; however, filler types, compressibility, and certifications are specific to each grade. Related reference constructions include GYLON 3505 (filled / restructured PTFE), TEADIT TEALON TF 1570 (glass microsphere-filled PTFE), and Flexitallic SIGMA 500 (modified / filled PTFE).

REFERENCE SHEET

Flexitallic

Flexitallic SIGMA 500

Biaxially oriented PTFE filled with hollow glass microspheres

View Specifications →

REFERENCE SHEET

Garlock

Garlock GYLON 3505

Aluminosilicate microsphere-filled PTFE

View Specifications →

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