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  • Croylam FR4 Epoxy Glass Sheet, 1220mm x 1220mm
  • FR4 Epoxy Glass Sheets
  • Sku: 5310160

Croylam FR4 Epoxy Glass Sheet, 1220mm x 1220mm

Laminate Size

Datasheet

Price per Sheet
£69.15 GBP

Order by 2pm for next day UK delivery*

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DESCRIPTION

* Please note: this product ships on a 48 hour delivery service.

FR4 Epoxy Glass Sheet is renowned for its high mechanical strength, electrical reliability, and thermal resistance. Manufactured using woven fiberglass reinforced with epoxy resin, FR4 delivers exceptional durability and precision performance, making it ideal for industrial, aerospace, automotive, and electronic applications.

This material machines extremely well and can be supplied cut to the customers drawings.

APPLICATIONS

  • PCB Substrates & Electrical Components – Trusted for circuit boards, transformers, and switchgear insulation.

  • Structural & Mechanical Components – Ideal for load-bearing supports and vibration-resistant mounting.

  • Aerospace & Automotive Engineering – Critical for insulation in high-performance systems.

  • Heavy Industrial & Manufacturing – Used in tooling fixtures, insulation panels, and wear-resistant parts.

    • TECHNICAL INFO

     

    PROPERTIES

    ASTM TEST METHOD

     

     

    UNITS

     

     

    CONDITION

     

     

    SPECIFICATION

     

    TEST RESULTS

    PHYSICAL PROPERTIES

     

    Specific Gravity

    ---

    ---

    A

    ---

    1.90

    Water Absorption (max)

        D229

    %

    D-24/23

    0.8mm €“ 0.5%

    1.2mm €“ 0.4%

    1.6mm €“ 0.25%

    2.4mm - 0.2%

    3.0-5.0mm-0.15%

    0.8mm€“ 0.4%

    1.2mm €“ 0.3%

    1.6mm €“ 0.18%

    2.4mm €“ 0.15%

    3.0-5.0mm€“ 0.12%

    MECHANICAL PROPERTIES

     

    Tensile Strength LW.

    (12mm thick) C.W.

     

    Psi

    A

    40,000

    35,000

    42,000

    36,000

    Impact Strength

    A. Izod                 L.W.

    (3.2-25mm thick) C.W

        D229

     

     

    ft-lb/inch (Notch)

    A

    7.00

    5.50

    7.8

    5.75

    Flexural Strength L.W.

    (0.8-2.4mm thick) C.W.

    D229

    Psi

    A

    55,000

    45,000

    62,000

    53,000

    Bonding Strength

    (12mm thick)

    D229

    Lbs

    A

    D/48/50

    2,000

    1,600

    2,200

    1,800

    ELECTRICAL PROPERTIES

     

    Minimum Breakdown Voltage

    Edge Wise (0.8-25mm)

    D229

    kV

    A

    D48/50

    45

    40

    50

    45

    Electric Strength (perpendicular to lamination) €“ (1.5mm thick)

    D229

    kV/mm

    In oil at 90°C

    15

    20

    Maximum Permittivity/1 MHz (1.5mm thick)

    D229

    ----

    A

    D24/23

    5.20

    5.40

    5.12

    5.25

     

     

     

     

     

     

    PROPERTIES

    ASTM

    TEST

    METHOD

     

    UNITS

     

    CONDITION

    SPECIFI-

    CATION

    TEST

    RESULTS

    Insulation Resistance after (Immersion in water for 24 hours)

     

     

    D229

     

     

    M„¦

     

     

    C-96/35/90

     

     

    200,000

     

     

    300,000

    Maximum Dissipation

    Factor/MHZ (1.5mm thick)

     

    ----

     

    ---

     

    A

    D-24/23

     

    0.025

    0.035

     

    0.02

    0.03

    THERMAL PROPERTIES

     

    Temperature Index

    VDE 0304/2

    °C

    --

    130

    130

    Insulating class

    IEC Publ.85

    °C

    --

    B

    B

    Flammability

    UL94

    Class

    A

    V0

    V0

    Martens heat distortion temperature

     

    ---

     

    Deg/C

     

    A

     

    160

     

    160

    GLASS FABRIC DETAILS

     

     

     

     

     

    Fine weave Glass Fabric Style 7628

     

     

     

     

     

    GSM

    --

    --

    --

    200+/-5

    OK

    Thickness

    --

    --

    --

    0.18mm

    OK

    Weave Structure

    Yarn count per 10 cm

    Wrap (length wise) x weft (cross wise)

    --

    --

    --

    170 x 120

    OK

     

    FEATURES AND BENEFITS

  • Superior Electrical Insulation – Maintains dielectric strength in high-voltage environments.

  • High Mechanical Stability – Resists impact, stress, and wear for long-lasting durability.

  • Flame & Heat Resistance – Performs reliably under extreme temperatures, meeting UL 94 V-0 flame rating.

  • Exceptional Chemical Resistance – Withstands moisture, oils, and industrial solvents.

  • Precision Machinability – Easily fabricated, drilled, and shaped for complex engineering requirements.

    • MATERIAL DATA

    Product Code

    531

    Sheet Sizes Available:

    1220mm x 1200mm

    Thicknesses available:

    0.2mm-12mm as standard

    PRICE MATRIX

    Thickness Price per sheet
    1.6mm £69.15
    2.4mm £103.73
    3.2mm £133.85
    6.4mm £267.69