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Lamitex® G-3 PF GC 21

1 of 11 products in this brand
Lamitex® G-3 PF GC 21 glass/phenolic laminated sheet is most frequently preferred for application that require high flexural and impact strengths and good electrical properties under low relative humidity conditions. . Lamitex G-3 meets or exceeds NEMA G-3, Mil-I-24768/18 specifications and meets UL 94-HB requirements.

Functions: Laminate

Polymer Name: Phenol Formaldehyde (PF)

Reinforcement Material: Glass Fibers

End Uses: Power Transformers, Switch Gear

Technical Data Sheet
  • TypeDocument Name
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Knowde Enhanced TDS

Identification & Functionality

Reinforcement Material
Composite Materials Functions
Base Weave Material
Glass
Resin (binding agent)
Phenolic

Features & Benefits

Product Highlights

LAMITEX® laminated materials provide a unique range of design benefits. LAMITEX® composite laminates are engineering materials made from layers of fibrous reinforcement such as cotton cloth, paper or woven glass cloth, which are bonded together with high quality thermoset plastic resins. The layers are pressed together under high pressure and the resin is baked until it becomes solid, fusing the material into a tough, strong and dense material. Combinations of phenolic, epoxy, melamine or silicon resins saturated and cured in paper, cotton fabric, glass fabric or aramid fiber fabrics offers a range of laminate grades with properties designed for everyday use to the most demanding by today’s technologies.

LAMITEX® laminates combine mechanical strength and electrical insulation with chemical and weather resistance. They are rigid, with a high strength to weight ratio, and most grades can be machined with standard machine tools to make finished components. Franklin offers a comprehensive range of grades for our customers’ diverse applications.

Applications & Uses

Composites End Use
Plastics & Elastomers End Uses
Applications
Cryogenic Neck Tubes Cryogenic Pipe Insulation Cryogenic Straw Tubes

Cryogenic Structural Supports

Impeder Tubes Antennas Battery Casings Cylinder Tubes
High Voltage Fuse Tubes High Voltage Insulators Bushings

High Vacuum Pump Vanes

Rotary Compressor Vanes Air Motor Vanes Starter Motor Vanes

Pneumatic Tool Vanes

Friction Plates Truck Side Plates Center Pivot Liners Sliding Ways
Bearings Thrust Washers Shoe Beams Cams
Cam Followers Baffle Plates Arc Chutes

Electric Box Liners

Switch Insulation Bus Bar Supports Electrical Terminal Boxes

Electrical Grid Bushings

Door Guide Blocks Signage Plates Threshold Plates

Truck Cable Clamps

Sleeve Bearings Shaft Bearings Slipper Bearings

High-Temperature Sleeves

Neck Bearings Thrust Collar Bearings Spindle Carrier Bearings

Model Rocket Tubes

Roll Neck Bearings Bushing Liners Top Roll Rider Bearings

Model Rocket Bodies

Flat Back Bearings Rolling Mill Bearings Main Shaft Bearings

Artillery Sleeves

Self-Lubricating Bearings Low-Friction Bearings Marine Shaft Bearings

Rocket Body Tubes

Rocket Liners Rocket Sleeves Rocket Motor Tubes

Rocket Body Sleeves

Angle and Channel Insulation Mounting Boards Insulating Barriers

Tap Changer Terminal Board

Tap Changer Shafts Standoff Insulators Intermediate Plates

Electrode Arm Insulation

Square Washers Round Washers Split Bushings Disks
Angles Bus Tube Insulation Electrode Clamps Split Tubes
Isolator Pads Insulating Plugs Bolt Caps Bus Caps
Mast Arm Insulation Insulating Saddle Clamp Shoe Access Covers
Coil Forms Seals Rollers Saw Guides
Guide Rails Conveyor Parts Gears Sprockets
Conveyor Springs Slat Springs Vibratory Slats

Transfer Deck Wear Strips

Properties

Flame Rating
Physical Form
Physical Properties
ValueUnitsTest Method / Conditions
Bond Strength (0.500 inch thick, Condition A)1500.0lbsᎠ229
Compressive Strength (Flat wise, 0.500 inch)76000.0psiD695
Flexural Modulus (Cross wise)1400.0kpsi
Flexural Modulus (length wise)1800.0kpsi
Flexural Strength (Cross wise)50000.0psiᎠ229
Flexural Strength (length wise)55000.0psiᎠ229
Izod Impact Strength (0.500 inch thick, notch, cross wise)11.0ft-lb/inᎠ256
Izod Impact Strength (0.500 inch thick, notch, length wise)12.0ft-lb/inᎠ256
Moisture Absorptionmax. 2.0%Ꭰ229
Rockwell Hardness110.0Shore MᎠ785
Specific Gravity1.85Ꭰ792
Tensile Strength (Cross wise, 0.125 inch)34000.0psiD638
Tensile Strength (length wise, 0.125 inch)42000.0psiD638
Thickness0.62inch
Thermal Properties
ValueUnitsTest Method / Conditions
Coefficient of Thermal Expansion (x axis)15.0inch/inch/°C/ x 106
Coefficient of Thermal Expansion (y axis)18.0inch/inch/°C/ x 106
Flammability Rating94-HBUL 94
Temperature Index (Electrical)140.0°C
Temperature Index (Mechanical)170.0°C
Electrical Properties
ValueUnitsTest Method / Conditions
Arc Resistance (0.125 inch, Condition A)100.0secondsD495
Comparative Tracking Index (0.125 inch)150.0VD 3638
Dielectric Breakdown Voltage (step x step, D 48/50)40.0kVD229
Dielectric Breakdown Voltage (step x step, Condition A)55.0kVD229
Dielectric Strength (short time, Condition A)600.0VpmD 229
Dielectric Strength (short time, D 48/50)580.0VpmD 229
Maximum Dissipation (1 MHz, Condition A)0.02D 229
Maximum Dissipation (1 MHz, D 24/23)0.08D 229
Maximum Permittivity (1 MHz, D 24/23)8.0D229
Maximum Permittivity (1 MHz, Condition A)7.8D229

Regulatory & Compliance

Certifications & Compliance