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Copper Clad Laminate sheets are manufactured by pressing layers of filler material, impregnated with specifically formulated phenolic resins, bonded together under heat and pressure with electro-deposited copper foil to produce a thermoset composite.
Offers excellent electrical, mechanical, moisture & heat resistance properties and are suitable for hot/cold punching.
The electrical and mechanical properties of laminates are affected by environmental factors such as humidity, temperature, corrosive atmosphere etc.
| Grade | XPC |
| Color | Natural (Translucent or Opaque) |
| Thickness Range | 0.8mm - 1.6mm (upto any thickness) |
| Characteristics | - Intended for cold punching and shearing at room temperature. - Good dielectric strength. |
| Applications | - T.V. - Fan Regulators - Oscilloscopes - Structural parts, Signal Generators - Calculators - Radios & Tape Recorders etc. |
| Grade | XXP |
| Color | Natural (Translucent or Opaque) |
| Thickness Range | 0.8mm - 1.6mm (upto any thickness) |
| Characteristics | - High insulation - High mechanical strength - Low dissipation factor - Low moisture absorbency. |
| Applications | - Communication and measuring instruments - T.V. (B&W) - Carrier Current Devices etc. |
| Grade | XXPC |
| Color | Natural (Translucent or Opaque) |
| Thickness Range | 0.8mm - 1.6mm (upto any thickness) |
| Characteristics | - High insulation - Moisture Proof - Easy Punchable at room temperature. |
| Applications | - Communication and measuring instruments - T.V. (B&W) - Carrier Current Devices etc. |
| Grade | XXXP |
| Color | Natural (Translucent or Opaque) |
| Thickness Range | 0.8mm - 1.6mm (upto any thickness) |
| Characteristics | - Fire-retardant. - Easily punchable at room temperature. |
| Applications | - Colour T.V. sets - VCR, Aerospace - Communication equipment - Satellite instruments - Analytical Electrical Instruments etc. |
| Grade | XXXPC |
| Color | Natural (Translucent or Opaque) |
| Thickness Range | 0.8mm - 1.6mm (upto any thickness) |
| Characteristics | - Fire Retardent |
| Applications | - Colour T.V. sets - VCR - Aerospace - Communication equipment - Satellite instruments - Analytical Electrical Instruments etc. |
Paper Phenolic Laminate sheets are made from layers of paper, impregnated with specifically formulated phenolic resins, bonded together under heat and pressure to produce a thermoset composite. Both paper and resins can be modified to change the finished properties of the final laminate.
Offers enhanced mechanical, electrical, electrostatic dissipative or fire performance.
The properties and cost-effectiveness of these products often make them insulators of choice in low/high-voltage, dry service electrical equipment.
| Grade | P-4 |
| Color | Natural Translucent or Opaque |
| Thickness Range | 0.8mm - 100mm |
| Characteristics | - Possesses exceptional electrical properties even under humid conditions, very low water - Absorption and excellent hot punching properties. - Specially made for high frequency applications. |
| Applications | - Cross bar switches - Meter Fuses - Band change - Switch insulation in X-ray equipments etc. |
| Properties | Unit | Grade | Paper Phenolic | Paper Phenolic | Paper Phenolic | Paper Phenolic | Paper Phenolic | Paper Phenolic | ||||||
| IS 2036:1995 | P1 | P2 | P3 | P4 | P3 | P4 | ||||||||
| NEMA LI 1-1983 | XP | XXP | XXXP | XXXXP | FR 1 | FR 2 | ||||||||
| IEL | IP 5001 | IP 5002 | IP 5003 | IP 5004 | IP - 222 | IP - 555 | ||||||||
| Mechanical Properties | Test Applicable for Thickkness | IEL AVG. VALUE | LIMITING VALUE | IEL AVG. VALUE | LIMITING VALUE | IEL AVG. VALUE | LIMITING VALUE | IEL AVG. VALUE | LIMITING VALUE | IEL AVG. VALUE | LIMITING VALUE | IEL AVG. VALUE | LIMITING VALUE | |
| Cross Breaking Strength | Mpa (min) | Not less than 1.6 mm | 140 | 130 ( min) | 140 | 130 ( min) | 100 | 85 ( min) | 100 | 70 ( min) | 100 | 85 ( min) | 90 | 70 ( min) |
| Tensile Strength | ||||||||||||||
| Shear Strength | Mpa (min) | Less than 1.6 mm | 85 | 75(min) | 80 | 70(min) | 65 | 60 (min) | 65 | 60 (min) | 65 | 60 (min) | 65 | 60 (min) |
| Electrical Properties | ||||||||||||||
| Electrical Strength (Flatwise) | MV/m | Not more than 3.00 mm | NA | Complies | Complies | Complies | Complies | Complies | Complies | Complies | Complies | Complies | Complies | |
| Electrical Strength (Edgewise) | KV | More than 3.00 mm | - | Complies | 20 (min) | Complies | 25 (min) | Complies | 30 (min) | Complies | 25 (min) | Complies | 30 (min) | |
| Insulation Resistance | M.ohms | Not more than 25 mm | 5 | 1 (min) | 15 | 10 (min) | 2500 | 1000 (min) | 35000 | 30000 (min) | 3000 | 1000 (min) | 40000 | 30000 (min) |
| Water Absorption (1.6 mm) | mg | (all thickness) | 300 | 478 (max) | 280 | 426 (max) | 50 | 76 (max) | 35 | 43 (max) | 50 | 76 (max) | 35 | 43 (max) |
| Specific Gravity | Grams/CC | 1.34 | 1.34 | 1.36 | 1.36 | 1.35 | 1.35 | 1.34 | 1.34 | 1.35 | 1.35 | 1.34 | 1.34 | |
| Flame Resistance | Class | UL-94 | N A | N A | N A | N A | N A | N A | N A | N A | V-1 | V-1 | V 0 | V-1 |
| Grade | P-2 |
| Color | Blackish Red |
| Thickness Range | 0.8mm - 100mm |
| Characteristics | - Delivers a combination of superior electrical and mechanical properties. - Ideal for general electrical applications in dry atmospheric conditions or in oil. |
| Applications | - Transformer covers - C.B. Handles & Side frames - Distribution boards - Fuse Holder base etc. |
| Grade | P-3 |
| Color | Natural Translucent or Opaque |
| Thickness Range | 0.8mm - 100mm |
| Characteristics | - Possesses very good electrical properties even under humid conditions and adequate mechanical properties like low water absorption, machining and hot punching. - Suitable for high tension electrical applications at power frequencies. |
| Applications | - Transformers and Choke Bobbins - Relay Spacers - HV Transformer - Tap Changers - Grid covers - Selector Band insulation etc. |
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