FABRIC PHENOLIC LAMINATE
FABRIC PHENOLIC LAMINATES sheets are made with various weights of woven cotton fabric, impregnated with specifically formulated phenolic resins, bonded together under heat and pressure to produce a thermoset composite.
* Offers superior machining, punching, and chemical resistance characteristics under high temperature.
* The parts made of fabric phenolic composites deliver a high MTBF (Mean-time Before Failure), quieter operation in lubricated and non- lubricated applications and long life in wear-prone applications.
Specification :
| Thickness | 10-50mm |
| Usage/Application | Electrical Insulation |
| Material | Backelite |
| Pattern | Plain |
| Density | 1.3-1.4 gm/cm3 |
| Tensile Strength | 200-600MPA |
Technical Data Sheets
| Properties | Unit | Grade | Fabric Phenolic | Fabric Phenolic | Fabric Phenolic | Fabric Phenolic | Fabric Phenolic | |||||
| IS 2036:1995 | F1 | F2 | F3 | F4 | F5 | |||||||
| NEMA LI 1-1983 | Material Description | L | C | CE | LE | |||||||
| IEL | IF-2001 | IF-2002 | IF-2003 | IF-2004 | IF-2005 | |||||||
| Testing Standard IS 2036:1995 | ||||||||||||
| 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 | |
| Cross Breaking Strength | Mpa | Not less than 1.6 mm | 145 | 135 (min) | 135 | 110 (min) | 110 | 100 (min) | 110 | 100 (min) | 110 | 100 (min) |
| Tensile Strength | ||||||||||||
| Shear Strength | Mpa | Less than 1.6 mm | 70 | 65(min) | 70 | 65(min) | 70 | 65(min) | 65 | 60(min) | 70 | 65(min) |
| Compression Strength | ||||||||||||
| Impact Strength | KJ/m2 | Not less than 5.00 mm | 8.0 | 6 (min) | 10 | 7.2 (min) | 10.5 | 8.8 (min) | 10 | 7.0 (min) | 8.0 | 6.0 (min) |
| Electrical Properties | ||||||||||||
| Electrical Strength (Flatwise) | MV/m | Not more than 3.00 mm | Complies | Complies | Complies | Complies | Complies | Complies | Complies | Complies | Complies | Complies |
| Electrical Strength (Edgewise) | KV | More than 3.00 mm | Complies | 2.0 (min) | Complies | 1.00 (min) | Complies | 1.00 (min) | Complies | 15 (min) | Complies | 20 (min) |
| Insulation Resistance | M.ohms | Not more than 25 mm | 5.00 | 1.00 (min) | 4.00 | 0.5 (min) | 4.00 | 0.5 (min) | 100.00 | 50 (min) | 180.00 | 150 (min) |
| Water Absorption (1.6mm) | mg | (all thickness) | 160 | 220 (max) | 160 | 220 (max) | 160 | 220 (max) | 105 | 145 (max) | 105 | 145 (max) |
| Specific Gravity | Grams/CC | 1.33 | 1.33 | 1.35 | 1.35 | 1.36 | 1.36 | 1.36 | 1.36 | 1.33 | 1.33 | |