FIBRA VULCANIZZATA
Vulcanized Fibre is a strong and light industrial material, and has high impact resistance.
Good dielectric strength and high arc resistance.
Can be formed, punched and machined.
Vulcanized Fibre comes from pure first quality COTTON cellulose (not wood pulp), processed (vulcanized) by zinc chloride (residual < 6 p.p.m.), with extremely interesting mechanical characteristics, machinable antistatic by definition, diamagnetic, electric insulator, following the rules DIN 7737 (Japan JIS C2315).
Non-toxic and inert, Vulcanized Fibre is dangerous emissions free, even if burned or inhaled (powder) being 100% cotton, so completely ecological and eco-friendly on waste disposal. Suitable for different applications and fields, Vulcanized Fibre is used as slot insulator on electric motors, for mechanical and insulating supports, washers and mechanical sleeves, self-lubricating sliding guides, silent gears and for explosive or fiammable environments, special gasket even for steam, tablets for jacquard harness on textile, knives, etc.
Very resistant to heavy rubbing, becoming polished by friction, Vulcanized Fibre allows easy sliding of friction parts. Workable like a metal, is right for cutting, punching, drilling, milling and stretch-forming by steam. Very stable dimensionally, Vulcanized Fibre is not attached oil, grease and acids, being hygroscopic material, therefore is deformable in water.
COILS (NO CORE)
| d inside diameter | MIN 76 mm MAX 450 mm |
| D Outside diameter | MAX 850 mm |
| W Tape Width Extra narrow 2,8 ~ 13 mm Standard widths 13.1 ~ 1350 mm | |
| T Thickness | from 0,25 mm up to 2 mm included |
Stripes(long 2000 mm abt.)
| Thickness | from 1,5 mm up to 3 mm included |
| ITEM | DIRECT | UNIT | VALUE | ||
| DENSITY | g/cm | 1.1~1.4 | |||
| SPECIFIC HEAT | Kcal/Kg°C | 0.4 | |||
| CONEFFICIENT OF LINEAR EXPANSIOPN | mm/m 100°C | 2.5~2.8 | |||
| THERMAL CONDUCTIVITY | Kcal/mh°C | 0.21~0.26 | |||
| HEAT RESISTANCE CONTINUOUS | °C | 110 | |||
| WATER ABSORPTION | % | 5~18 | |||
| MOISTURE CONTENT | % | 7~9 | |||
| TESSILE STRENGTH | MD | kgf/mm² | 8~12 | ||
| CD | kgf/mm² | 5~8 | |||
| COMPRESSION STRENGTH | kgf/mm² | 17~26 | |||
| FLEXURAL STRENGTH | MD | kgf/mm² | 15~20 | ||
| CD | kgf/mm² | 13~15 | |||
| IMPACT STRENGTH | MD | kgf/cm/cm | 35~45 | ||
| CD | kgf/cm/cm | 25~30 | |||
| ELASTIC MODULUS | kgf/cm² | 5 x 10 | |||
| HARDNESS | ROCKWELL | R80~110 | |||
| INSULATION RESISTANCE | Ω cm | 6x10 | |||
| BREAKDOWN VOLTAGE | KV/mm | 6~12 | |||
| DIELECTRIC VONSTANT (1 KHz) | sec | 4~7 | |||
| POWER FACTOR (60KHz) | 0.03~0.08 | ||||
| ARC RESISTANCE | sec | 120~140 |
Washers, Terminal Block Cover, Insulating Plates and Switch Covers, Arc Barriers, Slot Insulation, Metal Boxliners etc.
COLOURS AVAILABLE
| G | Grey |
| R | Red |
| B | Black |
| WH | White |
| CH | Chocolate |
| B | Blue |
| C | Combined |
K-57 (Kensite)
K-57 (Kensite) is listed in Class E of Japan Electricity Regulations. It has an ideal incorporation of good work ability of fibre and dimensional stability.
PROPERTIES:
Heat resistance
Water resistance
Dimensional stability
SPECIFIC DATA: K-57
| Color | Grey |
| Standard thickness | 0.5 ~ 3.0 mm (0.020 ~ 0.118") |
| Temperature index | Class E |
| Heat resistance *(40,000 hrs) | 120°C |
| Heat resistance (JIS K6911) | 200°C |
| 1 hr.water absorption | Below 10% |
| UL 94 Flame Class | HB |
| Electrical insulation | Good |
| Arc resistance | 130 ~ 140 sec |
| Bending 0.5 mm 1.0 mm |
3R 6R |
K-80
K-80 is made from highly refined cotton cellulose with special resin treatment. It has extra high heat resistance, registered in Class E (120°C) of japan Electricity Regulation.
SPECIFIC DATA: K-80
| Color | Grey |
| Standard thickness | 0.5 ~ 3.0 mm (0.020 ~ 0.118") |
| Temperature index | Class E |
| Heat resistance *(40,000 hrs) | 120°C |
| Heat resistance (JIS K6911) | 200°C |
| 1 hr.water absorption | Below 10% |
| UL 94 Flame Class | HB |
| Electrical insulation | Good |
| Arc resistance | 130 ~ 140 sec |
| Bending 0.5 mm 1.0 mm |
3R 6R |
RK-76
High quality Urethane resin for electric insulation is coated on both sides of K-57
PROPERTIES:
Resistance to Water, Moisture and Arc. High tracking rate. Workability in punching.
SPECIFIC DATA: RK-76
| Color | Grey |
| Standard thickness | 0.35 ~ 1.6 mm (0.014 ~ 0.063") |
| Temperature index | Class E |
| Heat resistance *(40,000 hrs) | 120°C |
| Heat resistance (JIS K6911) | 200°C |
| 1 hr.water absorption | Below 10% |
| UL 94 Flame Class | HB |
| Electrical insulation | Excellent |
| Arc resistance | 130 ~ 140 sec |
| Bending 0.5 mm 1.0 mm |
3R 6R |
RGFK-57
RGFK-57 is an ideal composite of high quality cotton cellulose and glass filaments with resin coating on both sides.
Excellent in dimensional stability and heat resistance, especially no "blistering" takes place in high temperature.
SPECIFIC DATA: RGFK-57
| Color | Grey |
| Standard thickness | 1.0 ~ 1.6 mm (0.039 ~ 0.063") |
| Temperature index | Class E |
| Heat resistance *(40,000 hrs) | 120°C |
| Heat resistance (JIS K6911) | 240°C |
| 1 hr.water absorption | Below 10% |
| UL 94 Flame Class | HB |
| Electrical insulation | Excellent |
| Arc resistance | 140 sec |
| Bending 0.5 mm 1.0 mm |
... 10R |
NF-77
NF-77 (UNFLA) is a UL listed flame retardant vulcanized fibre. It has almost the same workability as the standard grade, but can be easily flexed if slightly pre-heated.
PROPERTIES:
Tracking rate
Heat resistance
Hot wire ignition rate
SPECIFIC DATA: NF-77
| Color | Grey, Red, Black, White |
| Standard thickness | 0.25 ~ 1.6 mm (0.010 ~ 0.063") |
| UL 94 Flame Class | Grey V-0 Other Colors V-1 |
| Hot wire ignition | 300 sec minimum |
| High ampere-arc | 200 times minimum |
| Tracking | 420v |
| 1 hr. water absorption | ... |
| Electrical insulation | Good |
| Bending 0.5 mm 1.0 mm |
2R 5R |
NFK-88
NFK-88 (UNFLA-SUPER) is a water-resistant and flame-retardant vulcanized fibre, UL listed.
PROPERTIES:
Heat resistance
Tracking rate
Heat resistance
Hot wire ignition rate
SPECIFIC DATA: NFK-88 (Unfla Super)
| Color | Chocolate |
| Standard thickness | 0.35 ~ 1.0 mm (0.014 ~ 0.039") |
| UL 94 Flame Class | V-1 |
| Hot wire ignition | 300 sec minimum |
| High ampere-arc | 200 times minimum |
| Tracking | 470v |
| Heat deflection temp. | 200°C |
| 1 hr. water absorption | Below 10% |
| Electrical insulation | Good |
| Bending 0.5 mm 1.0 mm |
5R 9R |
RNF-77
High grade of flame retardant Urethane resin is coated on both sides of NF-77.
PROPERTIES:
Moisture resistance
Dielectricity
SPECIFIC DATA: RNF-77
| Color | Grey |
| Standard thickness | 0.25 ~ 1.6 mm (0.010 ~ 0.063") |
| UL 94 Flame Class | 0.8mm >= V-0 (0.031") 0.8mm < V-1 (0.031") |
| Hot wire ignition | 300 sec minimum |
| High ampere-arc | 200 times minimum |
| Tracking | 420v |
| Heat deflection temp. | 120°C |
| 1 hr.water absorption | Below 10% |
| Electrical insulation | Excellent |
| Bending 0.5 mm 1.0 mm |
2R 5R |
RNFK-88
High grade of flame-retardant Urethane resin is coated on both sides of RNFK-88.
PROPERTIES:
Heat resistance
Moisture resistance
Dielectricity
SPECIFIC DATA: RNFK-88
| Color | Chocolate |
| Standard thickness | 0.35 ~ 1.0 mm (0.014 ~ 0.063") |
| UL 94 Flame Class | V-1 |
| Hot wire ignition | 300 sec minimum |
| High ampere-arc | 200 times minimum |
| Tracking | 470v |
| Heat deflection temp. | 200°C |
| 1 hr.water absorption | Below 10% |
| Electrical insulation | Excellent |
| Bending 0.5 mm 1.0 mm |
5R 9R |
VF-67
VF-67 is a laminated fibre of thin fibre sheets. It has good mechanical workabilities and has wide applications not only for electrical insulation but also mechanical and structural purposes.
PROPERTIES:
Resistance to impact, wear, arc, oil and heat.
Excellent dimensional stability
SPECIFIC DATA: VF-67
| Density | g/cm³ | 1.35~1.45 | |
| Hardness | HRR | 90~110 | |
| Water absorption (24 hrs.) |
% | 2> | |
| Tensile strength | MD CD |
kgf/mm² | 7~10 4~6 |
| Bending strength | MD CD |
kgf/mm² | 13~16 11~13 |
| Impact strength (IZOT) | MD CD |
kgf-cm/cm | 25~32 15~25 |
| Compressive srength | kgf/mm² | 25~31 | |
| Breakdown voltage | KV/mm | 7~13 | |
| Electrical resistance (Normal) (Boiling) |
Ω | 10 10 | |
| Arc resistance | sec | 130~140 |
HILON
Vulcanized fibre combination materials are called "Hilon". The diverse properties of vulcanized fibre can be further increased by combining with other materials such as polyester films, metal foils, rubber, etc.
APPLICATIONS:
Electric insulation
Electromagnetic wave shielding
Sealing
SPECIFIC DATA: HILON 5025
(Polyester film 50 micron + vul.fibre 0.25 mm)
| Density | g/cm² | 1.2~1.3 | |
| Tensile strength | MD CD |
kgf/mm² | 8~10 4~6 |
| Edge tearing resistance | MD CD |
kgf/20mm | 30~35 24~28 |
| Breakdown voltage | KV | 10~12 | |
| Ply adhesion | kgf/20 mm wide | 1.0< | |
| Bending | mm | 3R | |
| Arc resistance | sec | 140 | |
| Adhesion after heating (130°C/4 hrs.) |
excellent | ||
| Adhesion after steaming (40°C/90%24hrs.) |
excellent |
ABRASIVE BACKINGS
Toughness, high tear strnght, excellent internal ply adhesion, high temperature resistance of vulcanized fibre abrasive quality can provide firm flexible backing for abrasive disc.
Vulcanized fibre can be supplied in trimmed or untrimmed rolls or cut-to-size sheets as required by the customer.
Maximum trimmed roll width: 1,350 mm (53.1")
Maximum roll diameter: up to 1,070 mm (42.1")
| Grade & Thickness: | Standard thickness * mm | ||
| GBR(olive/ chocolate brown) | 0.5 | 0.8 | 1.0 |
Physical properties (Abrasive grade GBR O.8)
| Thickness | Tolerance | Density | Tensile strenght | Ply adhesion |
| (mm) (inches) | (mm) (inches) | (g/cm3) | (kgf/15 mm) CD | (kgf/25 mm) |
| 0.8 (0.31) | 0.74 ~ 0.0.29 ~ 0.86 0.034 |
1.2 =< | 70 =< | 2.7 =< |