TOYO HB-77,NF-77 Vulcanized Fibre----[[LIREN ELECTRICAL INSULATION MATERIALS]]

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TOYO Vulcanized Fibre

Description:

TOYO Vulcanized Fibre from Japan is a material manufactured by gelatinizing several plies of high purity cellulose papers. It has extremely high internal bond strength, and mechanically excellent punching, forming, machining and many other unique properties. TOYO proudly carries specialty grades to comply any application required by users, such as water resistant grades, flame retardant grades, combination grades etc. in roll, sheet and coil.

Main Types:

HB-77: This fibre uses original cotton fibre sheets as its raw material. The available colors are red, white, gray and black. It is the general used fibre which can be used for motors, speakers and other electrical appliances.

HB-77 Characteristic

Properties		Units	Typical Value
Nominal Thickness		mm	0.25,0.35,0.4,0.5,0.8,1.2,1.6,2.0,2.4,3.2,4,4.8,6.4,8,10
Density		g/cm³	1.15
Tensile Strength	MD	kgf/mm²	9.5
	TD	kgf/mm²	5.3
Dielectric strength		KV/mm	6.9
Water Absorption (Max)		% / 2hrs	52
		% / 24hrs	66
Ash content (Max)		%	Red	Grey	Black
			5	1	1
Zinc Chloride content		%	0.05

NF-77: NF-77 is a UL listed flame retardant vulcanized fibre with good tracking rate, high ampere-arc, and hot wire ignition rate.

It has almost the same workability as the standard grade, but can be easily flexed if slightly pre-heated.

Properties	Units	Value
Standard thickness	mm	0.25~1.6
Flame class		UL 94 V-0
Hot wire ignition	sec	min 300
High ampere-arc		min 200 times
Tracking	V	420
Heat deflection temp.	℃	120
Electrical insulation		Good

K-57 : K-57 is listed in Class E of Japan Electricity Regulation. It has an ideal incorporation of good workability of fibre and dimensional stability.

PRODUCT CATEGORY

The classification of our products listed below is based upon TOYO's recommendation as general purpose only.

Product Classification	Product Name	Available Color	UL Approved
General purpose, electrical & reinforced properties for mechanical requirement	HB-77	N, R, B, SW	Yes
	FP	DB	Yes
Flame Retardant	NF-77	N, R, B, SW	Yes
	NF-95FP	N, R, B, SW	Yes
	RNF-97FP	N, R, B, SW	Yes
Heat Resistance	K-57	N, R, B, SW	Yes
	RK-76	N, R, B, SW	Yes
	RK-76HB	N, R, B, SW	Yes
	RGFK-57	N	Yes
Water Resistance	RNFK-88	CH	Yes
	NFK-88	CH	Yes
	RNF-77	N,R,B,SW	Yes

Color Code
N = Natural (Grey)
R = Red
B = Black
SW = White
DB = Deep Blue
CH = Chocolate

Color Sample


N	R	B	SW

Note: These values are typical performance data for the products; they are not intended to be used as design data. TOYO is a registered trademark of TOYO FIBRE

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