Polyol for ISF

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Product Description

Product Description

ROYAL INDUSTRIES

Manuf. Of the Polyol Systems & Allied Products

TECHINICAL DATA SHEET

GEPEX-376-I Polyol

SUPRASEC-2030 Isocyanate

DESCRIPTION

Polyurethane foaming system, 100% CFC 11 free, for the production of semirigid integral skin foams with molded density of 300-600 g/l and skin hardness of 60-70 Shore A.

It is suitable to mold saddles for bicycle and items for furniture.

TYPICAL PROPERTIES

	Unit	SUPRASEC -2030 Isocyanate	GEPEX -276-I Polyol
OH Number	mg KOH/g	----	156
0NCO content	%	28,5	----
Colour		dark brown	Black
Viscosity at 25 C/20C	mPa.s	125	780
Specific Gravity 25C/20C		1.210	1.050
Storage Temperature	C	15-25	15-25
Storage stability (1)	months	6	4

(1) Stored in the original sealed drums in a dry place at the recommended temperature

METERING RATIO

Parts by weight

Recommended metering range Iso/Pol 40/100 - 45/100

REACTION CHARACTERISTICS (at 20C component temperature)

Actual values vary depending on processing conditions.

	Unit	Handmix	Low pressure machine	High pressure machine
Cream time	sec	17-23	14-20	10-16
Gel time	sec	38-48	35-45	30-40
Rise time	sec	47-57	42-52	37-47
Free rise density	Kg/m³	110-130	95-115	90-110

PROCESSING CONDITIONS

Polyol ingredients may separate in different layers, therefore each drum must be properly mixed before use. The moldability of the depends largely on the above operation. Molds must be treated with a proper release agent.

Components temperature C	Iso/Pol 20-25C
Molds temperature C	35-45
Demolding time min	230

TYPICAL PHYSICAL PROPERTIES

		Core*	Skin	Global
Density	Kg/m³	228	726	300
Tensile strength	Kg/cm²	11	70		DIN 53504
Tear strength	Kg/cm	2	13		DIN 53575
Elongation at break	%	130	140		DIN 53504
Hardness at 23C	ShoreA			65-70	ASTM D 2240
Compression Set (50%) 22h/79C	%				ASTM D 3574/86
C.L.D. (50%)	Kg/cm²			1.6	ASTM 2406/68