GENERAL PROPERTIES

WHITENESS
	Every grade has high whiteness.
FINE PARTICLE
	Nipsil is composed of fine micron particles and does not contain any rough particles.
PARTICLE SIZE DISTRIBUTION
	Nipsil offers a variety of grades with different particle sizes of which distribution sets in a considerably narrow range.
WEAK AGGREGATION
	Surface activity is controlled to suppress the aggregation of particles, which enables easy dispersion into variation
LOW MOISTURE PICK-UP
	The number of exposed silanol groups is controlled to make moisture pick-up as little as possible.
HIGH OIL ABSORPTION
	Nipsil maintains the nature of amorphous precipitated silica which has high ability to absorb liquid media.
REFRACTIVE INDEX
	As the RI number of Nipsil (about 1.45) is very close to that of various resins and paints, it guarantees high transparency.
CHEMICAL STABILITY
	Due to the high purity of Nipsil, it maintains chemical stability except by fluoric acid and strong alkaline chemicals
SURFACE TREATMENT
	By treating the exposed silanol groups with various chemicals, some grades offer unique properties of anti- precipitation and improved coating surface.
TOXICITY
	Nipsil is a so-called amorphous high purity silica, being completely different from crystalized silica such as asbestos, and therfore, it can not be the cause of silicosis and does not have any toxic nature

TYPICAL PHYSICAL PROPERTIES

GRADES	pH (4% Susp)	Bulk density (g/l)	Specific surface area (㎡/g)	Oil absorption (ml/100g)	Average particle size (㎛)
Nipsil E-150J	6.0-7.5	90-130	80-100	170-220	3.5-4.5
Nipsil E-170	6.0-7.5	65-95	100-120	240-265	2.5-3.5
Nipsil E-200	6.0-7.5	55-75	100-130	240-260	2.5-3.5
Nipsil E-220	6.0-7.5	30-50	100-130	240-260	1.0-2.0
Nipsil E-200A	6.0-7.5	35-55	130-155	240-260	2.0-3.0
Nipsil E-220A	6.0-7.5	30-45	130-155	240-260	1.0-2.0
Nipsil K-300	5.5-7.0	25-40	190-220	250-280	1.5-2.5
Nipsil E-1009	6.0-7.5	40-60	130-150	240-260	2.0-3.0
Nipsil E-1011	6.0-7.5	25-45	130-150	240-260	1.0-2.0
Nipsil E-1030	6.0-7.5	100-130	80-100	170-220	3.5-4.5
Nipsil ST-4	6.0-8.0	90-130	80-100	170-220	3.5-4.5
Nipsil E-75	6.0-8.0	100-140	30-50	120-150	1.5-2.5
Nipsil E-150K	6.0-7.5	100-140	80-100	170-220	4.0-5.0
Nipsil E-743	7.0-8.5	70-90	30-50	150-170	1.0-1.7
Nipsil E-74P	6.0-8.0	50-80	30-55	180-200	2.0-3.5
Nipsil L-250	8.0-9.0	30-50	160-240	180-200	1.5-2.5
Nipsil G-300	10.0-11.0	45-65	90-140	240-260	1.8-2.3
Nipsil N-300A	5.5-6.5	25-35	140-170	240-280	1.5-2.5
Nipsil HD	5.5-6.5	15-30	240-280	230-270	1.5-2.5
Nipsil HD-2	6.0-7.5	30-60	260-330	210-260	2.5-3.5

※Specific surface area : BET method
※Average particle size : Coulter Counter method

GRAPHS

Ⅰ. Moisture Content	Ⅱ. Flatting Efficiency
Decrease in weight after heating	Aminoalkyd Clear (Acid Hardner)
at 105℃, 2 hours
Ⅲ. Agglomerate Particle Size Distribution Measurement	Ⅳ. Thermal Gravity
Coulter Counter	Rise in temperature 10℃/min
	Decrease in weight(%)
	=Decrease in weight/sample×100