Product Information

Technical Information : Shelf life, How long you can store an ink....

All the screen printing inks that we manufacture may chemically deteriorate the properties including the screenability after a certain period of time from date of manufacture.
In this technical information, each shelf life of the inks will be explained for the assistance in your ink handling.

Our ink Lot Number you can find on every container's label is telling you;

[ To take an instance, LOT NO. 81230612 ]

  • The top digit, 8 means A.D.1998.
  • The Triple figures in the middle, 123, shows our manufacturing control number.
  • The number 0612 of four figures at the bottom means Month and Date manufactured, is telling you June 12.
  • In case of fluorescent colors, the shelf life become short in large scale. The life is about 3 months.

That is to say, the ink with Lot No.81230612 was manufactured on July 12, 1998.

Ink Category Item Shelf Life Possible property depreciation after the shelf life run out
Vinyl LOV 24 mon. Hue shift, Gelled particle generation, Poor screenability.
ACT 18 mon. Hue shift, Gelled particle generation, Poor screenability, Container corrosion.
HIP 24 mon. Hue shift, Gelled particle generation, Poor screenability.
SG700 24 mon. Hue shift, Gelled particle generation, Poor screenability.
Only 513 permanent red may shift its color by 16 mo. after produced.
JET-V1 24 mon. Hue shift, Gelled particle generation, Poor screenability.
Only 513 permanent red may shift its color by 16 mo. after produced.
V-Lumino N 18 mon. Hue shift, Particles generation, Poor screenability.
Polyester PAL matte 24 mon. Hue shift and particles generation due to the component coagulation, Poor screenability.
All the transparent reddish colors may change their original color by 10 mon. after produced.
All the transparent colors including 320 Fast Green, 350 Green and 440 Blue may generate gelled particles by 18 mo. after produced.
Hardener
6 mon.		 Decline in hardening ability and gellation caused by the reaction with moisture in air.
The 6 month shelf life is allowed to a container unopened.
Use up the hardener as fast as possible once its container cap was opened.
GAP 24 mon. Hue shift, Poor screenability, Gelled particle generation, Container corrosion.
Hardener
6 mon.		 Decline in hardening ability and gellation caused by the reaction with moisture in air.
Use up the hardener as fast as possible once its container cap was opened.
RAM 24 mon. Hue shift, Gelled particle generation, Poor screenability.
Reddish colors may be shifted in 18 months.
Transparedt colors, 320 Fast Green, 350 Green and 440 Blue may generate gelled particles in 18 months.
Hardener
6 mon.		 Decline in hardening ability and gellation caused by the reaction with moisture in air.
The 6 month shelf life is allowed to a container unopened.
Once the container cap was opened, use up the hardener as fast as possible.
Acrylics and PC 2500 24 mon. Hue shift, Particles generation, Poor screenability.
All the transparent colors, 320 Fast Green, 350 Green and 440 Blue may generate gelled particles in 18 months.
CAV 24 mon. Hue shift, particles generation, Poor screenability.
All the transparent colors may generate gelled particles in 18 months.
ABS and PS ABS 24 mon. Hue shift, Particles generation, Poor screenability.
All the transparent colors may generate gelled particles in 18 months.
STR 24 mon. Hue shift, Particles generation, Poor screenability.
All the transparent colors may generate gelled particles in 18 months.
Urethane VIC 24 mon. Hue shift, Particles generation, Poor screenability.
All the transparent colors may generate gelled particles in 18 months.
Hardener
6 mon.		 Decline in hardening ability and gellation caused by the reaction with moisture in air.
Use up the hardener as fast as possible once its container cap was opened.
SG740 24 mon. Hue shift, Particles generation, Poor screenability.
All the transparent colors may generate gelled particles in 18 months.
Hardener
6 mon.		 Decline in hardening ability and gellation caused by the reaction with moisture in air.
Use up the hardener as fast as possible once its container cap was opened.
MS8 24 mon. Altering its color phase, Poor screenability, Gelled particles generation.
All the transparent colors may generate the heterogeneous particles.
Hardener
6 mon.		 Decline in hardening ability and gellation caused by the reaction with moisture in air.
Use up the hardener as fast as possible once its container cap was opened.
HAC 24 mon. Hue shift, Gelled particles generation, Poor screenability.
All the trans, colors may generate the particles.
Hardener
6 mon.		 Decline in hardening ability and gellation caused by the reaction with moisture in air.
Use up the hardener as fast as possible once its container cap was opened.
SG410 24 mon. Hue shift, Heterogeneous particles, Poor screenability generation.
All the reddish colors may shift the color phase in 18 months.
All the trans colors may generate the gelled particles.
Hardener
6 mon.		 Decline in hardening ability and gellation caused by the reaction with moisture in air.
Use up the hardener as fast as possible once its container cap was opened.
RUX 24 mon. Hue shift, Particles generation, Poor screenability.
All the trans colors may generate the heterogeneous particles.
Hardener
6 mon.		 Particle in hardening ability and gellation caused by the reaction with moisture in air.
Use up the hardener as fast as possible once its container cap was opened.
Polyolefine OP22 18 mon. Hue shift, Heterogeneous particles generation, Poor screenability.
It may gel during the winter season. However, it will easily be recovered upon heating or stirring.
60A 18 mon. Hue shift, Gelled particles generation, Poor screenability, Container corrosion.
It may gel during the winter season. However, it will easily be recovered upon heating or stirring.
PP 18 mon. Hue shift, Gelled particles generation, Poor screenability, Container corrosion.
It may gel during the winter season. However, it will easily be recovered upon heating or stirring.
PPT 18 mon. Hue shift, Heterogeneous particles generation, Poor screenability.
It may gel during the winter season. However, it will easily be recovered upon heating or stirring.
PP taisan 18 mon. Hue shift, Gelled particles generation, Poor screenability, Container corrosion.
It may gel during the winter season. However, it will easily be recovered upon heating or stirring.
Epoxy 1000 120 White
12 mon.		 Decline in hardening ability, Poor screenability.
Conc 120 White
8 mon.		 Decline in hardening ability, Poor screenability.
Other colors
15 mon.		 Decline in hardening ability, Poor screenability.
Hardener
6 mon.		 Decline in hardening ability and gellation caused by the reaction with misture in air.
The 6 month shelf life is allowed for the container unopened.
Use up the hardener as fast as possible once its container cap was opened.
1300 120 White
Conc 120 White
12 mon.		 Decline in hardening ability, Gelled particles generaion, Poor screen printing ability.
320 Fast Green
Conc 320 Fast Green
12 mon.		 Decline in hardening ability, Gelled particles generaion, Poor screen printing ability.
350 Green
Conc 350 Green
10 mon.		 Decline in hardening ability, Gelled particles generaion, Poor screen printing ability.
400 Ultra Blue
8 mon.		 Decline in hardening ability, Gelled particles generaion, Poor screen printing ability.
Other colors
18 mon.		 Decline in hardening ability, Gelled particles generaion, Poor screen printing ability.
To over come the hardening deterioration, add 1% of Catalyst H to the ink.
This will also prolong the shelf life.
1300HK 120 White
Conc 120 White
12 mon.		 Decline in hardening ability, Gelled particles generaion, Poor screen printing ability.
320 Fast Green
Conc 320 Fast Green
10 mon.		 Decline in hardening ability, Gelled particles generaion, Poor screen printing ability.
350 Green
Conc 350 Green
10 mon.		 Decline in hardening ability, Gelled particles generaion, Poor screen printing ability.
400 Ultra Blue
8 mo.		 Decline in hardening ability, Gelled particles generaion, Poor screen printing ability.
Other colors
18 mon.		 Decline in hardening ability, Gelled particles generaion, Poor screen printing ability.
To over come the hardening deterioration, add 1% of Catalyst H to the ink.
This will also prolong the shelf life.
1690N 120 White
12 mon.		 Decline in hardening ability, Gelled particles generaion, Poor screen printing ability.
Conc 120 White
6 mon.		 Decline in hardening ability, Gelled particles generaion, Poor screen printing ability.
Other colors
15 mon.		 Decline in hardening ability, Gelled particles generaion, Poor screen printing ability.
Hardener
6 mon.		 Decline in hardening and gellation leading to the poor screenability caused by the reaction with moisture in air.
The 6 month shelf life is allowed for the container unopened.
Use up the hardener as fast as possible once its container cap was opened.
Polyester ink for
metal substrate 		1400N 120 White
Conc 120 White
12 mon.		 Decline in hardening ability, Gelled particles generaion, Poor screen printing ability.
320 Fast Green
Conc 320 Fast Green
10 mon.		 Decline in hardening ability, Gelled particles generaion, Poor screen printing ability.
350 Green
Conc 350 Green
10 mon.		 Decline in hardening ability, Gelled particles generaion, Poor screen printing ability.
400 Ultra Blue
8 mon.		 Decline in hardening ability, Gelled particles generaion, Poor screen printing ability.
Other colors
18 mon.		 Decline in hardening ability, Gelled particles generaion, Poor screen printing ability.
To over come the hardening deterioration, add 1% of Catalyst H to the ink.
This will also prolong the shelf life.
Refrain from an excess addition if Catalyst H as it may lead to the poor adhesion.
Alkyd 400 18 mon. Right after the packing, an insoluble oxidized skin uses to be formed at the upper layer of the ink in the container. Use only the ink under the skin.
500 18 mon. Right after the packing, an insoluble oxidized skin uses to be formed at the upper layer of the ink in the container. Use only the ink under the skin.
Hardener
10 mon.		 Hardening deterioration caused by the reaction with oxygen in air.
The 10 month shelf life is allowed for the container unopened.
Use up the hardener as fast as possible once its container cap was opened.
Poster 100 18 mon. After the manufacturing and packing, an insoluble oxydized skin uses to be formed at the upper layer of the ink in the container.
Use only the part under the skin.
JRP・PRO 24 mon. Hue shift and gelled particles generation caused by the components coagulation leading to the poor screenability.
SAM-N 24 mon. Hue shift and gelled particles generation caused by the components coagulation leading to the poor screenability.
MSG 24 mon. Hue shift and gelled particles generation caused by the components coagulation leading to the poor screenability.
Overcoating clear 8600 24 mon. Poor screen printing ability.
Hardener
6 mon.		 Deterioration in hardening the 6 month shelf life is allowed for the container unopened.
Use up the hardener as fast as possible once its container cap was opened.
SG425 24 mon. Poor screen printing ability.
Hardener
6 mon.		 Hardening deterioration caused by the reaction with moisture in air.
The 6 month shelf life is allowed for the container unopened.
Use up the hardener as fast as possible once its container cap was opened.
SG429 24 mon. Poor screen printing ability.
Hardener
6 mon.		 Hardening deterioration caused by the reaction with moisture in air.
The 6 month shelf life is allowed for the container unopened.
Use up the hardener as fast as possible once its container cap was opened.
Specialized lines SOF 24 mon. Hue shift, Gelled particles generation and poor screen ability caused by the components coagulation.
Mirro Effect Ink 6 mon. Deterioration in the mirror effect and adhesion.
Mirro Effect Ink NO.3 6 mon. Deterioration in the mirror effect and adhesion.
In a month or so, the color shade may happen to be shifted.
Stir well for the recovery.
UV curing ink UVA 12 mon. Hue shift, Gelled particles generation and Poor screen printing ability caused by the components coagulation. For the matte finish products of UVA, the mattness may shift.
HUG 12 mon. Hue shift, Gelled particles generation and Poor screen printing ability caused by the components coagulation. For the matte finish products of UVA, the mattness may shift.
RIG 12 mon. Hue shift, Gelled particles generation and Poor screen printing ability caused by the components coagulation. For the matte finish products of UVA, the mattness may shift.
PZU 12 mon. Hue shift, Gelled particles generation and Poor screen printing ability caused by the components coagulation. For the matte finish products of UVA, the mattness may shift.
TJN 12 mon. The gelled particles generation and Poor screen ability caused by the components coagulation.
The shrinking pattern may shift.
UV 24 mon. The gelled particles generation and Poor screen ability caused by the components coagulation.
For the matte finish products of UV, the mattness may shift.
Solvents Thinners 12 mon. Fall in resin solvilizing ability due to the denature and yellowing.
Additives CAREs 18 mon. Deterioration of the properties caused by the decomposition.
Hardeners
Catalysts		 6 mon. Decline in the properties by the reaction with moisture and oxygen in air.


Contact us

Control center / Saitama factory
Technical Div.
screenink@seikoadvance.co.jp
TEL　048-766-4511
Product Information