Flexible Solder Resist Ink For FPCB (LPISM/UV/IR Ink)


This is an alkaline developing type of liquid solder resist ink. 
This is most suitable for flexible printed circuit boards.

Division

SPI-606 Series

SFR-600

SUF-20□

Color

Green, Yellow, S Blue, Black

Green, White

Transparent, Green, Blue, Black

Viscosity(25˚C, VT-04F) PS

150~250

200~350

80~150

Pot-life after the mixing at 20˚C

8 hr

24hr

24hr

Pencil hardness

≥ 4H

≥2H

Adhesion (JIS D0202)

100/100 (PET)
100/100 (PI)
100/100 (Cu)

Curing condition

400~700mJ
150˚CX 50 min

120˚C X 60~90 min

UV Curing(1500mJ)

Resistance to molten
solder

260˚C X 10sec , 3times

260˚C X 5sec , 1times

Flexicility (after 180degrees bending)

No Crack(1 pass)

Acid Resistance
(10Vol% H₂SO₄, 20˚C)

≥ 30 min

Alkali Resistance
(5wt% NaOH, 20˚C)

≥ 30 min

Electroless gold plating

Passed
( Ni 3㎛ , Au 0.03㎛)

-

-

Surface Resistance
(40˚C, 90% RH, 240hr)

1011Ω

Shelf life(20˚C in a dark Place)

6 months

Major Features

Flexible PSR Ink

Excellent Adhesion Plating Resist(Ni/Ag)

Flexible UV Ink

* Packing Unit : 1, 4 Kg