CST (Asia) Limited中文版

Polymer Thick Film HOME > PRODUCT > Polymer Thick Film

PTF Conductive Paste

[A] Silver, Copper and Carbon conductive pastes for key-board and jumper circuit.
PRODUCT LS-504J ACP-051 TU-30SK TU-13SK-M
Applications Good conductivity for resistor termination Good conductive solderable copper Key contacts and cross over circuit Key contacts and cross over circuit
Conductor material Silver Copper Carbon Carbon/Graphite
Resin binder Phenol resin Phenol resin Phenol resin Phenol resin
Volume resistivity 1 × 10-5Ω·cm 1 × 10-4Ω·cm 3.5 × 10-2Ω·cm 2 × 10-2Ω·cm
Sheet resistance
(Printed thickness)
≤0.01Ω/□(15µm) ≤0.01Ω/□(50µm) 25~35 Ω/□(15µm) 15~20Ω/□(15µm)
Viscosity (25°C) 30~40Pa.s 50~60Pa.s 35~45Pa.s 35~45Pa.s
Screen mesh
(printed thickness)
200~250(15µm) 180(50µm) 150~200(15µm) 150~200(15µm)
Curing in box oven 150°C × 30min 150°C × 30min 150°C × 30min 150°C × 30min
Shelf Life
(10°C)
4 months 3 months 6 months 6 months
[B]Pastes for flexible substrate such as Membrane switch of Polyester film, Touch Panel switch, EL element and FPC applications.
PRODUCT LS-411AW LS-415C-M SW-1100-1 FTU-60N4-20
Applications ood conductivity widely used Low contact resistance to ITO film Excellent flexibility with good adhesion Good adhesion on polyester film
Conductor material Silver powder Silver powder Silver & Carbon Carbon
Resin binder Polyester Polyester Polyester Polyester
Volume resistivity 1 × 10-5Ω·cm 1 × 10-4Ω·cm 3.5 × 10-2Ω·cm 2 × 10-2Ω·cm
Sheet resistance
(Printed thickness)
≤0.01Ω/□(15µm) ≤0.01Ω/□(50µm) 25~35 Ω/□(15µm) 15~20Ω/□(15µm)
Viscosity (25°C) 30~40Pa.s 50~60Pa.s 35~45Pa.s 35~45Pa.s
Screen mesh
(Printed thickness)
200~250(15µm) 180(50µm) 150~200(15µm) 150~200(15µm)
Curing in box oven 150°C × 30min. 150°C × 30min. 150°C × 30min. 150°C × 30min.
Shelf Life
(≤25°C)
4 months 3 months 6 months 6 months

PTF Resistor Paste

High performance and excellent electric reliability for the printed resistor system.
PRODUCT TU-OO-5 TU-OO-8 BTU-OO-5 BTU-OO-7
Applications High temperature curing for ceramic Mid temperature curing for PWB Rotational resistor for ceramic board Excellent durability sensors/automobile.
Curing condition
(Type of oven))
260°C × 5min.
(Box oven)
250°C × 150sec.
(FIR conveyor)
260°C × 5min.
(Box oven)
170°C × 1hour
(Box oven)
(Box oven)
Initial resistivity tolerance
±10.0% ±10.0% ±10.0% ±10.0%
T.C.R. ±250ppm/°C ±300ppm/°C ±300ppm/°C ±300ppm/°C
Humidity test, 1000Hr
(60°C - 95%RH)
±3.0% ±5.0% ±5.0% ±5.0%
Solder dipping test
(260°C - 5sec.)
±5.0% ±5.0% ±5.0% ±5.0%
Shelf Life
(≤25°C)
6 months 6 months 6 months 6 months

PTF Insulating paste

PRODUCT CR-18C-CK
Main resin Polyester / Melamine
Application PET / PI film
Curing condition

130°C - 10min

Surface resistance 1012Ωcm
Thinner Solvent #60
  • Touch Panel Switch
  • Touch Panel Switch of PET film
Copyright (c) 2004 CST (Asia) Limited. All rights reserved. cst@cstco.corp.com.hk