SILICONEVALLEY CO., LTD

Thermally Conductive Encapsulant

Product Properties
Uncured Properties Unit SV-PTG100 SV-PTG250
A B A B
Base Material - Silicone Free Silicone Free
Appearance - White Dark gray White Dark gray
Viscosity (at 23℃) cps 50,000 300,000 70,000 450,000
Mix ratio by weight - 1 : 1 1 : 1
Pot Life ( at 25℃ ) minutes < 30 < 30
Cure Time ( at 25℃ ) Hour 48 48
Shelf Life ( at 25℃ ) months 6 6 6 6
Cured Properties Unit SV-PTG100 SV-PTG200
Appearance (Mixed) - Gray Gray
Hardness Shore 00 80±10 80±10
Specific Gravity - 2.2 2.7
Dielectric strength KV/mm 10 10
Volume Resistivity Ω·㎝ 10¹² 10¹²
Continuous Use Temp. -40~80 -40~80
Thermal Conductivity W/mk 1.0 2.5
Applications
  • Telecommunications
  • Automotive electronics
  • Computer and peripherals
  • Power conversion
  • Between heat-generating semiconductors and a heat sink
  • Area where heat needs to be transferred to a frame, chassis, or other type of heat spreader

Thermally Conductive RTV Encapsulant

Product Properties
Properties Unit Value Remark
Base Material - Silicone
Appearance( 2-Parts ) A Part White Base
B Part Transparent Catalyst
Specific gravity - 1.40 ± 0.05 ASTM D792
Hardness Shore A 22 ± 5 -
Viscosity cP 9,000 ± 2,700 Part A (Base)
70 ± 20 Part B (Catalyst)
Dielectric strength kV/mm 26 ASTM D149
Volume resistance Ohm.cm 1 x 1015 ASTM D257
Tack free time min < 15 -
Snap time min 10~15 -
Curing Time at RT Hr 72 -
Thermal Conductivity W/mK 0.4 < ASTM D5470
Flame resistance - UL94-V0 Level ( Self Test )
Features
  • Flowable / Non-corrosive
  • Room temperature curing (Alkoxy Cure) / Good dielectric strength
  • Thermal stability (-55 ~ 200℃) / Excellent adhesion (Metals and Plastics)
  • Solvent free / Low shrinkage
How to use
Mixing

1) RTP-1422 is supplied in two parts, 6:1 mix ratio (Part A and Part B) by weight.
2) When fully blended, the Part A and Part B liquid mixture should have a uniform appearance.
3) The Presence of bright-colored stripes or marbling indicates that mixing is insufficient and curing will be incomplete.

Processing and Curing

1) A fully mixed RTP-1422 can be injected/dispensed directly into the junction box or module container.
2) Care must be taken to minimize air trapped.
3) Where possible, injection/dispensing should be carried out in a vacuum.

siliconevalley@siliconevalley.co.kr

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