SILCOOL TIA251GF

Two-component soft liquid-dispensed gap filler, 5.1 W/mK, 220 Pa·s, TI 2.6, Shore E45, thermal resistance 30 mm²·K/W at 80 µm BLT, UL94 V-0 certified (File No. E56745), glass bead options for BLT control.

Product code:

TIA251G

Package size:

25kg pail A+B

Shelf Life:

Contact for more details

SILCOOL TIA251GF is a two-component soft liquid-dispensed silicone gap filler from Momentive delivering 5.1 W/mK and UL94 V-0 certification (File No. E56745). Excellent slump resistance and glass bead options (180 µm, 250 µm) for BLT control. Fast cure: 100°C × 15 min.

Features & Benefits

5.1 W/mK high thermal conductivity — high-performance liquid-dispensed gap filler
UL94 V-0 certified (File No. E56745) for reliable flame retardant performance
Excellent slump resistance (TI 2.6) — stays in place after dispensing
Glass bead options (180 µm, 250 µm) for precise BLT control upon request
Repairable — can be removed and re-applied for rework operations
Fast cure: 100°C × 15 min or 70°C × 30 min for high-throughput production

Typical Applications

High-conductivity thermal interface in automotive power electronics modules
Gap filling in telecommunications equipment requiring 5.1 W/mK performance
Thermal interface in consumer electronics power management ICs
Liquid-dispensed thermal pad replacement in lighting and industrial applications

Property	Value	Test Method / Condition
Appearance Part A/B	Blue / Pale Blue	Visual
Dispensability A/B	25 (A)/25 (B)	g/min
Mix Ratio	1 : 1	—
Viscosity (mixed)	220 Pa·s	—
Thixo Index	2.6	—
Work Life @ 23°C	1.5 hrs	—
Cure @ 100°C	15 min	—
Cure @ 70°C	30 min	—
Cure @ 23°C	24 hrs	—
Density	3.2 g/cm³	23°C
Thermal Conductivity	5.1 W/mK	Hot wire
Thermal Resistance @ 80 µm BLT	30 mm²·K/W	In-house
Hardness Type E	50	—
Tensile Strength	0.2 MPa	—
Elongation	40%	—
Volume Resistivity	4.5×10^14 MΩ·m	—
Dielectric Strength	14 kV/mm	—
CTE	110 ppm/°C	—
Low Volatile D4-D10	150 ppm	—
Flame Retardancy	UL94 V-0 (equivalent)	—

Property

Value

Test Method / Condition

Appearance Part A/B

Blue / Pale Blue

Visual

Dispensability A/B

25 (A)/25 (B)

g/min

Mix Ratio

1 : 1

—

Viscosity (mixed)

220 Pa·s

—

Thixo Index

2.6

—

Work Life @ 23°C

1.5 hrs

—

Cure @ 100°C

15 min

—

Cure @ 70°C

30 min

—

Cure @ 23°C

24 hrs

—

Density

3.2 g/cm³

23°C

Thermal Conductivity

5.1 W/mK

Hot wire

Thermal Resistance @ 80 µm BLT

30 mm²·K/W

In-house

Hardness Type E

—

Tensile Strength

0.2 MPa

—

Elongation

40%

—

Volume Resistivity

4.5×10^14 MΩ·m

—

Dielectric Strength

14 kV/mm

—

CTE

110 ppm/°C

—

Low Volatile D4-D10

150 ppm

—

Flame Retardancy

UL94 V-0 (equivalent)

—

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