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THERMALFORTIS® Series: High-Performance Modified Polydimethylsiloxane Thermal Interface Media

The THERMALFORTIS® series features high-performance modified polydimethylsiloxane thermal interface materials designed for industrial precision temperature control applications operating between -60°C and 460°C. Engineered with superior thermal conductivity, an ultra-wide operating temperature range, and long-term stability, these colorless, odorless compounds offer low corrosion, minimal volatility, and provide reliable solutions for new energy, chemical processing, electronics, pharmaceuticals, and solar thermal industries.

THERMALFORTIS® 60A vs. 100A: Product Selection Comparison

Custom product models available to meet specific operating conditions.

ParameterTHERMALFORTIS® 60ATHERMALFORTIS® 100A
Key IngredientsModified polydimethylsiloxaneModified polydimethylsiloxane
AppearanceColorless and transparentColorless and transparent
Pour Point< -50°C< -60°C
Boiling Range> 356°C> 380°C
Closed-cup flash point178°C161°C
Moisture Content< 18 ppm< 10 ppm
Chlorine content< 3 ppm< 1 ppm
Acid Value< 0.005mgKOH/g< 0.005mgKOH/g
Maximum Operating Temperature360°C430°C
Auto-ignition temperature389°C401°C
Recommended ScenariosGeneral Industrial Heating / Temperature Control SystemsExtreme Low/High Temperature Conditions

THERMALFORTIS® 60A General-Purpose High-Performance Thermal Oil

Product Positioning

Designed for standard industrial temperature control applications, balancing performance and usability with a higher flash point for safer operation. Suitable for most conventional industrial heating and cooling circulation systems.

THERMALFORTIS® 60A Typical General Characteristics

Test ItemsTest Method / StandardUnused Status
IngredientsModified Polydimethylsiloxane
Appearance & ColorColorless, Clear
OdorOdorless
Pour PointDIN ISO 3016< -50°C
Boiling RangeDIN 51006> 356°C
Water SolubilityVirtually Insoluble
Maximum Water ContentDIN 51777-1< 180 ppm
Acid Value (Acid number)DIN 51558< 0.005 mgKOH/g
Chlorine Contentin accordance with DIN51522< 30 ppm
Closed Cup Flash PointISO 2719178°C
Auto-ignition Temperature (Liquids)EN 14522389°C
Heat of CombustionDIN 5190025.0 MJ/kg

* Data based on lab-tested samples; not guaranteed for all units. Not a specification.

THERMALFORTIS® 60A Liquid Physical Property Data

Temperature °CDensity kg/m³Equilibrium vapor pressure kPaViscosity mPa·sThermal Conductivity W/(m·K)
-40997.2047.050.1478
-30983.6037.080.1468
-20973.1032.350.1423
-10959.9028.090.139
0951.9021.770.1352
10940.5015.240.1314
20931.5011.870.1283
30922011.090.1274
40911.909.280.1232
50903.10.18.260.1189
608950.17.040.1177
70883.90.16.950.1163
80872.40.26.430.114
90865.40.35.980.1117
100855.70.54.320.1096
110845.80.73.870.1074
1208360.93.550.105
130827.41.22.870.1027
140819.52.82.280.0996
150807.63.32.080.0979
160805.44.61.950.0962
170795.381.810.0942
1807859.11.780.093
190775.415.31.730.092
200763.820.31.620.0906
210755.531.61.570.0894
220747.343.31.530.0883
230735.658.91.430.0872
240724.766.51.310.085
250713.895.41.150.0818
260670.5170.60.810.0808
270656201.80.760.0801
280640.4247.80.660.0777
290624259.60.590.077
300607278.50.560.0754
310588.3293.50.530.075
320568.5315.40.50.0731
330546.6349.40.480.0703
340522.6403.50.470.0683
350500.2431.30.440.0678
360486.5458.80.430.066

* The above data is based on laboratory test samples and may not apply to all samples. It is not a specification guarantee. * This table provides density data only at 10 bar pressure.

THERMALFORTIS® 100A High-Temperature Silicone-Based Thermal Oil

Product Positioning

Premium modified silicone-based thermal oil. Engineered for extreme conditions across an ultra-wide temperature range with higher purity, low volatility, and low corrosion. Meets stringent requirements for high cleanliness and precise temperature control over broad temperature spans.

THERMALFORTIS® 100A Typical General Characteristics

Test ItemsTest Method / StandardUnused Status
Appearance & ColorColorless, Clear
OdorOdorless
Pour PointDIN ISO 3016< -60°C
Boiling RangeDIN 51006> 380°C
Water SolubilityVirtually insoluble
Maximum Water ContentDIN 51777-1< 100 ppm
Acid Value (Acid number)DIN 51558< 0.005 mgKOH/g
Chlorine Contentin accordance with DIN51522< 10 ppm
Closed Cup Flash PointISO 2719161°C
Auto-ignition Temperature (Liquids)EN 14522401°C
Heat of CombustionDIN 5190025.5 MJ/kg

* Data based on lab-tested samples; not guaranteed for all units. Not a specification.

THERMALFORTIS® 100A Liquid Physical Property Data

Temperature °CDensity (1bar) kg/m³Density (10 bar) kg/m³Density (20 bar) kg/m³Equilibrium vapor pressure kPaViscosity mPa·sThermal Conductivity W/(m·K)
-401003.11004.71007040.050.1563
-30992.4994.1996.3030.410.1525
-20982983.6985.8023.430.149
-10971.7973.6976.1018.480.1456
0961.7964.1966.3014.760.1427
10952.4954.4957011.970.1399
20942.7945.2947.509.910.1372
30933.5935.8938.608.230.1346
40924.5926.7929.406.960.1319
50915.9917.7920.405.910.1291
60906.4908.8911.705.060.1265
70897.3900.1903.204.40.1241
80888.2891.3894.103.810.1216
90879.4882.4885.80.13.340.1193
100870.2873.48770.12.950.1169
110861.5864.5868.10.22.620.1148
120852.2855.6859.40.42.340.1125
130843846.7850.60.72.130.1102
140834.1837.6842.11.11.920.1081
150824.7828.58331.81.740.1061
160815.5819.4823.92.91.580.1041
170806.2810.3815.14.41.430.1023
180795.6800.7805.96.71.330.1004
190786.3791.3796.4101.210.0986
200776.4781.5787.314.61.130.0969
210765.9771.6777.7211.050.0952
220755.7761.7768.229.50.970.0936
230745.2751.5758.340.80.910.092
240734.3741.3748.655.30.850.0905
250723.2730.6738.373.60.80.0891
260673.5684.7684.7158.80.770.0882
270659671671186.50.720.0868
280643.5657.2657.2206.80.630.0849
290627.2642.6642.6229.50.560.0825
300610.2627.2627.2244.20.530.0818
310591.6611.2611.2268.10.50.0802
320571.9594.9594.9296.50.470.0795
330550.1577.4577.4325.50.450.0768
340526.2558.6558.6352.60.440.075
350539539539398.80.420.0722
360419.2419.2419.2431.50.360.0682
370476.60.390.0682
380525.80.360.066
390580.80.380.0642
400640.50.360.0624
410713.60.370.0601
420793.20.360.0588
430909.60.360.0566
4500.360.0566

* Data based on laboratory test samples; actual results may vary. Not a specification guarantee. * High-temperature low-pressure column density data is missing, indicating the temperature exceeds the boiling point at that pressure and the substance is in gaseous state.

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