Thermally conductive product for electronic assembly applications in the automotive segment

Produit thermoconducteur : DOWSIL™ TC-2035 CV

This new product, is a fast curing thermally conductive adhesive at 115°C (15 minutes at 115°C ). DOWSIL™ TC-2035 CV has a remarkable shelf life at room temperature.

It is intended for electronic assembly applications in the automotive segment

ADAS (Advanced Driver Assistance Systems),
ECU assembly,
Power electronics,
Inverter/converter,
OBC.

Enfin, Cette technologie permet de favoriser une mobilité à faible émission de carbone.

Key benefits :

High thermal conductivity 3.3 W/m.K
Low joint thickness
High elongation at break (~50%)
Easy distribution
Cures at 115°C/15 minutes
Primerless adhesion to selected substrates
Long shelf life of 12 months at 35°C or less
Low volatile content < 100 ppm

Comparison of the two versions DOWSIL™ TC-2035 CV & DOWSIL™ TC-2035

Property	DOWSIL™ TC-2035 CV Adhesive	DOWSIL™ TC-2035 Adhesive	Benefits
Color	Reddish brown	Reddish brown
Thermal conductivity (W/mK)	3.3	3.0	High thermal conductivity
Specific gravity – cured	3.00	03.07
Initial extrusion rate (g/min)	Part A: 33 Part B: 52	Part A: 43 Part B: 58	High dispense rate – higher throughput
Shelf life (months)	12	6	Lower scrap
Storage condition	≤ 35°C	≤ 25°C	Lower scrap and energy consumption
Pot life (hour)	3.5	5	Easier processing
Durometer (Shore D)	33	38
Tensile strength (MPa)	3.7	3.1	Higher reliability
Elongation (%)	50	55	Flexible joints, less material needed
Adhesion failure mode (%)	≥90% Cohesive *Al – A5052P, Anodized	≥90% Cohesive *Al – A1050P	Good primerless adhesion
Lap shear adhesion (MPa)	2.9; *Al – A5052P, Anodized	2.6; *Al – A1050P	Stronger adhesion
Cure condition	15 minutes at 115°C	30 minutes at 125°C	Faster processing, lower energy consumption

Processing

Minimum TLB ≤ 95 µm
Mixing ratio 1:1
Curing profile 15 minutes at 115°C
Pot life 3 to 4 hours at 25°C
Fast set-up
- Part A extrusion rate: 33 g/min
- Part B extrusion rate: 52 g/min

More info :

Need information on Dowsil™ TC-2035 CV or on the Dowsil™ brand ? Contact our tecnical service to +33 426 680 680 or fill our contact form.

Samaro also offers other thermal management solutions through its Thermal Management Selection Guide. In this guide you will find our compounds, thermal pads, dispensable pads, thermally conductive encapsulants (RTV & HTV) and thermally conductive adhesives.