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Dowsil 744 RTV Adhesive Sealant​ for Circuit Board Component Bonding
Dowsil 744 RTV Adhesive Sealant​ for Circuit Board Component Bonding
Dowsil 744 RTV Adhesive Sealant​ for Circuit Board Component Bonding
Dowsil 744 RTV Adhesive Sealant​ for Circuit Board Component Bonding
Dowsil 744 RTV Adhesive Sealant​ for Circuit Board Component Bonding
Dowsil 744 RTV Adhesive Sealant​ for Circuit Board Component Bonding
Dowsil 744 RTV Adhesive Sealant​ for Circuit Board Component Bonding
Dowsil 744 RTV Adhesive Sealant​ for Circuit Board Component Bonding
Dowsil 744 RTV Adhesive Sealant​ for Circuit Board Component Bonding
Dowsil 744 RTV Adhesive Sealant​ for Circuit Board Component Bonding
Specifications
Place of Origin :
USA
Brand Name :
dowsil
Model Number :
744
Price :
CN¥118.38
MOQ :
1
Packaging Details :
1 piece
CAS No. :
Dowsil 744
Type :
Sealant
Specifications :
310ML
Extrusion Rate :
184 g/min
Viscosity (Low Shear - 1/s) :
753 Pa-sec
Skin Over Time 25°C, 50%rh :
10 minutes
Specific Gravity (Cured) :
1.42
Tensile Strength :
395 psi
Delivery Time :
5-8days
Payment Terms :
T/T,L/C,D/A,D/P,Western Union,MoneyGram
Supply Ability :
1000Piece
Certification :
TDS,SDS,Rohs
Description

Dowsil 744 Circuit Board Component Bonding RTV Adhesive Sealant​

Basic Properties​


Dowsil™ 744 is a one-part, white, non-flowing RTV adhesive sealant designed for general-purpose bonding. With high elongation (590%) for stress relief, it cures at room temperature without mixing or ovens, and supports heat acceleration for faster production.


Product Description​


Curing via ambient moisture (30–80% RH), it achieves >90% physical properties in 24–72 hours. With a 10-minute skin-over time (25°C/50% RH) and workable time of 10–120 minutes, it cures inward at 0.25 inch/7 days. Silicone chemistry ensures stability across -45°C to 200°C with dielectric strength (15 kV/mm), ideal for electronics requiring long-term reliability.

Characteristics​

Beyond elongation, its tensile strength (2.7 MPa), tear resistance (20 N/cm), and low modulus (0.5 MPa) enable flexible bonding with minimal substrate stress. Shore A hardness 37 balances flexibility/support, while volume resistivity (5×10¹³ Ω·cm) ensures insulation. Adhesion to aluminum reaches 430 psi (substrate testing required), with 12-month shelf life (25°C).

Property Unit Result
​​Physical Properties​​
Extrusion Rate g/min 184
Viscosity (1/s) Pa·s 753
Viscosity (10/s) Pa·s 135
Slump cm 0.6
Tensile Strength MPa 2.7
Elongation % 590
Tensile Modulus MPa 0.5
Tear Strength (Die B) N/cm 20
​​Adhesion​​
Lap Shear to Aluminum MPa 3
​​Electrical​​
Dielectric Strength kV/mm 15
Volume Resistivity Ω·cm 5E+13
​​Curing​​
Skin-Over Time (25°C/50% RH) minutes 10
Tack-Free Time (25°C) minutes 55
​​Others​​
Specific Gravity (Cured) - 1.42
Shore A Hardness - 37
Shelf Life (25°C) months 12
UL Flammability - 94-HB

Scenario application


Designed for automated/manual dispensing, it bonds large components (e.g., batteries, capacitors) to PCBs. Industry cases include capacitor fixation in EV battery modules, heatsink bonding in industrial power supplies, and shock-resistant encapsulation of HV capacitors in telecom equipment.

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Dowsil 744 RTV Adhesive Sealant​ for Circuit Board Component Bonding

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Product Detail
Place of Origin :
USA
Brand Name :
dowsil
Model Number :
744
Price :
CN¥118.38
MOQ :
1
Packaging Details :
1 piece
Contact Supplier
Dowsil 744 RTV Adhesive Sealant​ for Circuit Board Component Bonding
Dowsil 744 RTV Adhesive Sealant​ for Circuit Board Component Bonding
Dowsil 744 RTV Adhesive Sealant​ for Circuit Board Component Bonding
Dowsil 744 RTV Adhesive Sealant​ for Circuit Board Component Bonding
Dowsil 744 RTV Adhesive Sealant​ for Circuit Board Component Bonding

Shenzhen Huazhisheng New Material Technology Co., Ltd.

Verified Supplier
1 Years
guangdong, dongguan
Since 2018
Business Type :
Manufacturer, Distributor/Wholesaler, Agent, Importer, Exporter, Trading Company, Seller, Other
Main Products :
Silicone Adhesive, Araldite Epoxy, Dowsil Adhesive
Total Annual :
5000000-8000000
Employee Number :
50~100
Certification Level :
Verified Supplier
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