739 Plastic Adhesive Sealant, Moisture-Proof and Weather-Resistant

Dow Corning 739 Plastic Sealant is non-corrosive and suitable for ABS, PET, PP, as well as OEM and assembly operations. It can bond the baseplate and housing of industrial steam cleaning machines, seal pipeline substrates, and provide waterproof sealing for refrigerated trucks. Dowsil 739 is a one-component silicone adhesive that requires no primer, adheres to plastics, has no acidic acetic odor, is non-corrosive, does not react with metals, and offers excellent weather resistance.

Dow Corning 739 Flowable Sealant is a free-flowing, self-leveling, one-component sealing material.

Dowsil 739, with its low viscosity, allows for injection into fine cracks and gaps in encapsulation and sealing applications.

Dow Corning 739 adhesive offers the advantage of ready-to-use convenience. It cures at room temperature into a tough rubber-like solid. It adheres to many common substrates, including various metals, glass, numerous woods, ceramics, and a range of plastics. Dow Corning 739 exhibits strong resistance to climate, moisture, vibration, ozone, and extreme temperatures. It remains elastic within a range of -65°C to 232°C.

Characteristics are as follows:

Product Usage Characteristics -> Replacement Parts -> One-Component

Curing Characteristics -> Methoxy Curing, De-alcoholization Curing

Thermal Properties -> Low-Temperature Stability, High-Temperature Stability

Compatibility -> Plastics, Polyester, Ceramics

Stability -> Oxidation Resistance, Water Resistance, Heat Resistance, Ozone Resistance, UV Radiation ResistanceViscosity/ Degree-Related Characteristics -> Non-Degrading

Adhesion -> Adhesion to FR4, Adhesion to Plastics, Adhesion to Metals, Adhesion to Aluminum, Adhesion to Ceramics,

Key Features: UL QMFZ2 94HB

Full Cure Time: 1-24 hours / 1-60 minutes

Hardness: <70 D

Single/Dual Component: One-Component

Chemical Composition: Silicone

Cure Time: 24 hours / 7 days

Hardness: 37 A

Elongation: 640%

Peel Strength: 20

Room Temperature Tack-Free Time: 45 minutes

Shear Strength: 200 psi

Tensile Strength: 1020 psi

Volume Resistivity: 6.1 x 10^14 ohm-cm

Curing System: RTV