Dow 3-1598 HP

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Description for Dow 3-1598 HP

Noncorrosive; self-priming; rapid heat cure; high strength; flowable; low void; contains UV indicator for automated inspection.

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Application Type	Bond, Seal, Gasket
1 Part or 2 Part	1 Part
Material Form	Liquid, Silicone elastomer
Substrate	ABS
Industry	Connector, Lighting, Engine control, E-Mobility Solutions, Smart Meters, Smart Home Devices
Manufacturer	Dow
Chemistry	Silicone elastomer
Cure Method	Heat
Cure Temperature (°C)	>100, 20 to 25, 100, 125, 150
Cure Time (min)	180, 30, 15
Viscosity (cPs)	86,000, Flowable
Color	Black
High Temperature Resistance (°C)	200
Low Temperature Resistance (°C)	-45, -55

Best Practices for Dow 3-1598 HP

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Technical Data for Dow 3-1598 HP

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Overview

Application Type
- Gasketing - Gasket
- Adhesive - Bond
- Sealant - Seal
1 Part or 2 Part
- 1 Part or 2 Part - 1 Part
Material Form
- Elastomer - Silicone elastomer
- Liquid
Substrate
- Plastic - ABS
Industry
- Lighting
- Other Transportation - Transmission
- E-Mobility Solutions
- Connectors - Connector
- Smart Meters
- Smart Home Devices
- Industrial - Housings, Lids
- Engine - Engine control
- Construction - Baseplates
Chemistry
- Silicone - Silicone elastomer
Cure Method
- Heat
Color
- Black

Specifications

Cure Specs

Cure Temperature (°C)	>100, 20 to 25, 100, 125, 150
Cure Time (min)	180, 30, 15
Viscosity (cPs)	86,000, Flowable
Work / Pot Time (min)	Long	Test Method

Bond Strength

General Bond Strength (psi)	High
Shear Strength (psi)	820	Test Method
Tensile Strength (psi)	780

Material Resistance

Environmental Resistance	Environmental resistance
High Temperature Resistance (°C)	200
Low Temperature Resistance (°C)	-45, -55
Moisture/Humidity Resistance	Moisture/humidity resistance

Conductivity

Dissipation Factor	0.00600, 0.00030	Test Method
Dielectric Strength (V/mil)	Good, Durable, 500
Dielectric Constant	3.09, 3.03	Test Method
Volume Resistivity (O)	4.5E+14 (ohms/cm)

Hardness

Shore A Hardness	57
Elongation (%)	3
Flexibility	Flexible

Other Properties

Specific Gravity	1.310
Coefficient of Thermal Expansion (CTE)	275 (Linear (micron/m °C or ppm ))

Business Information

Shelf Life Details	Shelf life is indicated by the “Use Before” date found on the product label. For best results, Dow Corning RTV adhesives should be stored at or below 25°C (77°F). Special precautions must be taken to prevent moisture from contacting these materials. Containers should be kept tightly closed with head or air space minimized. Partially filled containers should be purged with dry air or other gases, such as nitrogen.
Shelf Life Type	from date of manufacture
Shelf Life (mon)	6

Not Good For

Don't Use With	Plastic, rubber

Best Practices for Dow 3-1598 HP

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1. Surface Preparation
  
  All surfaces should be thoroughly cleaned and/or degreased with Dow Corning® brand OS Fluids, naphtha, mineral spirits, methyl ethyl ketone (MEK) or other suitable solvent. Solvents such as acetone or isopropyl alcohol (IPA) do not tend to remove oils well, and any oils remaining on the surface may interfere with adhesion. Light surface abrasion is recommended whenever possible, because it promotes good cleaning and increases the surface area for bonding. A final surface wipe with acetone or IPA is also useful. Some cleaning techniques may provide better results than others
  
  users should determine the best techniques for their particular applications.
2. Mixing
  
  Upon standing, some filler may settle to the bottom of the liquid containers after several weeks. To ensure a uniform product mix, the material in each container should be thoroughly mixed prior to use. Two-part materials should be mixed in the proper ratio (1:1 or 10:1) either by weight or volume. The presence of light colored streaks or marbling indicates inadequate mixing.
3. Deairing/Degassing
  
  Automated airless dispense equipment can be used to reduce or avoid the need to de-air. If de-airing is required to reduce voids in the cured elastomer, consider a vacuum de-air schedule of >28 inches Hg for 10 minutes or until bubbling subsides.
Comparable Materials for Dow 3-1598 HP

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Spec Engine^® Results
- Q3-6611 Adhesive Black(Dow)
  Noncorrosive; self-priming; rapid heat cure; high strength; moderate flow.
- Dowsil Q3-6611 Adhesive(Dow)
  Noncorrosive; self-priming; rapid heat cure; high strength; moderate flow.
- Dowsil X3-1598 Adhesive(Dow)
  Noncorrosive; self-priming; rapid heat cure; high strength; flowable; contains UV indicator for automated inspection.
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