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Description for Dow HV 1520/40
Injection moldable; high tear strength; high elongation; low volume resistivity; fast cure.Application Type Bond, Pot, Encapsulate 1 Part or 2 Part 1-Part, 2-Part Material Form Liquid Manufacturer Dow Chemistry Silicone rubber Cure Method Heat Cure Temperature (°C) Elevated temperature, 120, 200, 200 Cure Time (min) Fast, Rapidly, 10, 240, 0.13 to 0.23 Viscosity (cPs) 400 (Pa.s) Volume Resistivity (O) Low, 17 (ohms/cm) -
Technical Data for Dow HV 1520/40
Overview
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Application Type
- Adhesive - Bond
- Pottant / Encapsulant - Pot, Encapsulate
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1 Part or 2 Part
- 1-Part
- 2-Part
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Material Form
- Liquid
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Chemistry
- Silicone - Silicone rubber
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Cure Method
- Heat
Specifications
Cure Specs
Cure Temperature (°C) Elevated temperature, 120, 200, 200 Test Method Cure Time (min) Fast, Rapidly, 10, 240, 0.13 to 0.23 Test Method Viscosity (cPs) 400 (Pa.s) Test Method Work / Pot Time (min) 4,320 Test Method Mix Ratio 1:1 (by volume) Bond Strength
Tear Strength (piw) High, 30 (kN/m) Test Method Tensile Strength (psi) 6.0 (Mpa) Test Method Conductivity
Volume Resistivity (O) Low, 17 (ohms/cm) Test Method Hardness
Shore A Hardness 40 Test Method Elongation (%) High, 400 Test Method Other Properties
Specific Gravity 1.070 Test Method % Solids (%) 100 Business Information
Shelf Life Details When stored at or below 32°C (90°F) in the original unopened containers, this product has a usable life of 6 months from the date of production., The curing agent and base can be sensitive to moisture or contaminants, it is recommended that containers are sealed tightly after use. Shelf Life Type from the date of production Shelf Life (mon) 6 -
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Best Practices for Dow HV 1520/40
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Mixing
Mix parts A and B in a 1:1 ratio. Meter mix equipment which pumps, meters and mixes the two components without the incorporation of air is strongly recommended for production.
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Deairing/Degassing
If air bubbles are entrapped during mixing the mixture must be thoroughly de-gassed under vacuum.
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Curing
DOW CORNING HV 1520/40 cures rapidly at elevated temperatures. A 2mm cross-section requires 8-14 seconds at 200°C (392°F). The cure time depends on the thickness and the cure temperature used. Cure can be inhibited by contact with certain materials such as amines, sulphur and tin complexes.
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Clean-Up
The uncured silicone can readily be removed by most hydrocarbon solvents. Polar solvents, such as ketones and alcohols, are not suitable.
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Comparable Materials for Dow HV 1520/40
Spec Engine® Results
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Cure Temperature Test Methods
Cure Temperature | Cure Time Test Method |
---|---|
Elevated temperature | |
120°C | Press cured |
200°C | Post cured |
200°C |
Cure Time Test Methods
Cure Time | Test Method |
---|---|
Fast | |
Rapidly | |
10 min | Press cured |
240 min | Post cured |
0.13 to 0.23 min |
Viscosity Test Methods
Viscosity | Test Method |
---|---|
400 (Pa.s) | Y=10.0sª¹, Viscosity measured on the Carrimed CSL Viscometer. |
Work / Pot Time Test Methods
Work / Pot Time | Temperature |
---|---|
4,320 min | 25°C |
Tear Strength Test Methods
Tear Strength | Test Method |
---|---|
High | |
30 (kN/m) | ASTM D624B |
Tensile Strength Test Methods
Tensile Strength | Test Method |
---|---|
6.0 (Mpa) | ASTM D412 |
Volume Resistivity Test Methods
Volume Resistivity | Test Method |
---|---|
Low | Volume Resistivity Test Method |
17 (ohms/cm) | IEC 60093 |
Elongation Test Methods
Elongation | Test Method |
---|---|
High | Elongation Test Method |
400 % | ASTM D412 |
Shore A Hardness Test Methods
Shore A Hardness | Shore Hardness Test Method |
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40 | ASTM D2204 |
Specific Gravity Test Methods
Specific Gravity | Test Method |
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1.070 | ASTM D792 |