Dow Sylgard HVIC+

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Description for Dow Sylgard HVIC+

Protective coating for high-voltage insulators.

Brand	Sylgard
Application Type	Pot, Encapsulate
1 Part or 2 Part	1 Part
Material Form	Liquid
Manufacturer	Dow
Chemistry	Silicone
Cure Method	Heat
Cure Time (min)	120 to 360
Viscosity (cPs)	Pourable
Arc Resistance (sec)	Dry Arc resistant

Best Practices for Dow Sylgard HVIC+

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Technical Data for Dow Sylgard HVIC+

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Overview

Application Type
- Pottant / Encapsulant - Pot, Encapsulate
1 Part or 2 Part
- 1 Part or 2 Part - 1 Part
Material Form
- Liquid
Chemistry
- Silicone
Application Method
- Brush
- Spray
- Dip
Cure Method
- Heat
Brand
- Sylgard

Specifications

Cure Specs

Cure Time (min)	120 to 360
Viscosity (cPs)	Pourable
Tack Free Time (min)	30	Test Method

Material Resistance

Arc Resistance (sec)	Dry Arc resistant

Conductivity

Dissipation Factor	0.02400	Test Method
Dielectric Strength (V/mil)	556	Test Method
Dielectric Constant	3.60	Test Method

Other Properties

Specific Gravity	1.219	Test Method
Flash Point (°F)	105.8
% Solids (%)	75

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 12 months from the date of production. When using SYLGARD HVIC+ from a previously opened container, any cured skin must be removed from the surface.
Shelf Life Type	from the date of production
Shelf Life (mon)	12

Best Practices for Dow Sylgard HVIC+

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1. Surface Preparation
  
  SYLGARD HVIC+ should be applied in several coats over a clean, dry surface. A surface previously coated with a silicone grease should be cleaned thoroughly before applying the coating.
2. Application
  
  Before use, SYLGARD HVIC+ should be thoroughly agitated on a paint shaker or can roller to ensure uniformity. SYLGARD HVIC+ should be applied in several coats over a clean, dry surface. Any surface previously coated with a silicone grease should be cleaned thoroughly before applying the coating. Surfaces other than glass or porcelain may require use of a primer to ensure adhesion. Consult Dow Corning Technical Service and Development for primer recommendations. SYLGARD HVIC+ can be reapplied to previously coated surfaces after pressure water washing. The product is normally spray applied, but can be applied by brushing or dipping. An average dry thickness of 20mils (0.020 inch) is recommended on insulators. Several sprayed coats are needed to attain this average. Depending on temperature and humidity, full cure takes 2 to 6 hours. Additional coats can be applied after 20 to 30 minutes. For dilution, a high flash point >38°C (>100°F) naphtha spirits solvent is recommended. Acceptable solvents include Kwik Dri Naphtha Spirits 66 from Ashland Chemical and Solvent recommendations can be obtained from Dow Corning.
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