Dow HV 1860/120

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Description for Dow HV 1860/120

Suitable for bonding high temperature peroxide cured silicone rubbers; remains active over several hours after application; low toxicity formulation.

*See Terms of Use Below

Application Type	Primer for addition cured silicone rubbers
1 Part or 2 Part	1-Part
Material Form	Liquid
Substrate	Ceramic, Glass, Metals, Resin, Silicone Rubbers, Composites
Manufacturer	Dow
Chemistry	Volatile siloxanes
Cure Method	Air dry, Solvent
Viscosity (cPs)	1 (mPa.s)
Color	Red, Colorless
Can Be Used In Conjunction With These Materials	Addition cured silicone rubbers

Best Practices for Dow HV 1860/120

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Technical Data for Dow HV 1860/120

*See Terms of Use Below

Overview

Application Type
- Primer - Primer for addition cured silicone rubbers
1 Part or 2 Part
- 1-Part
Material Form
- Liquid
Substrate
- Ceramic
- Glass
- Metal - Metals
- Plastic - Resin
- Silicone Rubber - Silicone Rubbers
- Composites
Industry
- Other - High voltage arrestors
Chemistry
- Other - Volatile siloxanes
Application Method
- Brush
- Spray
- Dip
Cure Method
- Room Temperature / Air Dry - Air dry
- Solvent
Color
- Clear / Transparent - Colorless
- Red
Can Be Used In Conjunction With These Materials
- Silicones - Addition cured silicone rubbers

Specifications

Cure Specs

Viscosity (cPs)	1 (mPa.s)	Test Method
Dry Time (min)	15 to 90

Conductivity

Dielectric Strength (V/mil)	Insulator composites

Other Properties

Specific Gravity	0.820	Test Method
Flash Point (°F)	80.6	Test Method
% Solids (%)	5.0

Business Information

Shelf Life Details	When stored at or below 25°C (77°F) in the original unopened containers, this product has a usable life of 450 days from the date of production. This material should be stored in a warehouse suitable for flammable materials., Containers should be kept tightly sealed when not in use. The primer hydrolyzes upon contact with air moisture, and prolonged exposure will reduce or destroy its effectiveness., Once hydrolyzed, indicated by a milky appearance, the material cannot be reclaimed, and will contaminate any unreacted primer.
Shelf Life Type	from the date of production
Shelf Life (mon)	4

Best Practices for Dow HV 1860/120

*See Terms of Use Below
1. Surface Preparation
  
  Thoroughly clean and degrease the surface using a scouring pad, or a coarse lint-free cloth. Rinse all cleaning agents off the surface with acetone, MEK or isopropanol. Allow the surface to dry.
  
  Alternatively, aqueous degreasing with steam or hot water can be used to effectively prepare surfaces. Rinse with demineralised water and allow to dry thoroughly. Ensure no residues are left on the surface.
2. Application
  
  Apply a thin coating of DOW CORNING HV 1860/120 Primer by dipping, brushing or spraying. In most cases a thin primer film will give the best adhesion. Film thickness can be roughly estimated by appearance, the thicker the film the stronger the white tint. If cracks appear in the chalked film, the coating applied was too heavy. In this case cleaning of the prime coat is recommended, then a second coat applied.
3. Curing
  
  At normal temperature and humidity conditions (50% R.H. and room temperature) the primer should be allowed to air dry for 15 to 90 minutes. Low humidity will mean longer drying times. Primer which is allowed to overcure will result in poor adhesion, under normal conditions this should be no longer than 6 hours.
Comparable Materials for Dow HV 1860/120

*See Terms of Use Below

Spec Engine^® Results
- Cho-Shield 1091 Primer(Parker Chomerics)
  An air-drying liquid coating for enhancing the adhesion of Cho-Shield 2000 series electrically conductive coating and Cho-Bond 2165 to chemically treated aluminum, and most composite surfaces.
- Circalok 6756 Primer(Parker Lord)
  Designed for use in electronics applications to bond Room Temperature Vulcanized (RTV) silicone rubbers to most metals and glass.
- Single Step Primer(3M)
  It is a polyurethane based primer that promotes adhesion of the polyurethane adhesives to glass, primed pinchweld metal and PVC Encapsulated parts. It is also a black-out primer to block out the sun's ultraviolet rays.
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Closest Results from this Manufacturer
- HV 1860/023(Dow)
  Suitable for bonding high temperature peroxide cured silicone rubbers; remains active over several hours after application.
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