Dow 1204 RTV Prime Coat

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Description for Dow 1204 RTV Prime Coat

Dilute solutions of saline coupling agents and other active ingredients.

Note: This material has been discontinued. Please view the Comparable Materials tab or call us at (262) 293-7970 for additional help.

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Application Type	Prime Coat, Primer
1 Part or 2 Part	1-Part
Material Form	Liquid
Substrate	Ceramics, Glass, Metals, Silicone
Manufacturer	Dow
Chemistry	Naphtha
Cure Method	Moisture, Solvent
Cure Temperature (°C)	20 to 25
Cure Time (min)	60 to 120
Color	Clear / Transparent

Best Practices for Dow 1204 RTV Prime Coat

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Technical Data for Dow 1204 RTV Prime Coat

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Overview

Application Type
- Coating - Prime Coat
- Primer
1 Part or 2 Part
- 1-Part
Material Form
- Liquid
Substrate
- Ceramic - Ceramics
- Glass
- Metal - Metals
- Plastic - Silicone
Chemistry
- Other - Naphtha
Application Method
- Brush - Wiping
- Spray
- Dip
Cure Method
- Moisture / Condensation Cure - Moisture
- Solvent
Color
- Clear / Transparent

Specifications

Cure Specs

Cure Temperature (°C)	20 to 25
Cure Time (min)	60 to 120

Other Properties

Flash Point (°F)	46.4	Test Method

Business Information

Shelf Life Details	Shelf life is indicated by the “Use Before” date found on the product label. For best results, Dow Corning primers, prime coats and adhesion promoters should be stored below 32°C (90°F). Special precautions must be taken to prevent moisture from contacting these materials before use. Containers should be kept tightly closed and head or air space minimized. Partially filled containers should be purged with dry air or other gases such as nitrogen to maximize shelf life. Small amounts for immediate use should be poured into clean, dry containers and discarded when finished. Material should not be used once it takes on a milky appearance or a large amount of white precipitate is observed, indicating moisture contamination. Repeated opening of the container can cause a small amount of white precipitate to form inside the container cap area, which does not affect the bulk material.
Shelf Life Type	from date of manufacture
Shelf Life (mon)	12

Best Practices for Dow 1204 RTV Prime Coat

*See Terms of Use Below
1. Surface Preparation
  
  The active ingredients must thoroughly wet-out and coat the bonding surfaces. Mild abrasion, solvent cleaning, plasma, corona discharge and other pre-treatments have been used to clean and enhance surface reactivity to bonding. In general, light surface abrasion is recommended whenever possible, because it promotes good cleaning and increases the surface area for bonding. Surfaces should be cleaned and/or degreased with Dow Corning ® brand OS Fluids, naphtha, mineral spirits, methyl ethyl ketone (MEK) or other suitable solvents that will remove oils and other contaminants that may be present. A final surface wipe with acetone or IPA may also be helpful. Different cleaning techniques may give better results than others. Users should determine the best technique for their applications.
2. Application
  
  These products should be applied in a very light, even coat by wiping, dipping or spraying. Excess material should be wiped off to avoid over-application, which generally appears as a white, chalky surface. When dip or spray coating, diluting by a factor of 2 to 4 with additional solvent may avoid excessive build-up.
3. Curing
  
  These products require moisture in the air to cure, and are generally cured at room temperature and in a range of 20 to 90 percent relative humidity for 1 to 2 hours. Low humidity and/or low temperature conditions require longer cure times. Mild heat acceleration of the cure rate may be possible but temperatures above 60°C (140°F) are not recommended. During application, the carrier solvent typically evaporates off quickly (except in the case of Dow Corning 1593 Cleaner/Primer, where the solvent does not evaporate at all), allowing the active ingredients to begin to react with atmospheric moisture and bonding surfaces. For optimal bonding, different cure times may be required for different temperature and humidity conditions. Users should determine the best cure schedule and conditions for their applications. The desired silicone elastomer should be applied after the primer, prime coat or adhesion promoter has fully cured.
Comparable Materials for Dow 1204 RTV Prime Coat

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Spec Engine^® Results
- Sylgard Prime Coat(Dow)
  Dilute solutions of saline coupling agents and other active ingredients.
- A-4040 Prime Coat(Dow)
  Dilute solutions of saline coupling agents and other active ingredients.
- SI2001 White(Resinlab)
  A one-part reflective room temperature moisture cure solvent borne silicone coating. It was designed as an optical coating that can be applied to various substrates to provide a highly reflective surface.
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