Cortec EcoLine® 3690 Oil-Based Temporary Coating
Cortec EcoLine® 3690 Oil-Based Temporary Coating
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Introducing EcoLine® 3690, an innovative biobased oil-based temporary coating specially crafted to withstand the harshest marine and high humidity environments.
This cutting-edge product excels in severe conditions.
EcoLine® 3690 has eco-friendly composition, with a remarkable 72% USDA-certified biobased content. This composition is the perfect choice for environmentally conscious consumers. It proudly bears the USDA BioPreferred® Program label. This label is an esteemed recognition of its commitment to sustainability and environmental responsibility.
Moreover, as part of the USDA BioPreferred® Program's Mandatory Federal Purchasing Initiative, it is a preferred choice for government agencies and institutions seeking greener solutions.
EcoLine® 3690 boasts unparalleled multimetal corrosion protection. It can safeguard a wide range of metals from deterioration, even in the most challenging and corrosive marine environments. Its outstanding temperature stability up to 180 °F (82 °C) ensures reliable performance in varying temperature conditions.
A key advantage of EcoLine® 3690 lies in its unique formulation, which leaves behind a non-drying, oily protective film. This film acts as a robust barrier against the elements, offering extended protection to surfaces for prolonged periods.
Unlike conventional coatings, this feature ensures that the protective layer remains intact. Even after long exposure to challenging conditions, Ecoline 3690 provides peace of mind and reduces the need for frequent reapplications.
Packaging and Storage
The EcoLine® 3690 Oil-Based Temporary Coating is offered in various packaging options. These options are pails, liquid totes, bulk quantities and metal drums. Pails are available in 5 gallons while liquid totes, metal drums and bulk quantities come in 55 gallons or 208 litres. For optimal product performance, it is essential to store the coating in its original packaging indoors, away from direct sunlight, within a temperature range of 40-100°F (4-38°C).
Shelf life: 2 years
Preparation and Application - Preparing the Surface
Before applying EcoLine® 3690, ensure that the substrate or metal is entirely free any contaminants. These contaminants may be dirt, grease, drawing compounds, fingerprints, oil, dirt, and rust inhibitors, approved by Cortec®. They may hinder adhesion.
For painted surfaces, use the SSPC-SP1 preparation as the minimum requirement. In applying on exposed metals, Cortec® advises to sue the NACE #3 or SSPC-SP6 preparation. It is prudent to consult the technical service of Cortec and conduct a system adhesion test before proceeding with the full-scale application.
Application
To achieve a smooth viscosity, vigorously agitate EcoLine® 3690 with the use of a cylindrical mixer or may be hand-held drill mixer. If you have any other similar equipment or method, you can also use it. This step ensures proper blending of the product. EcoLine® 3690 offers versatility in application. You can use brushing, spraying, rolling, or dipping depending on the specific requirements of the project.
Setting Up Equipment - For Conventional or HVLP Spray:
- Nozzle Size: 0.02 up to 0.11" (0.5 up to 2.8 mm) *adjustable based on fluidity and pressures
- Air Pressure: between 45 and 55 psi
- Fluid Pressure: maximum of 10 psi
- Use a 0.95 cm or ⅜-inch I.D. fluid hose, up to a maximum 50 feet or 15.2 m in length. Alternatively, you can use a ¼ inch or 0.64 cm I.D. fluid hose but adjust pressure accordingly. The spray gun and pot should always have multiple regulations and remain at the same elevation.
For Air-Assisted Airless/Airless:
- Nozzle Size: 0.015 up to 0.035” (or between 0.38 and 0.89 mm) *adjustable based on viscosity and pressures
- Pressure: between 1800 and 2500 psi
- Ensure the hose is a minimum of ⅜” (0.95 cm) I.D., but you can use a whip end section with ¼ inches or 0.64 cm in thickness for easier application. We suggest a maximum 100 feet or 30.5 m in hose length.
Cleanup:
After use, clean tools and equipment immediately with n-butyl acetate while the coating is damp. For removing EcoLine® 3690 from a metal surface, employ a VpCI®-41x series alkaline cleaner degreaser. Always follow the manufacturer’s safety precautions and recommendations when working with any solvent.
Product Specifications (.PDF)
Frequently Asked Questions
• What exactly is Cortec EcoLine 3690 and what's its primary purpose?
Cortec EcoLine 3690 is a unique biobased, oil-based temporary coating designed to provide exceptional corrosion protection for various metal surfaces, particularly in challenging environments like severe marine and high humidity conditions. Its main goal is to prevent rust and degradation of metal components during storage, transit, or even during equipment lay-up.
• How does Cortec EcoLine 3690 actually protect metal from rust?
When applied, EcoLine 3690 forms a tenacious, oily film on the metal surface. This film acts as a formidable barrier, effectively displacing moisture and providing a self-healing layer that shields the metal from corrosive elements in the atmosphere, ensuring comprehensive protection.
• What makes Cortec EcoLine 3690 an "eco-friendly" option compared to other rust preventatives?
EcoLine 3690 is considered eco-friendly because it's largely biobased, derived from canola oil, and contains a significant percentage of USDA certified biobased content. This makes it a more sustainable alternative to many traditional petroleum-based rust preventatives, contributing to reduced environmental impact and worker exposure to harsh chemicals.
• Is this product suitable for use on a wide variety of metals, or is it limited to specific types?
Absolutely! Cortec EcoLine 3690 offers excellent multi-metal corrosion protection. It's effective on a broad range of metals, including silver, cast iron, stainless steel, copper, magnesium, aluminum, and carbon steel, making it incredibly versatile for various industrial applications.
• Does EcoLine 3690 dry to a hard film, or does it remain oily after application?
EcoLine 3690 is designed to leave behind an oily protective film that does not dry. This characteristic is part of its effectiveness, as the wet film provides continuous protection and also offers excellent lubricity for moving parts.
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• What preparation steps should I take before applying Cortec EcoLine 3690 to ensure optimal protection?
For the best results, the metal substrate should be thoroughly cleaned and free from any contaminants like grease, oil, dirt, fingerprints, drawing compounds, or rust inhibitors (unless they are Cortec-approved). For bare metal, a NACE #3/SSPC-SP6 surface preparation is recommended, and for painted surfaces, at least an SSPC-SP1 is advised.
• What are the different ways I can apply Cortec EcoLine 3690 to my metal components?
EcoLine 3690 is quite versatile in its application methods. You can easily apply it by spraying, rolling, brushing, or even dipping your parts into the solution, allowing for flexibility depending on the size and shape of the items.
• What's the recommended thickness for the EcoLine 3690 coating to achieve effective rust prevention?
The normal recommended dry film thickness (DFT) for EcoLine 3690 is 2 mils (50 microns). This thickness ensures robust and long-lasting protection against corrosion.
• Are there any specific environmental considerations I should be aware of when applying this coating, like ventilation?
Yes, it's always a good practice to apply EcoLine 3690 in a well-ventilated area. While it's considered non-hazardous and non-toxic with zero VOCs, good ventilation ensures a comfortable and safe working environment.
• Can I apply Cortec EcoLine 3690 over painted surfaces, or is it strictly for bare metal?
One of the convenient features of EcoLine 3690 is that it can indeed be applied over painted surfaces, offering an additional layer of protection without compromising the existing paintwork.
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• How long does it typically take for the EcoLine 3690 film to "dry to touch" or "dry to handle"?
Since EcoLine 3690 leaves an oily, non-drying film, it doesn't have a traditional "dry to touch" or "dry to handle" time like a paint. The protective film is effective immediately upon application.
• Is it necessary to mix or agitate the product before using it?
Yes, it's recommended to thoroughly mix or power agitate EcoLine 3690 to a uniform consistency before use. This ensures the product's components are evenly distributed for optimal performance.
• For how long can I expect Cortec EcoLine 3690 to protect my equipment during lay-up?
Cortec EcoLine 3690 is designed for long-term equipment lay-up, offering protection for periods of 5 years or even more, making it ideal for extended storage.
• What kinds of industrial parts are typically protected by EcoLine 3690 for long-term storage?
This coating is perfect for protecting a wide array of industrial parts during long-term storage, including pipes, couplings, pumps, cylinders, cables, and various working and moving parts.
• Can EcoLine 3690 be used for protecting metal components during overseas shipping, especially in humid or marine conditions?
Absolutely. EcoLine 3690 is specifically formulated for severe marine and high humidity conditions, making it an excellent choice for protecting metal components during international shipping, especially in challenging environments.
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• Is this coating suitable for use on heavy machinery parts that might be exposed to the elements in a sheltered outdoor environment?
Yes, EcoLine 3690 provides excellent sheltered outdoor protection on any metal surface, making it highly suitable for heavy machinery parts stored under a shed or carport.
• Beyond corrosion protection, does EcoLine 3690 offer any other benefits for working or moving parts?
Indeed, EcoLine 3690 also boasts excellent lubricity, meaning it can act as a dual lubricant and rust preventative for working and moving parts, which is a fantastic added benefit.
• Could this product be used on parts with tight tolerances, or would the oily film interfere?
While it leaves an oily film, EcoLine 3690 can be used for parts with tight tolerances, particularly where a lubricating rust preventative is beneficial. However, for applications requiring an invisible or completely dry film, other Cortec products might be considered.
• What are the temperature limitations for Cortec EcoLine 3690?
Cortec EcoLine 3690 is temperature stable up to 180°F (82°C), indicating its resilience in warmer operating or storage conditions. It also has a low freezing point of 0°F (-18°C).
• Does Cortec EcoLine 3690 meet any specific military or industry standards for corrosion protection?
Yes, EcoLine 3690 meets MIL-PRF-16173E (Grade 2,3) and also adheres to NACE TM0208-2008, showcasing its high performance and compliance with recognized industry benchmarks.
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• How does EcoLine 3690 perform in accelerated corrosion tests like salt spray (ASTM B-117) and humidity (ASTM D-1748)?
In ASTM B-117 salt spray tests, EcoLine 3690 at 1 mil (25 microns) offers 500+ hours of protection for carbon steel and 1000+ hours for aluminum. Under ASTM D-1748 humidity tests, it provides 2000+ hours for carbon steel and 3000+ hours for aluminum, demonstrating its superior protective capabilities.
• What's the typical appearance of the EcoLine 3690 liquid before application?
The product itself is typically an oily brown or tan viscous liquid.
• What is the flash point of Cortec EcoLine 3690, and why is this important?
EcoLine 3690 has a flash point of 482°F (250°C). This high flash point indicates its low flammability, which is important for safety during storage, handling, and application.
• How do I clean up my tools and equipment after applying Cortec EcoLine 3690?
For cleaning tools and overspray, it's best to use alkaline cleaners like Cortec VpCI-414 or mineral spirits, especially while the coating is still wet.
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• What's the recommended method for removing EcoLine 3690 from a metal surface once the protection period is over?
When it's time to remove the coating from a metal surface, an alkaline cleaner/degreaser from the Cortec VpCI-41x series is recommended for effective and easy cleanup.
• What are the ideal storage conditions for Cortec EcoLine 3690 to ensure its shelf life?
To maintain the best product performance and ensure its full shelf life, EcoLine 3690 should be stored indoors in its original packaging, away from direct sunlight, at temperatures between 40-100°F (4-38°C).
• What is the typical shelf life of Cortec EcoLine 3690 when stored correctly?
When stored properly under the recommended conditions, Cortec EcoLine 3690 has a shelf life of 2 years (24 months).
• In what container sizes is Cortec EcoLine 3690 generally available?
Cortec EcoLine 3690 is typically available in convenient 5-gallon (19 L) pails and larger 55-gallon (208 L) metal drums, as well as liquid totes and bulk options for various project scales.
• Does Cortec EcoLine 3690 have any VOCs (Volatile Organic Compounds)?
No, a significant environmental benefit of EcoLine 3690 is that it has zero VOCs, contributing to better air quality and a safer working environment.
• Is EcoLine 3690 considered non-hazardous and non-toxic?
Yes, EcoLine 3690 is formulated to be non-hazardous and non-toxic, which is a major advantage for worker safety and environmental responsibility.
• What kind of certifications does EcoLine 3690 hold related to its biobased content?
EcoLine 3690 is a USDA certified biobased product and is part of the USDA BioPreferred Program, which encourages the purchase of biobased products by federal agencies and contractors.
