Product Name
Devcon FL-20 Flexane Primer 4 oz Can 15985
Brief Description
Devcon FL-20 Flexane Primer is a one-part, orange-colored liquid adhesion promoter specifically formulated to maximize the bond of all Devcon Flexane urethane compounds to a variety of substrates. It is a moisture-cure primer designed for industrial applications, ensuring optimal adhesion on porous and non-porous surfaces.
Popular Applications & Uses
- Maximizing adhesion of Devcon Flexane urethanes to various substrates.- Priming concrete, rubber, wood, fiberglass, PVC, and cured epoxy surfaces before applying Flexane products.- Essential for repair and lining of process equipment where Flexane urethanes are used.- Used in industrial maintenance, repair, and overhaul (MRO) operations.- Can be used in a two-coat system with FL-10 Primer for metal substrates that will be immersed in aqueous solutions.
Industries that Commonly Use It
- General Manufacturing (for equipment repair and lining)- Construction/ Building Services (for concrete applications and repairs)- Marine (for fiberglass and other substrate repairs, especially in wet environments)- Automotive Service/Repair (for urethane-based repairs and coatings)- Metal Fabrication (for preparing metal surfaces for urethane coatings, often with FL-10)- Energy (for industrial equipment maintenance and lining)- Petroleum Industry, Products or Services (for equipment repair and protective coatings)- Government & Military (due to its military approval and NSN listing)- Distributers & Resellers (as a product sold through industrial supply channels)- Concrete (specifically for enhancing adhesion to concrete substrates)- Fabrication (for bonding to various materials like fiberglass and PVC)- Plastic Fabrication (for priming PVC and other plastics)
Special and Unique Features
- One-part adhesion promoter, simplifying application.- Specifically designed to maximize adhesion of all Devcon Flexane urethanes.- Military-approved, listed under NSN Stock #8010-01-343-4809, indicating high performance standards.- Moisture-cure formulation, allowing for efficient curing.- Fast drying time, typically 15-30 minutes before topcoating with Flexane.- Effective on porous substrates like concrete and softwoods, often requiring multiple coats for optimal results.
Key Properties
- Product Form: Liquid- Color: Orange- Chemical Base: Ethyl Acetate- Flammability: Flammable- Drying Time: Minimum 15-30 minutes before topcoating with Flexane- Cure Time: Approximately 5 hours (full cure, though dry to touch is faster)- One-part system- Coverage: Approximately 0.93 m² per 112gm (4 oz) can at 125µm thickness- % Solids by Volume: 3.7
Surface Compatibility
- Concrete- Rubber (including gum rubbers, neoprene, and cured urethanes)- Wood (hardwoods and softwoods)- Fiberglass- Previously applied Flexane surfaces- PVC- Cured Epoxy- Metal (when used in conjunction with FL-10 Primer for immersion applications, or as a general primer for metals in some contexts)
Known backups / known substitutes
- Devcon FL-10 Flexane Primer: Primarily for metal surfaces, especially for rust prevention and immersion applications (often used in conjunction with FL-20).- Devcon FL-30 Primer: Designed for rigid plastics.- Epoxy Primers: General alternatives for concrete floors, offering different properties regarding moisture tolerance and cure times.- Other urethane primers from various manufacturers, such as Matrix MP-2K Urethane Primer or Eastwood's 2K Urethane Primer-Surfacer.- Loctite PC 7383 (Polyurethane-based alternative).- Hardman Tuff Stuff Urethane A-85 (Polyurethane-based alternative).
Comparison Note
Devcon FL-20 Flexane Primer is a specialized, one-part, moisture-cure primer engineered to create a strong adhesive bond for Devcon Flexane urethanes across a broad spectrum of materials, including concrete, rubber, wood, and fiberglass. Its fast drying time and military approval highlight its efficiency and reliability in demanding industrial environments. While Devcon offers other primers like FL-10 for metals and FL-30 for rigid plastics, FL-20 is uniquely versatile for non-metallic and some specific metallic applications (e.g., immersion systems). Compared to general epoxy primers, urethane primers like FL-20 often provide faster cure times and can be more suitable for porous substrates, making it a critical component for successful Flexane applications.
