Scotch-Weld™ 62391765013 Structural Adhesive Primer, 1 qt, Liquid, Green/Yellow, Ketones

3M™ Scotch-Weld™ structural adhesive primer EC-3917 help ensure complete wetting of the film adhesive system to bonding surfaces and improves durability of the bonded structure. It helps simplify production scheduling by protecting the cleaned surface until the bonding operations can be completed. With its sprayable consistency, EC-3917 is capable of high transfer efficiency for less overspray waste. When cured it promotes long-term durability for bonded joints. This aerospace primer can be co-cured with epoxy-based adhesive films at 250 deg F or 350 deg F to accommodate a variety of requirements and lessen the burden on inventory.

FEATURES
• Spray, brush or roller application meets a variety of process requirements
• Corrosion-inhibiting pigment provides protection inside the bondline
• Promotes long-term durability in bonded joints
• Stable coating protects etched and anodized substrates for long-term storage
• Can be co-cured with adhesives at 350 deg F to accommodate a variety of requirements
• Complete wetting of the adhesive to the adherends
• Improves durability of bonded joint
• Preserves surface preparation until ready-to-bond

SPECIFICATIONS
• Series: EC-3917
• Container Size: 1 qt
• Color: Green/Yellow
• Form: Liquid
• Composition: 60 to 90% Methyl Ethyl Ketone, 5 to 10% Phenolic Resin (Njtsrn# 254504001-5629), 1 to 5% Epoxy Resin, <=5% Ethyl Acetate, 1 to 5% Ethyl Alcohol, 1 to 5% Strontium Chromate (Vi), 1 to 5% Water, <1.5% Phenol-Formaldehyde Polymer, <1% Formaldehyde, <1% Phenol, <=0.99% Acetone, <=0.99% MIBK, <=0.99% Toluene, <0.2% Barium Chromate and <0.2 Methyl Alcohol
• Odor/Scent: Ketones
• Boiling point: >=77 deg C
• Flash Point: 16 deg F
• Evaporation Rate: 2.7
• Density: 0.86 g/mL
• Viscosity: 2 to 5 cPs
• Specific Gravity: 0.86
• VOC Content: <=770 g/L
• Shelf Life: 180 Days
• Flammable Limit: 1.8% Lower, 19% Upper
• Vapor pressure: 100 mmHg
• Vapor density: 2.5
• Domestic/Import: Domestic

APPLICATIONS
• Corrosion Protection
• Metal Bonding