Scotch-Weld™ Structural Adhesive Primer Kit, Liquid, Yellow, Solvent, 80 deg F, 1 gal

3M™ Scotch-Weld™ structural adhesive primer EC-1945-B/A is a two part kit (base and accelerator). Our chemical curing primer is also corrosion-resistant. Its formula helps improve adhesion of sealers, epoxies, and urethanes to most metals. It cures at room temperature (75 degrees F) and offers a long application time to enable a variety of application methods. EC-1945 B/A Structural Adhesive Primer requires no diluent, which helps eliminate guess work and the expense of additional chemicals. Our two part chemically curing, corrosion-resistant primer is designed for use with 3M™ Aerospace adhesives. EC-1945 B/A primer improves adhesion of epoxies and urethanes to most metals as well as offering increased corrosion protection. EC-1945 B/A primer can be applied by dipping, brushing or spraying. Our formula provides corrosion protection inside and outside the bondline. EC-1945-B/A can be used to apply anti-corrosion coating on components. The stable coating also protects etched and anodized substrates for long term storage.

Features
• Two part chemically curing, corrosion-resistant primer
• Cures at room temperature to eliminate need for added process steps
• Formula provides excellent adhesion to metals
• Can be applied by dip, brush or spray to cover large areas quickly and efficiently
• Long application time, up to 8 hours, to ensure quality and to accommodate comprehensive processes
• Provides adhesion to epoxies and urethanes

Specifications
• Series: EC-1945 B/A
• Container Size: 1 gal
• Base Type: Solvent
• Form: Liquid
• Color: Yellow
• Odor/Scent: Solvent
• Composition: Part B: Calcium Chromate, CI Pigment Yellow 53, Methyl Ethyl Ketone, N-Butyl Acetate, Talc, Titanium Dioxide, MIBK, Xylene, Butyl Alcohol, Ethylbenzene, Quartz Silica, Part A: Xylene Isomers, Isopropyl Alcohol, Methyl Ethyl Ketone, Ethylbenzene, Organosilane Ester, Aliphatic Amine, Toluene
• Flash Point: 60 deg F (Part B), 16 deg F (Part A)
• Boiling Point: >118 deg C (Part B), >80 deg C (Part A)
• Density: 1.31 g/mL (Part B), 0.84 g/mL (Part A)
• Specific Gravity: 0.84 (Part A), 1.31 (Part B)
• Viscosity: 100 to 1000 cPs (Part B), >21 cSt (Part A)
• VOC Content: 524 g/L (Part B), 798 g/L (Part A)
• Vapor Pressure: <16 mmHg (Part B), <91 mmHg (Part A)
• Shelf Life: 12 months
• Application Method: Dip, Brush or Spray
• Storage Temperature: 80 deg F
• Product Weight: 10.6 to 11.1 lb/gal (Part B), 7 to +/-0.2 lb/gal (Part A)
• Resists: Corrosion
• Vapor Density: >3.5 (Part B), >2.1 (Part A)
• Curing Time: 24 hr at 75 +/- 5 deg F (Part A), 1 hr at 75 +/-5 deg F Followed by 30 min at 180 deg F or 5 min at 250 deg F (Part B)
• Flammability Limit: 3

Applications
• Adhesion Promotion
• Corrosion Protection