VFI®-3401 Vertical Polyurethane Base Coat

VFI®-3401 Vertical Polyurethane Base Coat is used as a protective elastomer for strength and waterproofing on vertical applications. Vertical urethane base coat provides strength, toughness, and vertical hang to build thickness quickly without the need of multiple coats. VFI-3401 works best with a silicone or acrylic topcoat in order to provide waterproofing and UV stability. VFI-3401 Vertical Polyurethane Base Coat has no VOC’s and can be used in areas with strong VOC regulations.

Vertically applied, two-part urethane, with a long pot life to brush onto many different verticals.

Application Methods:

  • Brush
  • Roll

Available Packaging:

  • 5 Gallon
  • 1 Gallon

Product Details

  • Product Color: Standard color available is gray. For additional premium colors or color matching services contact Volatile Free, Inc.
  • UV Stability: This product is NOT UV color stable and has no long-term UV testing. For additional information contact Volatile Free, Inc.
  • Coverage/Thickness Requirement: Contact Volatile Free, Inc. for more thickness requirements and specifications.
  • Storage Stability/Shelf Life: 12-month shelf life from date of manufacture when stored and sealed in unopened containers between 40°F - 75°F. Opened containers may be resealed with a nitrogen purge, but shelf life will be significantly shortened. Material should be brought to a minimum temperature of 65°F before use.
  • Equipment: 3401-vertical urethane basecoat may be rolled or brushed. For specific instructions and equipment requirements, contact Volatile Free, Inc.
  • Surface Preparation: Surface preparation depends on application and substrate being coated. All surfaces should be cleaned, prepped and free of any oils, dirt or films that could affect the product adhesion. Contact Volatile Free Inc. with any additional questions.
  • Mixing: Pre-mixing Poly (B) components until uniform is required before combining Poly (B) and Iso (A). If pouring material by hand pre-weighed poly (B) must be poured into pre-weighed Iso (A) and then mixed until uniform. Product must be fully mixed and used before the duration of the pot life. Mix times may vary depending on volume and mixing method, please contact Volatile Free, Inc. for more information on any specific mixing questions and requirements.
  • Material Application: Temperature should be between 50°F and 100°F when the product is being used. The pot life will shorten with any increases in temperature beyond 72°F. Standard application is a coat thickness of 125 wet mils after 2 minutes of thickening in container. Fabric may be embedded for patch repair or additional strength. Contact Volatile Free, Inc. for more information on recommended application methods.
  • Primers: Volatile Free, Inc. recommends adhesion patch testing before use and additional adhesion patch testing with the chosen primer. The following are approved primers for use with 3401-vertical urethane basecoat. Contact Volatile Free, Inc. with any primer questions. • VFI-#11 • VFI-1007 • VFI-3218
  • Cleanup: Preferred clean-up solvent is xylene or MEK. Please contact Volatile Free, Inc. for more information on clean-up of equipment and tools.
  • Thinning: Do not thin prior to application.
  • Precautions: Contains isocyanate that may be irritating to the skin and is toxic if inhaled as particulate matter. See Safety Data Sheet for complete safety data. Do not add any foreign material to this product. Avoid prolonged breathing of vapors and prolonged or repeated skin contact. Use only with adequate ventilation.

VFI®-3401 Vertical Polyurethane Base Coat Physical Properties

  • Hardness Shore A (ASTM B-2240): 77
  • Hardness Shore D (ASTM B-2240): 27
  • Tensile Strenth (ASTM D-412): 1150 psi
  • Elongation (ASTM D-412): 300.00%
  • Tear Strength (ASTM D-624): 130 pli
  • Elastic Modulus: 800 psi
  • Solid Material Density : 67.3 PCF
  • Dimensional Stability: 0.0002

VFI®-3401 Vertical Polyurethane Base Coat Liquid Properties

  • Solids by Weight (ASTM D 1644): 100.00%
  • Solids by Volume (ASTM D2697): 100.00%
  • Liquid Density A Side (ASTM D 2939): 9.3 lbs/gal
  • Liquid Density B Side (ASTM D 2939): 8.7 lbs/gal
  • Mixed Liquid Density (ASTM D 2939): 9.00 lbs/gal
  • Specific Gravity A side: 1.12 g/ml
  • Specific Gravity B side: 1.04 g/ml
  • Specific Gravity Mixed: 1.08 g/ml
  • Ratio by Volume (A:B): 1A:1B
  • Ratio by Weight (A:B): 100A:93.02B
  • Viscosity A side (ASTM D2196): 5000 cps
  • Viscosity B Side (ASTM D2196): 12500 cps
  • Pot Life: 22 minutes
  • Gel Time: 27 minutes
  • Recoat Window: 4-48 hours
  • Full Cure: 4 days
  • VOC: 0


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Product Data Sheets