VFI®-3600F Fast Polyurethane Base Coat

VFI®-3600F fast two component urethane basecoat is used as a protective elastomer for impact and strength. A urethane basecoat provides strength and toughness underneath a UV stable topcoat to increase the properties as a system. Using a plural component sprayed system the VFI-3600F provides the ability to recoat same day for a faster more time efficient method. VFI-3600F two component urethane basecoat has zero VOC’s and can be used in areas with strong VOC regulations.

Waterproofing urethane basecoat that provides increased impact resistance with spray application or rolled application.

Features & Benefits

  • Two Component, Polyurethane Basecoat
  • Adds Strength and Toughness under Topcoats
  • Fast Recoat Window for Same Day Topcoat Application
  • Safer Handling with Zero VOC Content
  • Exceptional Durability from a Trusted Manufacturer
  • Formulated for Use Over: Metal, Mod/Bit, BUR, Single-Ply, Concrete, Spray Foam

Application Methods:

  • Spray

Available Packaging:

  • Tote
  • Drum

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: 3600 two component urethane basecoat is sprayed through a plural component high pressure spraying equipment with the capability of processing at mainting 2500 PSI. 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 spraying. 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 32 wet mils and may increase depending on final coverage rate 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 3600 two component 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®-3600F Fast Polyurethane Base Coat Physical Properties

  • Hardness Shore A (ASTM B-2240): 82
  • Hardness Shore D (ASTM B-2240): 32
  • Tensile Strenth (ASTM D-412): 1500 psi
  • Elongation (ASTM D-412): 300.00%
  • Tear Strength (ASTM D-624): 150 pli
  • Solid Material Density : 71.8 PCF
  • Dimensional Stability: 0.02%

VFI®-3600F Fast Polyurethane Base Coat Liquid Properties

  • Solids by Weight (ASTM D 1644): 100%
  • Solids by Volume (ASTM D2697): 100%
  • Liquid Density A Side (ASTM D 2939): 9.6 lbs/gal
  • Liquid Density B Side (ASTM D 2939): 9.5 lbs/gal
  • Mixed Liquid Density (ASTM D 2939): 9.50 lbs/gal
  • Specific Gravity A side: 1.15 g/mL
  • Specific Gravity B side: 1.14 g/mL
  • Specific Gravity Mixed: 1.14 g/mL
  • Ratio by Volume (A:B): 1A:1B
  • Ratio by Weight (A:B): 100A:98.8B
  • Viscosity A side (ASTM D2196): 5,250 cps
  • Viscosity B Side (ASTM D2196): 1,950 cps
  • Pot Life: 30 minutes
  • Gel Time: 35 minutes
  • Recoat Window: 4-48 hours
  • Full Cure: 4 days
  • VOC: 0

Systems Used In

Hybrid Polyurethane Foam Roof System

A hybrid silicone and polyurethane roofing system is a premiere strength and energy saving system for a roof. Using our 727 polyurethane 3 PCF roofing foam provides a smooth monolithic layer that is easy to topcoat and gives the building a higher energy efficiency. The foam is then coated with 3600 polyurethane, an extremely durable basecoat, to create a tough urethane layer over the foam to prevent hail damage and leaks. The 3600 can be spray applied or rolled, depending on the speed needed or available equipment. Sealguard® 990 high solids silicone is then applied as the topcoat to provide UV stability and protection against ponding water. Using these three products as a system provides the strengths of each product and removes the weaknesses of each product. This system is best used when a premium roof system is required to stand up to UV degradation and severe hail. These products when sprayed can all be applied same day making this a quick and efficient roofing process that will provide a lasting result.


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Product Data Sheets