VFI®-3070 70 A Polyurethane Casting Rubber

3070 70 A is a fast-setting injectable or pourable urethane rubber ideal for making parts and castings. A 1:1 mix ratio gives added usability and a quick gel time to demold parts quickly. 3070 works well in urethane and metal molds and can produce parts of varying sizes. A high tensile strength and tear strength gives the impact resistance and durability to work for many different high use parts.

3070 70 A Urethane has been used in the following applications and may be used in many more applications. Contact Volatile Free, Inc. for more information on any specific applications.e

Related Industries:

Application Methods:

  • Brush
  • Inject
  • Pour

Available Packaging:

  • Tote
  • Drum
  • 5 Gallon
  • 1 Gallon

Product Details

  • Product Color: Standard color is black for additional information 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 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: For specific instructions and equipment requirements, contact Volatile Free, Inc.
  • Surface Preparation: All surfaces should be cleaned, prepped and free of any oils, dirt or debris. To demold, material must be non-porous or sealed with a chemical sealant. A release agent should be used on all products intended to be demolded. 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 and transferred to a new container to mix until uniform again before use. 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. Ensure surfaces in contact with the material are properly sealed and released before mixing to prevent any unwanted adhesion. Contact Volatile Free, Inc. for more information on recommended release agents or sealants.
  • Primers: Contact Volatile Free, Inc. on any primer questions.
  • 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®-3070 70 A Polyurethane Casting Rubber Physical Properties

  • Hardness Shore A (ASTM B-2240): 72
  • Tensile Strenth (ASTM D-412): 1350 psi
  • Elongation (ASTM D-412): 650%
  • Tear Strength (ASTM D-624): 165 pli
  • Solid Material Density : 66 PCF
  • Shrinkage: Minimal

VFI®-3070 70 A Polyurethane Casting Rubber Liquid Properties

  • Solids by Weight (ASTM D 1644): 100%
  • Solids by Volume (ASTM D2697): 100%
  • Liquid Density A Side (ASTM D 2939): 9.94 lb/gal
  • Liquid Density B Side (ASTM D 2939): 8.73 lb/gal
  • Mixed Liquid Density (ASTM D 2939): 9.34 lb/gal
  • Specific Gravity A side: 1.09 g/ml
  • Specific Gravity B side: 1.07 g/ml
  • Specific Gravity Mixed: 1.08 g/ml
  • Ratio by Volume (A:B): 1A:1B
  • Viscosity A side (ASTM D2196): 1100 cps
  • Viscosity B Side (ASTM D2196): 1400 cps
  • Pot Life: 90 seconds
  • Gel Time: 140 seconds
  • Tack Free: 5 minutes
  • De-mold Time: 10 minutes
  • VOC: 0