• Description for 3M PR851-454

    Formulated for extended resistance to impact, vibration, stress, peel, and humidity applications. It is faster curing than the Rite-Lok™ Rubber Toughened Instant Adhesives.

    *See Terms of Use Below

    Chemical Resistance Most oils, Chemical Resistance: Excellent Solvent Resistance
    Application Type Bond, Adhesive: Instant Adhesives
    1 Part or 2 Part 1-Part
    Material Form Liquid
    Substrate Glass, paper, Low surface energy plastics, polypropylene, porous substrate surfaces, polyethylene, Low surface energy plastics, leather
    Manufacturer 3M
    Chemistry Cyanoacrylate, Ethyl Hybrid
    Cure Method Moisture
    Cure Time (min) Fast, 1,440
    Viscosity (cPs) Medium, 200 to 400
    Color Clear
    High Temperature Resistance (°C) 160
    Low Temperature Resistance (°C) -65
  • Technical Data for 3M PR851-454

    • Chemical Resistance
      • Chemical Resistance - Most oils
      • Chemical Resistance : Relative Solvent Resistance - Excellent Solvent Resistance
    • Application Type
    • 1 Part or 2 Part
      • 1-Part
    • Material Form
      • Liquid
    • Substrate
      • Porous Substrates - porous substrate surfaces
      • Low Surface Energy - Low surface energy plastics
      • Leather
      • Glass
      • Plastic - Low surface energy plastics
      • Polypropylene
      • Polyethylene (LDPE, HDPE) - polyethylene
      • Paper
      • Other - flexible substrates, acidic surfaces
    • Chemistry
    • Application Method
      • Other - Hand applied
    • Cure Method
      • Moisture / Condensation Cure - Moisture
    • Color
      • Clear / Transparent - Clear
    Cure Specs
    Cure Time (min) Fast, 1,440
    Viscosity (cPs) Medium, 200 to 400 Test Method
    Fixture or Handling Strength Time (min) 0.17 to 0.58
    Bond Strength
    Shear Strength (psi) 2,900 Test Method
    Impact Strength (psi) Impact strength
    Material Resistance
    High Temperature Resistance (°C) 160
    Impact Resistance Impact Resistance
    Low Temperature Resistance (°C) -65
    Vibration Resistance/Shock Resistance vibration resistance
    Flexibility Flexible
    Other Properties
    Specific Gravity 1.100
    Business Information
    Shelf Life Details Storage: For short term storage (<30 days), keep adhesive in a cool (60°F to 80°F [16°C to 27°C]), dry place out of direct sunlight. Keep containers tightly covered and free of moisture. Refrigeration (40°F [4°C]) gives optimum long term storage stability.;Rite-Lok™ Flexible Instant Adhesive can be expected to have a shelf life of one year from the date of shipment from 3M when stored under refrigerated conditions.;Rite-Lok™ Flexible Instant Adhesive can be expected to have a shelf life of one year from the date of shipment from 3M when stored under refrigerated conditions.
    Shelf Life Temperature (°F) 140 to 176, 39
    Shelf Life Type From the date of shipment
    Shelf Life (mon) 12
  • Best Practices for 3M PR851-454

    *See Terms of Use Below

    1. Surface Preparation

      For optimum strength structural bonds, paint, oxide films, oils, dust, mold release agents, and all other surface contaminants must be completely removed. However, the amount of surface preparation depends on the required bond strength and the environmental aging resistance desired by the user. Typical quick surface preparation would include wiping with a clean solvent (such as isopropyl alcohol), abrading the surface with a clean fine abrasive, and then wiping again with a clean solvent to remove loose particles. Note: When using solvents, extinguish all ignition sources, including pilot lights, and follow the manufacturer’s precautions and directions for use.

      Ensure that parts are clean, dry, and free from oil and grease.

    2. Application

      A Rite-Lok™ Instant Adhesive Activator may be required if there are bonding gaps or porous substrate surfaces, if substrates are low surface energy plastics (e.g., polyethylene, polypropylene) or if substrates have acidic surfaces (e.g., paper, leather).

      Bond speed is typically very fast so ensure that parts are properly aligned before dispensing

      Product is normally hand applied from the bottle. Apply sparingly to one surface and press parts firmly together until handling strength is achieved. As a general rule, as little cyanoacrylate as possible should be used. Over application will result in slower cure speed and lower bond strength

    3. Curing

      Full bond strength will typically be achieved within a 24 hour cure time.

      Low humidity or low temperature conditions will slow down the cure rate.

      Cyanoacrylate bond resistance to most oils and solvents is excellent. Long term humidity, moisture, or water immersion may affect the strength of a cured cyanoacrylate bond depending on the substrates and the bond gap. Testing is recommended to evaluate the effect.

  • Comparable Materials for 3M PR851-454

    *See Terms of Use Below

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Viscosity Test Methods
Viscosity Test Method
200 to 400 cPs Brookfield LVF Spindle #2 @ 30 rpm.
Shear Strength Test Methods
Shear Strength Type Test Method
2,900 psi Overlap shear strength ASTM D1002