• Description for 3M PR03

    A medium-high viscosity low odor cyanoacrylate that has good gap-filling capability.

    *See Terms of Use Below

    Application Type Bond, Adhesive: Instant Adhesives
    1 Part or 2 Part 1 Part
    Material Form Liquid
    Substrate porous substrate surfaces, polyethylene, paper, Low surface energy plastics, polypropylene, Low surface energy plastics
    Manufacturer 3M
    Chemistry Cyanoacrylate, Methoxyethyl
    Cure Method Moisture
    Viscosity (cPs) medium to high, 900 to 1,200
    Color Clear
    Chemical Resistance Most oils
    Relative Solvent Resistance Chemical Resistance: Solvent resistance
    High Temperature Resistance (°C) 71
    Low Temperature Resistance (°C) -54
  • Technical Data for 3M PR03

    Overview
    • Application Type
    • 1 Part or 2 Part
      • 1 Part or 2 Part - 1 Part
    • Material Form
      • Liquid
    • Substrate
      • Porous Substrates - porous substrate surfaces
      • Low Surface Energy - Low surface energy plastics
      • Plastic - Low surface energy plastics
      • Polyethylene (LDPE, HDPE) - polyethylene
      • Polypropylene
      • Paper
      • Other - leather, acidic surfaces
    • Chemistry
    • Application Method
      • Other - Hand applied
    • Cure Method
      • Moisture / Condensation Cure - Moisture
    • Color
      • Clear / Transparent - Clear
    Specifications
    Cure Specs
    Viscosity (cPs) medium to high, 900 to 1,200 Test Method
    Fixture or Handling Strength Time (min) 0.33 to 1.17
    Set Time (min) very fast
    Bond Strength
    Tensile Strength (psi) 2,000 Test Method
    Material Resistance
    Chemical Resistance Most oils
    Relative Solvent Resistance Chemical Resistance: Solvent resistance
    High Temperature Resistance (°C) 71
    Low Temperature Resistance (°C) -54
    Other Properties
    Specific Gravity 1.080
    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™ Low Odor Instant Adhesives can be expected to have a shelf life of 6 months 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) 6
  • Best Practices for 3M PR03

    *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.

      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).

    2. Application

      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

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

  • Comparable Materials for 3M PR03

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Viscosity Test Methods
Viscosity Test Method
medium to high
900 to 1,200 cPs Brookfield LVF Spindle #2 @ 30 rpm.
Tensile Strength Test Methods
Tensile Strength Test Method
2,000 psi ISO 6922.