3M PR40 Rite-Lok Cyanoacrylate Datasheet 3M PR40 Rite-Lok Cyanoacrylate

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  • Description for 3M PR40 Rite-Lok Cyanoacrylate

    A low viscosity cyanoacrylate adhesive which bonds close-itting plastic or rubber parts quickly and with high strength.<br/>

    *See Terms of Use Below

    Chemical Resistance Excellent, Chemical Resistance: Excellent Solvent resistance, Most oils
    Application Type Bond, Adhesive: Instant Adhesives
    1 Part or 2 Part 1-Part
    Material Form Liquid
    Substrate Composite, Metal, Nylon, Paper, Difficult-to-bond plastic, Polypropylene, Heavily plasticized PVC, Rubber, Porous substrate surfaces, Polyethylene, EPDM, Low surface energy plastics, ABS, Low surface energy plastics
    Manufacturer 3M
    Chemistry Cyanoacrylate, Ethyl Hybrid
    Cure Method Moisture
    Gap Fill (in) 0.004(in)
    Cure Time (min) 1,440
    Viscosity (cPs) low, 34 to 44, 20 to 45
    Color Clear
    High Temperature Resistance (°C) 82
    Low Temperature Resistance (°C) -53

  • Technical Data for 3M PR40 Rite-Lok Cyanoacrylate

    *See Terms of Use Below

    Overview
    • Chemical Resistance
      • Chemical Resistance - Excellent, 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
      • Metal
      • Plastic - Low surface energy plastics, Difficult-to-bond plastic
      • Nylon
      • Polypropylene
      • Polyvinyl chloride (PVC) - Heavily plasticized PVC
      • Polyethylene (LDPE, HDPE) - Polyethylene
      • ABS
      • Rubber
      • EPM/EPDM - EPDM
      • Composites - Composite
      • Paper
      • Other - Like substrates, Santoprene, Viton, Acidic surfaces, Leather
    • Chemistry
    • Application Method
      • Other - Hand applied
    • Cure Method
      • Moisture / Condensation Cure - Moisture
    • Color
      • Clear / Transparent - Clear
    Specifications
    Cure Specs
    Gap Fill (in) 0.004(in)
    Cure Time (min) 1,440
    Viscosity (cPs) low, 34 to 44, 20 to 45 Test Method
    Fixture or Handling Strength Time (min) 0.05 to 0.33, <0.25 Test Method
    Bond Strength
    General Bond Strength (psi) High
    Shear Strength (psi) 2,000, 900, 660 Test Method
    Tensile Strength (psi) 2,900 Test Method
    Material Resistance
    High Temperature Resistance (°C) 82
    Low Temperature Resistance (°C) -53
    Other Properties
    Specific Gravity 1.06 (g/ml)
    Business Information
    Shelf Life Details 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.;3M™ Scotch-Weld™ Plastic and Rubber Instant Adhesives can be expected to have a shelf life of one year from the date of shipment from 3M when stored under refrigerated conditions., 3M™ Scotch-Weld™ Plastic and Rubber Instant Adhesives 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) 60 to 80, 40
    Shelf Life Type Shelf Life Type, From the date of shipment
    Shelf Life (mon) <1, 12

  • Best Practices for 3M PR40 Rite-Lok Cyanoacrylate

    *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 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

      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

      After curing, 3M™ Scotch-Weld™ Plastic and Rubber Instant Adhesive bonds are suitable for use up to about 180°F (82°C). At 180°F (82°C) the bonds will be approximately 70% of the strength at room temperature and at 212°F (100°C) about 50% of full strength.

      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 PR40 Rite-Lok Cyanoacrylate

    *See Terms of Use Below

    Spec Engine® Results

    • PermaBond
      799(PermaBond)

      • Single component • Ethyl cyanoacrylate • High viscosity • Fast cure •Surface insensitive • Extremely fast setting • Rapidly bond • No solvents • Colourless.

    • PermaBond
      268(PermaBond)

      Faster set times and improved gap-filling capability compared to conventional Cyanoacrylate.

    • Henkel
      Loctite 425(Henkel)

      Designed as a fast curing, low strength adhesive for locking metal and plastics fasteners. The product is designed for pre- or post-application.

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Fixture or Handling Strength Time Test Methods
Fixture or Handling Strength Time Fixture-Handling Strength Test Method
0.05 to 0.33 min
<0.25 min On EPDM. Time to handling is substrate dependent
Viscosity Test Methods
Viscosity Test Method
low
34 to 44 cPs ISO 3104/3105.
20 to 45 cPs Cone-Plate viscosity, CP75 at 3000/s shear rate
Tensile Strength Test Methods
Tensile Strength Test Method
2,900 psi ISO 6922 (grit-blasted steel).
Shear Strength Test Methods
Shear Strength Type Substrate Test Method
2,000 psi Overlap Shear Strength Steel ASTM D-1002; Grit blasted
900 psi Overlap Shear Strength ABS ASTM D-1002; Substrate failure
660 psi Overlap Shear Strength Polycarbonate ASTM D-1002; Substrate failure