Application Type Bond, Adhesive: Instant Adhesives 1 Part or 2 Part 1 Part Material Form Liquid Substrate composite, EPDM, porous substrate surfaces, polyethylene, in combination with metal, Nylon, Paper, difficult-to-bond plastic, polypropylene, heavily plasticized PVC, rubber, Low surface energy plastics, ABS, Low surface energy plastics Manufacturer 3M Chemistry Cyanoacrylate, Ethyl Cure Method Moisture Cure Time (min) 1,440 Viscosity (cPs) very low, 2 to 6 Color Clear Chemical Resistance Excellent, Most oils Relative Solvent Resistance Chemical Resistance: Excelent Solvent resistance High Temperature Resistance (°C) 82 Low Temperature Resistance (°C) -54, Low surface energy plastics
Technical Data for 3M PR5 Rite-Lok Cyanoacrylate
1 Part or 2 Part
- 1 Part or 2 Part - 1 Part
- Porous Substrates - porous substrate surfaces
- Low Surface Energy - Low surface energy plastics
- Metal - in combination with metal
- Plastic - difficult-to-bond plastic, ABS, Low surface energy plastics
- Polyethylene (LDPE, HDPE) - polyethylene
- Polyvinyl chloride (PVC) - heavily plasticized PVC
- EPM/EPDM - EPDM
- Composites - composite
- Other - like substrates, Santoprene, Viton, acidic surfaces, leather
- Other - on assemblies with very close-fitting parts and smooth, even surfaces, wick into bonding gaps of assembled parts
- Cyanoacrylate (CA) - Cyanoacrylate
- Other - Ethyl
- Other - Hand applied
- Moisture / Condensation Cure - Moisture
- Clear / Transparent - Clear
Cure Time (min) 1,440 Viscosity (cPs) very low, 2 to 6 Test Method Fixture or Handling Strength Time (min) 0.02 to 0.17
Tensile Strength (psi) 2,900 Test Method
Chemical Resistance Excellent, Most oils Relative Solvent Resistance Chemical Resistance: Excelent Solvent resistance High Temperature Resistance (°C) 82 Low Temperature Resistance (°C) -54, Low surface energy plastics
Specific Gravity 1.05 (g/ml)
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. Shelf Life Temperature (°F) 60 to 80, 40 Shelf Life Type From the date of shipment Shelf Life (mon) 12
Best Practices for 3M PR5 Rite-Lok Cyanoacrylate
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).
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.
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
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