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 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 - Most oils
- Chemical Resistance : Relative Solvent Resistance - Excellent Solvent Resistance
1 Part or 2 Part
- 1 Part or 2 Part - 1 Part
- Cyanoacrylate (CA) - Cyanoacrylate
- Other - Ethyl Hybrid
- Other - Hand applied
- Moisture / Condensation Cure - Moisture
- Clear / Transparent - Clear
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
Shear Strength (psi) 2,900 Test Method Impact Strength (psi) Impact strength
High Temperature Resistance (°C) 160 Impact Resistance Impact Resistance Low Temperature Resistance (°C) -65 Vibration Resistance/Shock Resistance vibration resistance
Specific Gravity 1.100
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
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).
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.
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
Spec Engine® Results