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Description for 3M PR80
Formulated with a unique elastomer that maximizes impact, vibration, peel, and thermal cycling resistance while providing tough flexible bonds. These adhesives are ideally suited for bonding flexible substrates and dissimilar materials.Chemical Resistance Excellent, Chemical Resistance: Excelent Solvent resistance, Most oils Application Type Bond 1 Part or 2 Part 1-Part Material Form Liquid Substrate dissimilar materials, porous substrate surfaces, polyethylene, leather, Paper, Low surface energy plastics, polypropylene, Low surface energy plastics Manufacturer 3M Chemistry Rubber toughened cyanoacrylate, Ethyl Hybrid Cure Method Moisture Cure Time (min) 1,440 Viscosity (cPs) medium, 300 to 1,000 Color Black High Temperature Resistance (°C) Thermal cycling -
Technical Data for 3M PR80
Overview
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Chemical Resistance
- Chemical Resistance - Excellent, Most oils
- Chemical Resistance : Relative Solvent Resistance - Excelent Solvent resistance
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Application Type
- Adhesive - Bond
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1 Part or 2 Part
- 1-Part
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Material Form
- Liquid
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Substrate
- Porous Substrates - porous substrate surfaces
- Leather
- Low Surface Energy - Low surface energy plastics
- Dissimilar Substrates - dissimilar materials
- Plastic - Low surface energy plastics
- Polyethylene (LDPE, HDPE) - polyethylene
- Polypropylene
- Paper
- Other - flexible substrates, acidic surfaces
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Chemistry
- Toughened - Rubber toughened cyanoacrylate
- Other - Ethyl Hybrid
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Application Method
- Other - Hand applied
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Cure Method
- Moisture / Condensation Cure - Moisture
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Color
- Black
Specifications
Cure Specs
Cure Time (min) 1,440 Viscosity (cPs) medium, 300 to 1,000 Test Method Fixture or Handling Strength Time (min) 0.33 to 0.83 Set Time (min) very fast Bond Strength
Peel Strength (piw) Peel Resistance Shear Strength (psi) 1,500 Test Method Impact Strength (psi) Impact strength Material Resistance
High Temperature Resistance (°C) Thermal cycling Impact Resistance Impact resistance Vibration Resistance/Shock Resistance Vibration resistance Other Properties
Specific Gravity 1.100 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.;Rite-Lok™Rubber Toughened 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) 140 to 176, 39 Shelf Life Type From the date of shipment Shelf Life (mon) 12 -
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Best Practices for 3M PR80
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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.
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).
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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.
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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, Rite-Lok™ Rubber Toughened Instant Adhesive bonds are suitable for use at temperatures up to 200F (93°C) continuously, intermittently up to 250°F (121°C). At 220°F (105°C) the bond will be approximately 40% of the strength at room temperature.
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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