3M PR80

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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.

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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

Best Practices for 3M PR80

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Technical Data for 3M PR80

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Overview

Chemical Resistance
- Chemical Resistance - Excellent, Most oils
- Chemical Resistance : Relative Solvent Resistance - Excelent Solvent resistance
Application Type
- Adhesive - Bond
1 Part or 2 Part
- 1-Part
Material Form
- Liquid
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
Chemistry
- Toughened - Rubber toughened cyanoacrylate
- Other - Ethyl Hybrid
Application Method
- Other - Hand applied
Cure Method
- Moisture / Condensation Cure - Moisture
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

Best Practices for 3M PR80

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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.
  
  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
  
  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.
Comparable Materials for 3M PR80

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