3M 9851

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Description for 3M 9851

Double Coated tape with moderate performance rubber adhesive

Chemical Resistance	Excellent
Application Type	Bond
1 Part or 2 Part	1-Part
Material Form	Double-Coated Tape
Manufacturer	3M
Chemistry	Rubber
Cure Method	Pressure Sensitive
Application Temperature (°F)	70 to 100
High Temperature Resistance (°C)	121, 177, 66

Best Practices for 3M 9851

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Technical Data for 3M 9851

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Overview

Chemical Resistance
- Chemical Resistance - Excellent
Application Type
- Adhesive - Bond
1 Part or 2 Part
- 1-Part
Material Form
- Tape - Double-Coated Tape
Chemistry
- Other - Rubber
Application Method
- Dispenser - Lamination equipment
Cure Method
- Pressure Sensitive (min) - Pressure Sensitive

Specifications

Cure Specs

Application Temperature (°F)	70 to 100

Material Resistance

High Temperature Resistance (°C)	121, 177, 66

Hardness

Flexibility	Firm

Best Practices for 3M 9851

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1. Surface Preparation
  
  To obtain optimum adhesion, all substrate surfaces must be clean and dry. A typical cleaning solvent is an isopropyl alcohol/water solution with a mixture ratio of 50:50 (rubbing alcohol). Be sure to follow solvent manufacturer’s precautions and directions for use when using solvents.
2. Application
  
  Ideal tape application temperature range is 70°F to 100°F (21°C to 38°C). Initial tape application to surfaces at temperatures below 50°F (10°C) is not recommended because the adhesive becomes too firm to adhere readily. However, once properly applied, low temperature holding is generally satisfactory.
  
  Bond strength is dependent upon the amount of adhesive-to-surface contact developed. Firm application pressure develops better adhesive contact and helps improve bond strength. The bond strength will increase as the adhesive flows onto the surface. At room temperature approximately 50% of the ultimate strength will be achieved after 20 minutes, 90% after 24 hours and 100% after 72 hours. In some cases ultimate bond strength can be achieved more quickly by exposure of the bond to elevated temperatures (e.g. 150°F or 66°C for one hour). This provides better adhesive wet-out onto the surface.
  
  Please also refer to the technical bulletin of “Lamination Techniques for Converters for Laminating Adhesives” for more useful information on lamination techniques.
Comparable Materials for 3M 9851

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Spec Engine^® Results
- VHB Tape 4646(3M)
  • Dark gray • Interior bonding applications • Exterior bonding applications • Replace spot welds • Excellent solvent resistance. • Replace liquid adhesives • Replace rivets • High temperature resistance • UL 746C • Excellent durability.
- Single-Coated Urethane Foam Tape 4108(3M)
  A natural-white, firm, high-density, open-cell foam with pressure-sensitive adhesive on one side. The acrylic adhesive offers high initial quick stick to many types of surfaces along with excellent shear strength and high temperature performance.
- 4932(3M)
  White, closed-cell acrylic foam carrier • Good adhesion to polypropylene and many powder paints• Apply as low as 50°F (10°C)
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3M 9851

Description for 3M 9851