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Description for 3M 921XL
Tape has a liner that extends beyond the width of the adhesive to provide easy liner starting and removal.Chemical Resistance Chemical Resistance: Low Application Type Bond, Mounting, joining 1 Part or 2 Part 1-Part Material Form Extended Liner Tapes Substrate Steel Manufacturer 3M Chemistry Acrylic Cure Method Pressure Sensitive Application Temperature (°F) 70 to 100 Color Clear High Temperature Resistance (°C) 65, 93 -
Technical Data for 3M 921XL
Overview
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Chemical Resistance
- Chemical Resistance : Relative Solvent Resistance - Low
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Application Type
- Adhesive - Bond, Mounting, joining
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1 Part or 2 Part
- 1-Part
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Material Form
- Tape - Extended Liner Tapes
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Substrate
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Industry
- Industrial
- Other - ideal for mounting and joining materials where repositionability may be desired.
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Chemistry
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Cure Method
- Pressure Sensitive (min) - Pressure Sensitive
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Color
- Clear / Transparent - Clear
Specifications
Cure Specs
Application Temperature (°F) 70 to 100 Bond Strength
General Bond Strength (psi) 20 (oz./in.) Test Method Material Resistance
UV Resistance Excellent High Temperature Resistance (°C) 65, 93 Business Information
Shelf Life Details 18 (months) from date of manufacture when stored in original cartons at 70°F (21°C) and 50% relative humidity. Shelf Life Temperature (°F) 70 Shelf Life Type From date of manufacture Shelf Life (mon) 18 -
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Best Practices for 3M 921XL
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Surface Preparation
To obtain optimum adhesion, the bonding surfaces must be clean, dry, and well unified. Some typical surface cleaning solvents are isopropyl alcohol and heptane.
Note: Be sure to follow manufacturer’s safety precautions and directions for use when using solvents.
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Application
Bond strength is dependent upon the amount of adhesive-to-surface contact developed. Firm application pressure helps develop better adhesive contact and improve bond strength.
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.
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Comparable Materials for 3M 921XL
Spec Engine® Results
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