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Description for 3M 444PC
High tack acrylic adhesive with polycoated kraft linerChemical Resistance Chemical Resistance: Medium-Low solvent resistance Application Type Bond, Gaskets, Hold 1 Part or 2 Part 1-Part Material Form Double-Coated Tape Substrate Metal, Plastic, Polycarbonate, Polyester, Polypropylene, Steel, Stainless Steel, Foam, ABS Industry Cellular phone lens, Nameplates, Splicing, Laptops, Signs, Electronics Manufacturer 3M Chemistry Acrylic Cure Method Pressure sensitive Application Temperature (°F) 70 to 100 Color Tan High Temperature Resistance (°C) 121, 82 Density (g/cm³) 1.012 (g/cc) -
Technical Data for 3M 444PC
Overview
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Chemical Resistance
- Chemical Resistance : Relative Solvent Resistance - Medium-Low solvent resistance
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Application Type
- Gasketing - Gaskets
- Adhesive - Bond, Hold
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1 Part or 2 Part
- 1-Part
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Material Form
- Tape - Double-Coated Tape
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Substrate
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Industry
- Sign - Signs
- Storage & Graphics - Laptops
- Electronics - Cellular phone lens
- Industrial - Sheets
- Splicing
- Printing and Graphics - Nameplates
- Other - Film
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Chemistry
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Application Method
- Contact
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Cure Method
- Pressure Sensitive (min) - Pressure sensitive
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Color
- Brown - Tan
Specifications
Cure Specs
Application Temperature (°F) 70 to 100 Bond Strength
General Bond Strength (psi) High Peel Strength (piw) 32 (Oz./in.), 61 (Oz./in.), 86 (Oz./in.), 115 (Oz./in.), 55 (Oz./in.), 64 (Oz./in.), 61 (Oz./in.), 43 (Oz./in.) Test Method Shear Strength (psi) 1000 (grams), 500 (grams) Test Method Material Resistance
UV Resistance Medium High Temperature Resistance (°C) 121, 82 Test Method Other Properties
Density (g/cm³) 1.012 (g/cc) Business Information
Shelf Life Details Store in original carton at 70°F (21°C) and 50% relative humidity;If stored under proper conditions, product retains its performance and properties for two years from date of manufacture.. Shelf Life Temperature (°F) 70 Shelf Life Type From date of manufacture Shelf Life (mon) 24 -
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Best Practices for 3M 444PC
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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 or heptane.*
*Note: Carefully read and follow the manufacturer’s precautions and directions for use when working with 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 improves bond strength.
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.
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Comparable Materials for 3M 444PC
Spec Engine® Results
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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.
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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.
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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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Peel Strength Test Methods
| Peel Strength | Type | Substrate | Test Time | Test Temperature | Test Method |
|---|---|---|---|---|---|
| 32 (Oz./in.) | 90° Peel strength | Stainless steel | 15 min | 25°C | Adhesion to stainless steel ASTM D3330 - 90 degree |
| 61 (Oz./in.) | 90° Peel strength | Stainless steel | 4,320 min | 25°C | Adhesion to stainless steel ASTM D3330 - 90 degree |
| 86 (Oz./in.) | 90° Peel strength | Stainless steel | 4,320 min | 70°C | Adhesion to stainless steel ASTM D3330 - 90 degree |
| 115 (Oz./in.) | 180° Peel strength | 4,320 min | 25°C | ASTM D3330 - 180 degree, 2 mil al foil | |
| 55 (Oz./in.) | 90° Peel strength | ABS | 4,320 min | 25°C | Adhesion to other surfaces ASTM D3330 – 90 degree,2 mil al foil |
| 64 (Oz./in.) | 90° Peel strength | Polycarbonate | 4,320 min | 25°C | Adhesion to other surfaces ASTM D3330 – 90 degree,2 mil al foil |
| 61 (Oz./in.) | 90° Peel strength | Polyester | 4,320 min | 25°C | Adhesion to other surfaces ASTM D3330 – 90 degree,2 mil al foil |
| 43 (Oz./in.) | 90° Peel strength | Polypropylene | 4,320 min | 25°C | Adhesion to other surfaces ASTM D3330 – 90 degree,2 mil al foil |
Shear Strength Test Methods
| Shear Strength | Test Time | Test Temperature | Test Method |
|---|---|---|---|
| 1000 (grams) | 48,780 sec | 22°C | ASTM D3654 modified -(.5 inch2 sample size) |
| 500 (grams) | 180 sec | 70°C | ASTM D3654 modified - (.5 inch2 sample size) |
High Temperature Resistance Test Methods
| High Temperature Resistance | Test Method |
|---|---|
| 121°C | Relative High Temperature Operating Ranges: Short Term (minutes, hours) |
| 82°C | Relative High Temperature Operating Ranges: Long Term (days, weeks) |
