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Description for Henkel Loctite 454
Designed for the assembly of difficult-to-bond materials which require uniform stress distribution and strong tension and/or shear strength.Brand Loctite Chemical Resistance Ethanol, Chemical Resistance: Solvent, Freon TA, Gasoline, Isopropanol, Motor Oil, Chemical resistance Application Type Bond, Adhesive: Instant Adhesives 1 Part or 2 Part 1-Part Material Form Gel Substrate Aluminum (etched), Fabric, Glass, Metals, Neoprene, Paper, Plastics, Polycarbonate, PVC, Nitrile, Mild steel (grit blasted), Wood, Porous Substrates, Zinc dichromate, Phenolic, Elastomers, ABS, Leather, Buna-N, Steel (degreased), Chipboard, Steel (grit blasted) Manufacturer Henkel Chemistry Cyanoacrylate, Ethyl cyanoacrylate Cure Method Humidity, Room Temperature / Air Dry Cure Temperature (°C) 22, 22 Cure Time (min) >1,440, >30 Viscosity (cPs) High, 150 to 450, 18,000 to 40,000, 100,000 to 300,000 Color Slightly cloudy, Colorless, Slightly cloudy, Straw colored gel, Clear / Transparent High Temperature Resistance (°C) 100, 60, 80, 120 Volume Resistivity (O) 10e15 (ohms/cm) Key Specifications ABS, CFIA -
Technical Data for Henkel Loctite 454
Overview
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Chemical Resistance
- Chemical Resistance - Ethanol, Freon TA, Gasoline, Isopropanol, Motor Oil
- Chemical Resistance : Relative Solvent Resistance - Solvent
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1 Part or 2 Part
- 1-Part
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Material Form
- Gel
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Substrate
- Porous Substrates
- Elastomer - Elastomers
- Leather
- Glass
- Metal - Metals
- Aluminum - Aluminum (etched)
- Steel - Mild steel (grit blasted), Steel (degreased), Steel (grit blasted)
- Zinc - Zinc dichromate
- Plastic - Plastics
- Polycarbonate
- Polyvinyl chloride (PVC) - PVC
- Phenolic
- ABS
- Rubber - Nitrile, Buna-N
- Neoprene
- Wood - Chipboard
- Fabric
- Paper
- Other - Absorbent materials, DIfficult to bond materials
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Chemistry
- Cyanoacrylate (CA) - Cyanoacrylate, Ethyl cyanoacrylate
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Cure Method
- Room Temperature / Air Dry
- Moisture / Condensation Cure - Humidity
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Color
- Clear / Transparent - Colorless
- Off-White - Slightly cloudy
- White - Slightly cloudy
- Yellow - Straw colored gel
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Key Specifications
- ABS (American Bureau of Shipping) - ABS
- FDA (U.S. Food & Drug Administration) and/or CFIA (Canadian Food Inspection Agency) - CFIA
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Brand
- Loctite
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Also Known As
- Old Name - 454 Prism
Specifications
Cure Specs
Cure Temperature (°C) 22, 22 Cure Time (min) >1,440, >30 Viscosity (cPs) High, 150 to 450, 18,000 to 40,000, 100,000 to 300,000 Test Method Fixture or Handling Strength Time (min) 0.50 to 1.00, 0.03 to 0.17, 0.17 to 0.25, <0.08, <0.08, 0.08 to 0.17, 0.17 to 0.25, <0.08, <0.08, 0.50 to 1.00, 0.25 to 0.50, 0.08 to 0.17, 0.17 to 0.33, 0.08 to 0.25, 0.08 to 0.17 Test Method Bond Strength
Shear Strength (psi) 3,030, 2,480, 1,670, 1,200, 1,030, 1,780, 1,120, 190, 160, Strong, 1,390, 3,380, 480, 970 Test Method Tensile Strength (psi) >870, 2,190 Test Method Material Resistance
High Temperature Resistance (°C) 100, 60, 80, 120 Conductivity
Dissipation Factor <0.02000, <0.02000, <0.02000 Test Method Dielectric Strength (V/mil) 25 kV/mm Test Method Dielectric Constant 2.65, 2.75, 2.65 Test Method Thermal Conductivity (W/m°K) 0.10 Test Method Volume Resistivity (O) 10e15 (ohms/cm) Test Method Other Properties
Glass Transition Temp (Tg) (°C) 120 Test Method Specific Gravity 1.100 Test Method Coefficient of Thermal Expansion (CTE) 80e-6 (K-1) Test Method Business Information
Shelf Life Details Store product in the unopened container in a dry location.;Optimal Storage: 2 °C to 8 °C. Storage below 2 °C or greater than 8 °C can adversely affect product properties. Material removed from containers may be contaminated during use. Do not return product to the original container. Shelf Life Temperature (°F) 36 to 46 -
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Best Practices for Henkel Loctite 454
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Surface Preparation
Bond areas should be clean and free from grease. Clean all surfaces with a Loctite® cleaning solvent and allow to dry.
To improve bonding on low energy plastic surfaces, Loctite® Primer may be applied to the bond area. Avoid applying excess Primer. Allow the Primer to dry.
LOCTITE® Activator may be used if necessary. Apply it to one bond surface (do not apply activator to the primed surface where Primer is also used). Allow the Activator to dry.
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Application
Apply adhesive to one of the bond surfaces (do not apply the adhesive to the activated surface). Do not use items like tissue or a brush to spread the adhesive. Assemble the parts within a few seconds. The parts should be accurately located, as the short fixture time leaves little opportunity for adjustment.
LOCTITE® Activator can be used to cure fillets of product outside the bond area. Spray or drop the activator on the excess product.
Bonds should be held fixed or clamped until adhesive has fixtured.
Product should be allowed to develop full strength before subjecting to any service loads (typically 24 to 72 hours after assembly, depending on bond gap, materials and ambient conditions).
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Curing
Under normal conditions, the atmospheric moisture initiates the curing process. Although full functional strength is developed in a relatively short time, curing continues for at least 24 hours before full chemical/solvent resistance is developed.
Cure Speed vs. Substrate: The rate of cure will depend on the substrate used.
Cure Speed vs. Bond Gap: The rate of cure will depend on the bondline gap. Thin bond lines result in high cure speeds, increasing the bond gap will decrease the rate of cure.
Cure Speed vs. Humidity: The rate of cure will depend on the ambient relative humidity. The best results are achieved when the relative humidity in the working environment is 40% to 60% at 22°C. Lower humidity leads to slower cure. Higher humidity accelerates it, but may impair the final strength of the bond.
Cure Speed vs. Activator: Where cure speed is unacceptably long due to large gaps, applying activator to the surface will improve cure speed. However, this can reduce ultimate strength of the bond and therefore testing is recommended to confirm effect.
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Clean-Up
Excess adhesive can be dissolved with Loctite cleanup solvents, nitromethane or acetone.
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Comparable Materials for Henkel Loctite 454
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731(PermaBond)One part component is a toughened cyanoacrylate with very good impact and peel strength. The product adheres to a variety of surfaces including steel, aluminum, galvanized steel, plastics and elastomers.
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3D90(PermaBond)
A low odour, non-fogging, non-frosting alkoxyethyl cyanoacrylate.
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Fixture or Handling Strength Time Test Methods
| Fixture or Handling Strength Time | Fixture-Handling Strength Test Method |
|---|---|
| 0.50 to 1.00 min | This is defined as the time to develop a shear strength of 0.1 N/mm². |
| 0.03 to 0.17 min | This is defined as the time to develop a shear strength of 0.1 N/mm². |
| 0.17 to 0.25 min | This is defined as the time to develop a shear strength of 0.1 N/mm². |
| <0.08 min | This is defined as the time to develop a shear strength of 0.1 N/mm². |
| <0.08 min | This is defined as the time to develop a shear strength of 0.1 N/mm². |
| 0.08 to 0.17 min | This is defined as the time to develop a shear strength of 0.1 N/mm². |
| 0.17 to 0.25 min | This is defined as the time to develop a shear strength of 0.1 N/mm². |
| <0.08 min | This is defined as the time to develop a shear strength of 0.1 N/mm². |
| <0.08 min | This is defined as the time to develop a shear strength of 0.1 N/mm². |
| 0.50 to 1.00 min | This is defined as the time to develop a shear strength of 0.1 N/mm². |
| 0.25 to 0.50 min | This is defined as the time to develop a shear strength of 0.1 N/mm². |
| 0.08 to 0.17 min | This is defined as the time to develop a shear strength of 0.1 N/mm². |
| 0.17 to 0.33 min | This is defined as the time to develop a shear strength of 0.1 N/mm². |
| 0.08 to 0.25 min | This is defined as the time to develop a shear strength of 0.1 N/mm². |
| 0.08 to 0.17 min | This is defined as the time to develop a shear strength of 0.1 N/mm². |
Viscosity Test Methods
| Viscosity | Test Method | Temperature |
|---|---|---|
| High | ||
| 150 to 450 cPs | Casson Viscosity, 25 °C, mPa·s (cP): Cone and plate rheometer | 25°C |
| 18,000 to 40,000 cPs | Viscosity, Brookfield - RVT, 25 °C, mPa·s (cP): Spindle TC, speed 20 rpm, Helipath | 25°C |
| 100,000 to 300,000 cPs | Viscosity, Brookfield - RVT, 25 °C, mPa·s (cP): Spindle TC, speed 2.5 rpm, Helipath | 25°C |
Tensile Strength Test Methods
| Tensile Strength | Cure Time | Cure Temperature | Substrate | Test Method |
|---|---|---|---|---|
| >870 psi | 0.50 min | 22°C | Buna-N | ISO 6922, Cured for 30 seconds @ 22 °C |
| 2,190 psi | 4,320 min | 22°C | Buna-N | ISO 6922, Cured for 72 hours @ 22 °C |
Shear Strength Test Methods
| Shear Strength | Type | Substrate | Test Method |
|---|---|---|---|
| 3,030 psi | Lap shear strength | Steel (grit blasted) | ISO 4587 |
| 2,480 psi | Lap shear strength | Aluminum (etched) | ISO 4587 |
| 1,670 psi | Lap shear strength | Zinc Dichromate | ISO 4587 |
| 1,200 psi | Lap shear strength | ABS | ISO 4587, substrate failure |
| 1,030 psi | Lap shear strength | PVC | ISO 4587, substrate failure |
| 1,780 psi | Lap shear strength | Phenolic | ISO 4587, substrate failure |
| 1,120 psi | Lap shear strength | Polycarbonate | ISO 4587 |
| 190 psi | Lap shear strength | Nitrile | ISO 4587, substrate failure |
| 160 psi | Lap shear strength | Neoprene | ISO 4587, substrate failure |
| Strong | |||
| 1,390 psi | Block Shear Strength | Polycarbonate | ISO 13445 |
| 3,380 psi | Block Shear Strength | ABS | ISO 13445 |
| 480 psi | Block Shear Strength | PVC | ISO 13445 |
| 970 psi | Block Shear Strength | Phenolic | ISO 13445, substrate failure |
Dielectric Constant Test Methods
| Dielectric Constant | Temperature | Test Method |
|---|---|---|
| 2.65 | 22°C | ASTM D 150, After 24 hours @ 22 °C, 0.1 KHz |
| 2.75 | 22°C | ASTM D 150, After 24 hours @ 22 °C, 1 KHz |
| 2.65 | 22°C | ASTM D 150, After 24 hours @ 22 °C, 10 KHz |
Dielectric Strength Test Methods
| Dielectric Strength | Temperature | Test Method |
|---|---|---|
| 25 kV/mm | 22°C | ASTM D 149, After 24 hours @ 22 °C |
Dissipation Factor Test Methods
| Dissipation Factor | Temperature | Test Method |
|---|---|---|
| <0.02000 | 22°C | ASTM D 150, After 24 hours @ 22 °C, 0.1 KHz |
| <0.02000 | 22°C | ASTM D 150, After 24 hours @ 22 °C, 1 KHz |
| <0.02000 | 22°C | ASTM D 150, After 24 hours @ 22 °C, 10 KHz |
Thermal Conductivity Test Methods
| Thermal Conductivity | Temperature | Test Method |
|---|---|---|
| 0.10 W/m°K | 22°C | ASTM C 177, After 24 hours @ 22 °C |
Volume Resistivity Test Methods
| Volume Resistivity | Temp (°C) | Test Method |
|---|---|---|
| 10e15 (ohms/cm) | 22°C | ASTM D 257, After 24 hours @ 22 °C |
Coefficient of Thermal Expansion (CTE) Test Methods
| Coefficient of Thermal Expansion (CTE) | CTE Temperature (°C) | CTE Test Method |
|---|---|---|
| 80e-6 (K-1) | 22°C | ASTM D 696, After 24 hours @ 22 °C |
Glass Transition Temp (Tg) Test Methods
| Glass Transition Temp (Tg) | Glass Transition Temperature (Tg) Test Method |
|---|---|
| 120°C | ASTM E 228, After 24 hours @ 22 °C |
Specific Gravity Test Methods
| Specific Gravity | Temperature |
|---|---|
| 1.100 | 25°C |
