20420 Loctite, 20420 Datasheet
20420
Manufacturer Part Number
20420
Description
Adhesive Compound
Manufacturer
Loctite
Datasheet
1.38240.pdf
(3 pages)
Specifications of 20420
Color
Clear/Amber
Drop Ship
Yes
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
PRODUCT DESCRIPTION
LOCTITE
characteristics:
LOCTITE
cyanoacrylate adhesive formulated for electronics applications.
LOCTITE
Accelerators to attain instant cures for tacking electronics
components . Typical applications include wire tacking to coil
forms; tamper proofing adjustable components; mounting
standoffs, edge guides and stiffeners to circuit boards.
TYPICAL PROPERTIES OF UNCURED MATERIAL
TYPICAL CURING PERFORMANCE
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
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. 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.
Technology
Chemical Type
Appearance (uncured)
Components
Viscosity
Cure
Application
Key Substrates
The rate of cure will depend on the substrate used. The table
below shows the fixture time achieved on different materials
at 22 °C / 50 % relative humidity. This is defined as the time to
develop a shear strength of 0.1 N/mm².
Specific Gravity @ 25 °C
Viscosity, Brookfield - RVT, 25 °C, mPa·s (cP):
Flash Point - See MSDS
Fixture Time, seconds:
Spindle TC, speed 20 rpm, Helipath
Steel (degreased)
Aluminum
Neoprene
Rubber, nitrile
ABS
PVC
Polycarbonate
Phenolic
®
®
®
382™ is a single part, fast curing high viscosity
382™ is designed to use with TAK PAK
382™
provides
Cyanoacrylate
Ethyl cyanoacrylate
Water white to slightly cloudy gel
One part - requires no mixing
High
Humidity
Bonding
Rubbers, Plastics and Metals
the
following
4,000 to 8,000
1.05
20 to 50
10 to 30
<5
<5
15 to 40
20 to 50
30 to 70
10 to 40
product
LMS
LMS
®
TYPICAL PROPERTIES OF CURED MATERIAL
TYPICAL PERFORMANCE OF CURED MATERIAL
Cured for 24 hours @ 22 °C
Adhesive Properties
Cured for 30 seconds @ 22 °C
Cured for 2 minutes @ 22 °C, 0.05 mm gap
Cured for 24 hours @ 22 °C
Cured for 24 hours @ 22 °C, followed by 24 hours @ 121 °C, tested
@ 121 °C
Physical Properties:
Electrical Properties:
Tensile Strength, ISO 6922:
Lap Shear Strength, ISO 4587:
Lap Shear Strength, ISO 4587:
Tensile Strength, ISO 6922:
Lap Shear Strength, ISO 4587:
Coefficient of Thermal Expansion,
Coefficient of Thermal Conductivity, ISO 8302,
W/(m·K)
Glass Transition Temperature, ASTM E 228, °C
Dielectric Constant / Dissipation Factor, IEC 60250:
Volume Resistivity, IEC 60093, Ω·cm
Dielectric Breakdown Strength,
IEC 60243-1, kV/mm
Buna-N
Steel (grit blasted)
Steel (grit blasted)
Aluminum (etched)
ABS
PVC
Polycarbonate
Phenolic
Neoprene
Nitrile
Steel (grit blasted)
Steel (grit blasted)
ISO 11359-2, K
0.05-kHz
1-kHz
1,000-kHz
LOCTITE
-1
N/mm² ≥7.0
(psi)
N/mm² ≥5.2
(psi)
N/mm² 18 to 26
(psi)
N/mm² 11 to 19
(psi)
N/mm² >6
(psi)
N/mm² >6
(psi)
N/mm² >5
(psi)
N/mm² 5 to 15
(psi)
N/mm² >10
(psi)
N/mm² >10
(psi)
N/mm² 12 to 25
(psi)
N/mm² ≥8.3
(psi)
Technical Data Sheet
®
(≥1,015)
(≥754)
(2,610 to 3,770)
(1,595 to 2,755)
(>870)
(>870)
(>725)
(725 to 2,175)
(>1,450)
(>1,450)
(1,740 to 3,625)
(≥1,203)
382™
October-2008
LMS
LMS
LMS
80×10
0.1
120
10×10
25
2.3 / <0.02
2.3 / <0.02
2.3 / <0.02
-6
15
20420 Summary of contents
Page 1
... Tensile Strength, ISO 6922: Steel (grit blasted) Cured for 24 hours @ 22 °C, followed by 24 hours @ 121 °C, tested @ 121 °C Lap Shear Strength, ISO 4587: Steel (grit blasted) Technical Data Sheet ® LOCTITE 382™ October-2008 80×10 -1 0.1 120 2.3 / <0.02 2.3 / <0.02 2.3 / < ...
Page 2
... Secure the assembly and await fixturing before any further handling.. Loctite Material Specification LMS dated November-21, 2002. Test reports for each batch are available for the indicated properties. LMS test reports include selected QC test parameters considered appropriate to specifications for customer use ...
Page 3
... U.S. Patent and Trademark Office. Reference 2.1 Henkel Americas +860.571.5100 For the most direct access to local sales and technical support visit: www.henkel.com/industrial We cannot assume Henkel Europe +49.89.320800.1800 ® TDS LOCTITE 382™, October-2008 Henkel Asia Pacific +86.21.2891.8863 ...