PRELIMINARY
PRODUCT DESCRIPTION
LOCTITE
廬
Product 4062 is a very low viscosity, very fast curing,
single component cyanoacrylate adhesive.
TYPICAL APPLICATIONS
Rapid bonding of a wide range of metal, plastic or elastomeric
materials. The low viscosity is particularily suitable for bonding
applications where controlled penetration of adhesive is
required.
PROPERTIES OF UNCURED MATERIAL
Typical
Value
Chemical Type
Ethyl Cyanoacrylate
Appearance
Clear liquid
1.05
Specific Gravity @ 25擄C
Viscosity @ 25擄C, mPa.s (cP)
Brookfield LVF
Spindle 1 @ 30 rpm
2
>80
Flash Point (TCC),
擄C
Range
0
0
Technical Data Sheet
Product 4062
February 1998
Cure speed vs. humidity
The rate of cure will depend on the ambient relative humidity.
The graph below shows the tensile strength developed with
time on Buna N rubber at different levels of humidity.
100
%of Full Strength
60%RH
75
40%RH
50
20%RH
25
10
20
30
40
50
60
Cure Time, Seconds
1 to 3
TYPICAL PROPERTIES OF CURED MATERIAL
Physical Properties
Coefficient of thermal expansion, ASTM D696, K
-1
Coefficient of thermal conductivity, ASTM C177, W.m
-
1
K
-1
Glass transition temperature, ASTM E228,
擄C
80 x 10
-
6
0.1
120
Loss
<0.02
<0.02
<0.02
1x
10
16
1x
10
16
25
TYPICAL CURING PERFORMANCE
Under normal conditions, the surface moisture initiates the
hardening process. Although 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 substrate used. The table
below shows the fixture time achieved on different materials at
22潞C, 50% relative humidity. This is defined as the time to
2
develop a shear strength of 0.1 N/mm (14.5 psi) tested on
specimens according to ASTM D1002.
Substrate
Steel (degreased)
Aluminium
Neoprene
Nitrile rubber
ABS
PVC
Polycarbonate
Phenolic materials
Fixture Time, seconds
3 to 20
2 to 5
<5
<5
2 to 5
2 to 5
3 to 10
<5
Electrical Properties
Constant
Dielectric constant & loss, 25擄C, ASTM D150,
measured at
100Hz
1kHz
10 kHz
Volume resistivity, ASTM D257,
鈩?cm
Surface resistivity , ASTM D257,
鈩?/div>
Dielectric strength, ASTM D149, kV/mm
2.65
2.75
2.75
PERFORMANCE OF CURED MATERIAL
(After 24 hr at 22擄C)
Value
Shear Strength, ASTM D1002, DIN 53283
Grit Blasted Steel, N/mm虜
(psi)
Gritblasted Aluminium, N/mm虜
(psi)
Zinc dichromate, N/mm虜
(psi)
ABS, N/mm虜
(psi)
PVC, N/mm虜
(psi)
Polycarbonate, N/mm虜
(psi)
Phenolic, N/mm虜
(psi)
Neoprene rubber, N/mm虜
(psi)
Nitrile rubber, N/mm虜
(psi)
16
(2320)
13
(1885)
5
(725)
7*
(1015)
7*
(1015)
10*
(1450)
8
(1160)
0.3*
(43.5)
0.3*
(43.5)
Typical
Range
12 to 20
(1740 to 2900)
11 to 15
(1595 to 2175)
3 to 8
(435 to 1160)
6 to 8
(870 to 1160)
6 to 8
(870 to 1160)
8 to 12
(1160 to 1740)
6 to 12
(870 to 1740)
0.1 to 0.5
(14.5 to 72.5)
0.1 to 0. 5
(14.5 to 72.5)
Cure speed vs. bond gap
The rate of cure will depend on the bondline gap. High cure
speed is favoured by thin bond lines. Increasing the bond gap
will slow down the rate of cure.
Cure speed vs. activator
Where cure speed is unacceptably long due to large gaps or low
relative humidity applying activator to the surface will improve
cure speed. However, this can reduce the ultimate strength of
the bond, therefore testing is recommended to confirm effect
.
Tensile Strength, ASTM D2095, DIN
53288
Grit Blasted Steel, N/mm虜
16
(psi)
(2320)
Buna N rubber, N/mm虜
0.3*
(psi)
(43.5)
* Adhesive exceeds strength of bonded material
10 to 20
(1450 to 2900)
0.1 to 0. 5
(14.5 to 72.5)
NOT FOR PRODUCT SPECIFICATIONS
THE TECHNICAL DATA CONTAINED HEREIN ARE INTENDED AS REFERENCE ONLY.
PLEASE CONTACT LOCTITE CORPORATION QUALITY DEPARTMENT FOR ASSISTANCE AND RECOMMENDATIONS ON SPECIFICATIONS FOR THIS PRODUCT.
ROCKY HILL, CT FAX: +1 (860)-571-5473
DUBLIN, IRELAND FAX: +353-(1)-451 - 9959
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