Permabond Initiator 44 (for use with the TA series of Toughened structural acrylic adhesive)
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Permabond Initiator 44 is designed to initiate the cure of no-mix Permabond toughened acrylic adhesives such as TA459 and TA4590. The product is a monomer and therefore requires no dry time. Initiator applied to one of the bonding surfaces and the adhesives to the other. Suited to bonding tight fitting parts, using initiator provides a short cure time.
Table of Surface Activated Acrylic Adhesives, And the related Initiator Number that pairs with them
|
Grade |
TA430 and Initiator 41 or Initiator 41M |
TA435 and Initiator 41 or Initiator 41M |
TA436 and Initiator 43 |
TA437 and Initiator 41 or Initiator 41M |
TA439 and Initiator 41 or Initiator 41M* |
TA4590 and Initiator 44 |
TA4246 and Initiator 46 |
|
Color |
Amber |
Amber |
Amber |
Orange |
Amber |
Blue |
Amber |
|
Feature |
General Purpose |
High Peel Strength |
High Temp |
Anaerobic Cure |
Acid Free |
Acid Free |
MMA - very high strength |
|
Visc. cP 2.5 rpm |
50,000 |
70,000 |
60,000 |
130,000 |
- |
90,000 |
- |
|
Visc. cP 20 rpm |
20,000 |
30,000 |
25,000 |
40,000 |
1000 |
20,000 |
28,000 |
|
Specific Gravity |
1.1 |
1.0 |
1.1 |
1.1 |
1.0 |
1.1 |
1.0 |
|
Gap Fill inch (mm) |
0.02 (0.51) |
0.02 (0.51) |
0.02 (0.51) |
0.02 (0.51) |
0.006 (0.15) |
0.02 (0.51) |
0.02 (0.51) |
|
Handling Time |
3 - 5 min |
3 - 5 min |
1 - 3 min |
1 - 3 min 15 - 20 min** |
40 - 75 sec |
30 - 60 sec |
2 - 4 min |
|
Working Strength |
40 - 60 min |
30 - 60 min |
30 - 60 min |
30 - 60 min 60 - 120 min** |
3 - 5 min |
2 - 3 min |
15 - 30 min |
|
Full Cure |
24 hr |
24 hr |
24 hr |
24 hr |
24 hr |
24 hr |
24 hr |
|
Impact Strength |
10 - 15 kJ/m2 |
10 - 15 kJ/m2 |
10 - 15 kJ/m2 |
10 - 15 kJ/m2 |
10 - 20 kJ/m2 |
15 - 20 kJ/m2 |
50 - 60 kJ/m2 |
|
Shear Strength Steel |
2200-3600 psi 15 - 25 N/mm2 |
2200-3600 psi 15 - 25 N/mm2 |
2200-3600 psi 15 - 25 N/mm2 |
2000-3000 psi 14 - 20 N/mm2 |
2900-3600 psi 20 - 25 N/ mm2 |
2900-3600 psi 20 - 25 N/ mm2 |
4800-5100 psi 33 - 35 N/mm2 |
|
Peel Strength Aluminum |
10 - 14 PIW 45-65 N/25mm |
18 - 22 PIW 85-100 N/25mm |
10 - 14 PIW 45-65 N/25mm |
18 - 22 PIW 85-100 N/25mm |
18 - 22 PIW 85-100 N/25mm |
18 - 22 PIW 85-100 N/25mm |
33 - 40 PIW 150-180 N/25mm |
|
CTE |
80 x 10-6 1/K |
80 x 10-6 1/K |
80 x 10-6 1/K |
80 x 10-6 1/K |
80 x 10-6 1/K |
80 x 10-6 1/K |
80 x 10-6 1/K |
|
Thermal Conductivity |
0.1 W/(m.K) |
0.1 W/(m.K) |
0.1 W/(m.K) |
0.1 W/(m.K) |
0.1 W/(m.K) |
0.1 W/(m.K) |
0.1 W/(m.K) |
|
Dielectric Constant |
4.6 |
4.6 |
4.6 |
4.6 |
4.6 |
4.6 |
4.6 |
|
Dielectric Strength |
30 - 50 kVmm |
30 - 50 kVmm |
30 - 50 kVmm |
30 - 50 kVmm |
30 - 50 kVmm |
30 - 50 kVmm |
30 - 50 kVmm |
|
Volume Resistivity |
2 x 1013 Ohm.cm |
2 x 1013 Ohm.cm |
2 x 1013 Ohm.cm |
2 x 1013 Ohm.cm |
2 x 1013 Ohm.cm |
2 x 1013 Ohm.cm |
2 x 1013 Ohm.cm |
|
Temperature Range |
-65 to +250°F -55 to +120°C |
-65 to +250°F -55 to +120°C |
-65 to +300°F -55 to +150°C |
-65 to +390°F -55 to +200°C |
-65 to +330°F -55 to +165°C |
-65 to +330°F -55 to +165°C |
-40 to +250°F -40 to +120°C |