2:1 epoxy structural adhesive
|
Epoxy |
Feature |
color |
Viscosity (cps) |
Ratio |
Working time (minute) |
Fixture time (minute) |
Curing time (Hour) |
|
EST-420DP |
Toughened, flowalbe, fire retardant |
Off-white, Black |
8,000-14,000 |
2:1 |
15-30 |
120 |
24 |
|
EST-460DP |
Toughened, flowalbe, fire retardant |
Off-white |
20,000-50,000 |
2:1 |
60-90 |
240 |
24 |
|
EST-490DP |
toughness and high strength; excellent heat and environmental resistance |
Black |
70,000 |
2:1 |
90 |
240 |
24 |
|
EST-HP20 |
Easy mixed, toughened |
Clear |
30,000 |
2:1 |
20 |
120 |
24 |
|
EST-HP60 |
High performance |
Clear |
45,000 |
2:1 |
60 |
≧180 |
24 |
|
EST-HP120 |
High temperature resistant, chemical resistant |
Clear |
30,000 |
2:1 |
120 |
≧180 |
24 |
|
EST-CL30 |
Middle working time, chemical resistant |
Clear |
10,000 |
2:1 |
30 |
≧180 |
24 |
General Description
UVALAM EST-420DP is a toughened, two-part 2:1, off-white or Black, epoxy structural adhesive, offering outstanding shear and peel adhesion, and very high levels of durability.
UVALAM EST-420DP provides good strength along with high impact and fatigue resistance to meet demanding bonding challenges.
UVALAM EST-420DP can replace mechanical fasteners, screws, rivets and spot welds in many applications.
Features
• High shear strength
• Easy mixing
• High peel strength
• Controlled flow
• Outstanding environmental performance
• 20 minute worklife
Typical Uncured Physical Properties
|
Product |
EST-420DP |
|
Viscosity @ 73°F (23°C) |
A: 20,000-50,000 cps B: 8,000-14,000 cps |
|
Base Resin |
A: EPOXY B: AMINE |
|
Color |
A: WHITE, BLACK B: AMBER |
|
Mix Ratio (B:A) |
Volume ratio: 2:1 Weight ratio: 2:0.98 |
|
Worklife, 73°F (23°C) |
5g mixed: 30 minutes 10g mixed: 20 minutes 20g mixed: 10 minutes |
Typical cured Physical Properties
|
Product |
EST-420DP |
|
Color |
Opaque, off-white or Black |
|
Shore D Hardness |
75-80 |
|
Thermal Coefficient of Thermal Expansion Below Tg (in./in./°C) Above Tg |
85 x 10-6 (white); 80 x 10-6 (Black); 147 x 10-6(white); 194 x 10-6(Black); |
|
Thermal Conductivity (btu - ft./ft.2 - hr. - °F) @ 45°C |
0.1 |
|
Electrical Dielectric Strength |
690 volts/mil
|
|
Volume Resistivity |
1.3 x 1014 ohm-cm (white); 1.6 x 1015 ohm-cm (Black) |
Typical Adhesive Performance Characteristics
Aluminum, Overlap Shear, at Temperature (PSI)
|
|
EST-420DP |
|
-67°F (-55°C) 73°F (23°C) 180°F (82°C) (15 min.) (30 min.) (60 min.) (4 hr.) 250°F (121°C) (15 min.) |
4500 4500 450 700 750 2500 200 |
Metals, Overlap Shear, Tested @ 73°F (23°C) (PSI)
|
|
EST-420DP |
|
Aluminum |
4000 |
|
Cold Rolled Steel |
4000 |
|
Copper |
4000 |
|
Brass |
4000 |
|
Stainless Steel |
4000 |
|
Galvanized Steel |
2000 |
Aluminum, T-Peel (PIW), at Temperature
|
|
EST-420DP |
|
-67°F (-55°C) 73°F (23°C) 180°F (82°C)
|
5-10 50 3-5 |
Metals, T-Peel, Tested @ 73°F (23°C)
|
|
EST-420 |
|
Aluminum 17-20 mil bondline Aluminum 5-8 mil bondline |
50 40 |
|
Cold Rolled Steel 17-20 mil bondline Oakite degreased MEK/abrade/MEK |
40 25 |
Aluminum, Bell Peel (PIW), at Temperature
|
|
EST-420DP |
|
-67°F (-55°C) 73°F (23°C) 180°F (82°C) |
20 80 18 |
Cartridge size:
2:1 dual PP cartridge 50ml;
2:1 dual PP cartridge 400ml.
Storage
Store product at 60-80°F (15-27°C) or refrigerate for maximum shelf life.
Shelf Life
This product has a shelf life of 12 months in original containers.
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