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 |
Off-white |
30,000 |
2:1 |
20 |
120 |
24 |
|
EST-HP60 |
High performance |
Off-white |
45,000 |
2:1 |
60 |
≧180 |
24 |
|
EST-HP120 |
High temperature resistant, chemical resistant |
Off-white |
30,000 |
2:1 |
120 |
≧180 |
24 |
|
EST-CL30 |
Middle working time, chemical resistant |
colorless to slight yellowish |
10,000 |
2:1 |
30 |
≧180 |
24 |
General Description
UVALAM EST-HP120 is a Two-component 2:1, off-white, high viscosity industrial grade, epoxy Structural adhesive with extended work life.
Once mixed, the two component epoxy cures at room temperature to form a tough, amber-beige bondline with excellent resistance to peel and impact forces.
When fully cured, the epoxy offers superior thermal shock resistance, excellent mechanical and electrical properties, and withstands exposure to a wide variety of solvents and chemicals.
Typical applications
Typical applications include bonding nose cones in aerospace applications. It is also suitable for low stress, general industrial applications which require high impact and high peel strength. Bonds dissimilar materials including aluminum, steel, and other metals, as well as a variety of plastics and ceramics.
Product characteristics:
|
Chemical Type (Resin/Hardener) |
Epoxy/Polyamide |
|
Appearance (Resin) |
Off-white to beige liquid |
|
Appearance (Hardener) |
Amber liquid |
|
Appearance (Mixture) |
Amber beige |
|
Components |
Two component 2:1 (requires mixing) |
|
Viscosity |
High |
|
Mix Ratio, (by volume) |
Resin : Hardener = 2 : 1 |
|
Mix Ratio, by weight |
Resin : Hardener = 100:46 |
|
Cure |
Room temperature cure after mixing |
|
Application |
Bonding |
TYPICAL PROPERTIES OF UNCURED MATERIAL
Resin:
Specific Gravity @ 25 °C: 1.0
Viscosity: 50,000 cps
Hardener:
Specific Gravity @ 25 °C: 1.0
Viscosity: 3,000 cps
Mixed Properties:
Specific Gravity @ 25 °C: 1.0
Viscosity: 50,000 cps
TYPICAL CURING PERFORMANCE
Working life, minutes: 120
Tack Free Time, minutes: 140
Cure Speed vs. Time
The graph below shows shear strength developed with time on abraded, acid etched aluminum lapshears @23°C with an average bondline gap of 0.1 to 0.2 mm
TYPICAL PROPERTIES OF CURED MATERIAL
Cured @ 22 °C for 7 days
Physical Properties:
|
Glass Transition Temperature (Tg) |
90°C |
|
Shore Hardness, Durometer D |
80 |
|
Elongation |
10% |
|
Tensile Strength |
5,100 psi |
Electrical Properties:
|
Dielectric Breakdown Strength |
25 kV/mm |
TYPICAL PERFORMANCE OF CURED MATERIAL -Adhesive Properties
|
Substrate |
Lap Shear Strength |
|
|
N/mm² |
psi |
|
|
Steel (grit blasted) |
20 |
4,300 |
|
Aluminum (anodized) |
14 |
2,100 |
|
Stainless steel |
23 |
3,400 |
|
Polycarbonate |
6.9 |
1,300 |
|
Nylon |
2.3 |
330 |
|
Wood (Pine) to Steel (grit blasted) |
12 |
1,700 |
TYPICAL ENVIRONMENTAL RESISTANCE
Cured for 12 hours @ 65°C followed by 4 hours @ 23°C
Lap Shear Strength : Aluminum (acid etched & abraded), 0.1 to 0.2 mm gap
Hot Strength
Tested at temperature
Heat Aging
Aged at temperature indicated and tested @ 22 °C
Chemical/Solvent Resistance
Aged under conditions indicated and tested @ 23 °C.
|
|
|
% of the initial strength |
|
|
Environment |
°C |
500 hours |
1000 hours |
|
air |
87 |
/ |
100 |
|
Motor oil |
87 |
125 |
120 |
|
Unleaded gasoline |
87 |
/ |
105 |
|
Water/glycol 50/50 |
87 |
90 |
90 |
|
Salt fog |
23 |
/ |
45 |
|
95%RH |
38 |
/ |
80 |
|
Condensing Humidity |
49 |
/ |
60 |
|
water |
23 |
/ |
70 |
|
Acetone |
23 |
/ |
95 |
|
Isopropanol |
23 |
/ |
110 |
Packing Cartridge size:
2:1 dual PP cartridge 50ml;
2:1 dual PP cartridge 400ml.
Storage
Store product in the unopened container in a dry location.
Storage information may be indicated on the product container labeling.
Optimal Storage: 8 °C to 21 °C. Storage below 8 °C or greater than 28 °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
This product has a shelf life of 12 months in original containers.
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