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-CL30 is a two component 2:1,colorless to slight yellowish, low viscosity, industrial grade, epoxy structural adhesive.
Once mixed, the two component epoxy cures at room temperature with minimal shrinkage to form an ultra clear adhesive bondline with excellent impact resistance.
The fully cured epoxy is resistant to a wide range of chemicals and solvents and has excellent dimensional stability over a wide temperature range.
Typical applications
Typical applications include bonding, small potting, staking and laminating applications where optical clarity and excellent structural, mechanical and electrical insulating properties are required. It bonds most materials including glass, optical fibers, ceramics, metals, and many rigid plastics.
Product characteristics:
|
Chemical Type (Resin/Hardener) |
Epoxy/Amine |
|
Appearance (Resin) |
colorless to slight yellowish |
|
Appearance (Hardener) |
colorless to slight yellowish |
|
Appearance (Mixture) |
colorless to slight yellowish |
|
Components |
Two component 2:1 (requires mixing) |
|
Viscosity |
Low |
|
Mix Ratio, (by volume) |
Resin : Hardener = 2 : 1 |
|
Mix Ratio, by weight |
Resin : Hardener = 100:46 |
|
Cure |
Room temperature cure after mixing |
|
Application |
Bonding and Potting |
TYPICAL PROPERTIES OF UNCURED MATERIAL
Resin:
Specific Gravity @ 25 °C: 1.1
Viscosity: 10,000 cps
Hardener:
Specific Gravity @ 25 °C: 1.0
Viscosity: 3,000 cps
Mixed Properties:
Specific Gravity @ 25 °C: 1.0
Viscosity: 10,000 cps
TYPICAL CURING PERFORMANCE
Tack Free Time @ 25 °C,(low humidity): 160 minutes
Working Time @ 25 °C: 30 minutes
Pot life @ 100°C, 250 grams: 90 to 150 seconds
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 5 days
Physical Properties:
|
Glass Transition Temperature (Tg) |
90°C |
|
Shore Hardness, Durometer D |
60 |
|
Volume shrinkage |
4.3% |
|
Elongation |
8% |
|
Tensile Strength |
8,000 psi |
Electrical Properties:
|
Dielectric Breakdown Strength |
20 kV/mm |
TYPICAL PERFORMANCE OF CURED MATERIAL -Adhesive Properties
|
Cured 5 days at 22°C Substrate |
Lap Shear Strength |
|
|
N/mm² |
psi |
|
|
Steel (grit blasted) |
20 |
3,100 |
|
Aluminum (anodized) |
21 |
3,070 |
|
Stainless steel |
14 |
1,900 |
|
Polycarbonate |
13 |
1,950 |
|
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)
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 |
160 |
150 |
|
Motor oil |
87 |
160 |
145 |
|
Unleaded gasoline |
87 |
125 |
110 |
|
Water/glycol 50/50 |
87 |
145 |
140 |
|
Salt fog |
23 |
75 |
90 |
|
95%RH |
38 |
110 |
120 |
|
Condensing Humidity |
49 |
95 |
95 |
|
water |
23 |
105 |
90 |
|
Acetone |
23 |
105 |
110 |
|
Isopropanol |
23 |
125 |
125 |
Cartridge Packing 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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