EST-HP20 2:1 Off-white Epoxy Structural Adhesive
Two-component 2:1, toughened, medium viscosity, industrial grade, epoxy structural adhesive with a medium working life.
2:1 epoxy structural adhesive
Epoxy | Feature | color | Viscosity (cps) | Ratio | Working time (minute) | Fixture time (minute) | Curing time (Hour) |
EST-420DP | Toughened, flowable, fire retardant | Off-white, Black | 8,000-14,000 | 2:1 | 15-30 | 120 | 24 |
EST-460DP | Toughened, flowable, 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 |
TYPICAL PROPERTIES OF UNCURED MATERIAL
Resin:
Specific Gravity @ 25 °C: 1.0
Viscosity: 65,000 cps
Hardener:
Specific Gravity @ 25 °C: 1.1
Viscosity: 7,000 cps
Mixed Properties:
Specific Gravity @ 25 °C: 1.03
Viscosity: 65,000 cps
TYPICAL CURING PERFORMANCE
Working life, minutes: 20
Tack Free Time, minutes: 40
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 @ 23 °C for 5 days
Physical Properties:
Glass Transition Temperature (Tg) | 60°C |
Shore Hardness, Durometer D | 80 |
Elongation | 8% |
Tensile Strength | 5,700 psi |
Electrical Properties:
Dielectric Breakdown Strength | 20 kV/mm |
TYPICAL PERFORMANCE OF CURED MATERIAL -Adhesive Properties
Substrate | Lap Shear Strength | |
N/mm² | psi | |
Steel (grit blasted) | 22.6 | 3,270 |
Aluminum (anodized) | 14.7 | 2,530 |
Stainless steel | 22 | 3,190 |
Polycarbonate | 3.9 | 560 |
Nylon | 1.8 | 260 |
Wood (Pine) to Steel (grit blasted) | 11.3 | 1,600 |
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 @ 23°C
Chemical/Solvent Resistance
Aged under conditions indicated and tested @ 23 °C.
|
| % of the initial strength | |
Environment | °C | 500 hours | 1000 hours |
air | 87 | / | 137 |
Motor oil | 87 | 164 | 171 |
Unleaded gasoline | 87 | 108 | 82 |
Water/glycol 50/50 | 87 | 120 | 120 |
Salt fog | 23 | / | 70 |
95%RH | 38 | / | 100 |
Condensing Humidity | 49 | / | 90 |
water | 23 | / | 80 |
Acetone | 23 | 76 | 95 |
Isopropanol | 23 | 85 | 120 |
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.
General Description
SpiderAdhesive EST-HP20 is a two-component 2:1, Off-white, toughened, medium viscosity, industrial grade, epoxy structural adhesive with a medium working life.
Once mixed, the epoxy cures at room temperature to form a tough, off-white bondline which provides high peel resistance and high shear strengths.
The fully cured epoxy is resistant to a wide range of chemicals and solvents, and acts as an excellent electrical insulator.
Typical applications
Typical applications include general purpose industrial applications requiring moderate work life with high performance on a wide variety of plastics, metals, dry concrete or architectural materials.
Product characteristics:
Chemical Type | Epoxy |
Appearance (Resin) | Pale yellow liquid |
Appearance (Hardener) | yellow liquid |
Appearance (Mixture) | off-white |
Components | Two component 2:1 (requires mixing) |
Viscosity | Medium |
Mix Ratio, (by volume) | Resin : Hardener = 2 : 1 |
Mix Ratio, by weight | Resin : Hardener = 100 : 55 |
Cure | Room temperature cure after mixing |
Application | Bonding |
