Lord 3170
Epoxy Adhesive System for Cryogenic Applications
Description
Lord® 3170 is an equal-mix, two-component, modified epoxy
structural adhesive system. Lord 3170 is used to bond metals, glass,
reinforced plastics, ceramics and foam materials.
Features and Benefits
High Strength in Cold Environments -
provides
strength to applications where the
bonded assembly will be exposed to cryogenic temperatures.
Outgassing Requirements - suitable for aerospace service. Outgassing is minimal.
Surface Preparation
Remove all contamination and loose particles from
surfaces to be bonded. Promptly following the surface preparation,
complete the adhesive application and component assembly. Etch
aluminum alloys with a sodium
dichromate-sulfuric acid to obtain optimum mechanical strength.
Mixing
Mix equal parts of the two components, by volume,
until appearance is uniform. Mix on
more than 450 grams of combined adhesive at one time.
Application
Apply Lord 3170 adhesive at 50.8 - 76.2 microns (2 - 3
mils) onto both surfaces with a trowel or squeegee. When bonding foam
insulation materials to solid substrates, apply the mixed adhesive 254
microns (10 mils thick). Clamp assembly while adhesive is curing.
|
|
31 70A |
Lord 3170B |
Mixed |
|
Appearance |
Milky White |
Amber |
Light Amber |
|
Consistency |
Viscous Liquid |
Viscous Liquid |
N/A |
|
Viscosity, cP @ 24°C (75°F) |
50,000 + 20,000 |
130,000 + 40,000 |
N/A |
|
Weight |
9.5 lb/gal |
8.1 lb/gal |
N/A |
|
Flash Point |
>250°C (482° F) |
>250°C (482°F) |
N/A |
|
Mix Ratio by volume |
1.0 |
1.0 |
N/A |
|
Work Time |
N/A |
N/A |
2 hours @ 24°C (75°F) |
|
Gelation |
N/A |
N/A |
12 hours @ 24°C (75°F) |
|
Cured Density |
N/A |
N/A |
8.75 lb/gal |
|
Specific Gravity |
N/A |
N/A |
1.05 g/cc |
|
Toxicity |
N/A |
N/A |
Moderate |
|
Shelf Life |
1 year |
1 year |
N/A |
* Data is typical and not to be used for specifications purposes.
Technical Data Sheet for Lord 3170
For more information about Lord 3170 contact Bergdahl Associates, Inc.
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Date issued: 07/05
v2 7/04