DL-45 Optically Clear
Primerless Adhesive
Description
High purity, optically
clear, soft Adhesive
Medium viscosity components can be blended in a convenient 1:1
ratio by weight or volume
Cures at room temperature in 24 hours
1.54 refractive index
Good UV Resistance
Good adhesion without the use of primer
Applications
For potting,
encapsulating, backfilling, and dampening applications requiring a
soft gel with optical clarity
Viscosity makes excellent for dispersing phosphors to obtain high
brightness white light
For applications requiring an operating temperature range of -40°C
to 200°C (-40°F to 392°F) or for soldering operations up to 260°C
(500°F) for 1 to 2 minutes
|
Property
|
Result |
Metric Conv |
ASTM |
NT-TM |
|
Uncured: |
|
|
|
|
|
Appearance |
Transparent |
- |
D2090 |
002 |
|
Viscosity(mixed) |
5,200 cP |
5,200 mPas |
- |
124 |
|
Work Time
(2x viscosity) |
80 minutes minimum |
- |
- |
124 |
|
Cured:
1 hour @ 70°C (158°F) |
|
|
|
|
|
Consistency |
Soft gel |
- |
|
|
|
Durometer,
Type 000 |
60 |
- |
D2240 |
006 |
|
Refractive
Index, 589 nm |
1.54 |
- |
D1218 |
018 |
|
Refractive
Index vs. Temperature, 589 nm |
-4.01 x 10-4/°C |
- |
D1218 |
018 |
|
Refractive
Index vs. Wavelength |
See chart
|
- |
- |
- |
|
Refractive
Index vs. Temperature |
See chart
|
- |
- |
- |
|
Cured: 24 hours at ambient temp. and humidity |
|
|
|
|
|
Durometer,
Type 000 |
55 |
- |
D2240 |
006 |
Instructions for Use
Thoroughly mix Part A with Part B in a 1:1 mix ratio by weight or
volume. Deviations from the 1:1 mix ratio may change cure rates.
Airless mixing, metering and dispensing equipment are recommended
for production processing.
Deaeration
Remove air entrapped during mixing by common vacuum deaeration
procedure, observing all applicable safety precautions. Slowly
apply vacuum, up to 28 inches Hg, to a container rated for use and
of volume at least four times that of material being deaerated.
Hold vacuum until presence of air is no longer evident.
Substrate Considerations
Cures in contact with most materials, exceptions include: butyl
and chlorinated rubber, some RTV silicones and unreacted residues
of curing agents used with a few types of plastics.
