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 Hysol
® H4800
  Email |
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Methacrylate Adhesive |
Description
Dexter Hysol H4800 is a highly thixotropic, two component, room
temperature curing, 10:1 mix ratio methacrylate adhesive system. H4800
is formulated to provide a longer open time for manufacturers seeking
between 20-25 minutes to correctly fixture parts. This adhesive
forms resilient bonds and maintains its strength over a wide range of
temperatures. H4800 is suitable for bonding a variety of
substrates with a minimum of surface preparation.
Recommended Substrates: PVC, polycarbonate, acrylic, aluminum,
epoxy coated metal, ABS, stainless steel and FRP
Features
Non-sagging gaps filled to 1 inch
Superior
impact and peel strength
Little or no surface preparation
Offers
excellent tolerance to off-ratio mixing
Rapid room temperature cure100% reactive
Excellent
environmental resistance
Typical Cured Properties
Tensile Strength (psi)
3,400
– 3,600
ASTM
D 638
Tensile Elongation (%)
25
- 35
ASTM
D 638
Peel Strength (pli)
60
ASTM
D 3167
Tensile Lap Shear @ 77oF
4,500
– 4,700
ASTM
D 1002
Tensile Lap Shear @ 180oF
2,800
– 3,000
ASTM
D 1002
Shore D Hardness
75
– 80
Bondline Thickness
.005
– 1.00
Typical Uncured Properties
Part
A
Part
B
Mixed
Open Time@ 77oF
-
-
20
– 25 minutes
Fixture Time @ 180oF
-
-
45
– 55 minutes
Color
Cream
Yellow
Light
Yellow
Viscosity, cps
60,000
– 70,000
50,000
– 60,000
-
Brookfield HBT
Spdl
6 @ 10 rpm
Spdl 6
@ 10rpm
-
Specific Gravity
1.03
.951
.02
Ponds per gallon
8.58
8.83
8.60
Mix Ratio
By Weight
9.71
-
-
By Volume
10
1
-
Performance
Handling and Application
Mixing: It is highly recommended that either meter mix equipment
or cartridges with static mix nozzles be used to properly ratio and
dispense the adhesive. For hand mixing, combine Part A and Part B
in the correct ratio and mix thoroughly. Once mixed, H4800 should
achieve a uniform color. This is important! Heat buildup during
and after mixing is normal. To reduce the likelihood of exothermic
reaction or excessive heat buildup, mix less than 100 grams at a time.
Mixing smaller amounts will minimize heat buildup.
Applying: Bonding surfaces should be clean, dry, and free of
contamination. Extensive surface preparation is not required for
H4800, and good bonds can be formed on most substrates after a solvent
wipe. To assure maximum bond strength, surfaces must be mated
within the adhesive's open time. Use enough material to completely
fill the joint when parts are clamped.
Curing: Parts should remain undisturbed during the interval of
time between the material's open time and
fixture time. After the fixture time is achieved the material has
reached handling strength. Temperature below 55°F will slow the
cure; above 85°F will accelerate cure rate.
Clean Up: It is important to clean up excess adhesive from work
area and application equipment before it
hardens. Denatured alcohol and many common industrial solvents are
suitable for removing uncured adhesive. Hysol H4800 is flammable.
Keep containers tightly closed after use. Keep away from
heat, sparks, and open flames.
Storage
Hysol adhesives should be stored in a cool, dry place when not used for
a long period of time. The shelf life for H4800 is one year from date of
manufacture when stored at 40oF
and six months when stored at room temperature or 77oF.
Exposure above room temperature will reduce shelf life.
Packaging
100 gram clip packs490ml EPS cartridges
5 Gallon Pails
55 Gallon Drums
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DISCLAIMER: The
information supplied in this document is for guidance only and should
not be construed as a warranty. All implied warranties are
expressly disclaimed. Including without limitation any warranty of
merchantability and fitness for use: All users of the materials are
responsible for assuring that it is suitable for their needs,
environment and use. All data is subject to change as Dexter deems
appropriate.
Users should review the Material Safety Data Sheet (MSDS) and product
label for the material to determine possible health hazards, appropriate
engineering controls and precautions to be observed in using the
material. Copies of the MSDS and label are available upon request |
For
more information or to order contact the Glu Guru™ at 1-800-323-5158
or Email
mike@on-hand.com
|
The Glu
Guru™
Adhesive Tech Center
SOLUTIONS DAY!
