Hysol ® H4800          Email
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

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