Magnolia Plastics Syntactic 99

Plastics for the Space Age Since 1957


Magnobond 99, Parts A & B
(Formerly called 97-163, A & B)

Tested to BMS 5-28, Type 18, Class II

DESCRIPTION

Magnobond 99, Parts A & B, is a two component epoxy syntactic potting compound designed for robotic application. Magnobond 99 meets or exceeds the requirements of BMS 5-28, Rev. V, Type 18, Class II.

PROPERTIES OF UNCURED MATERIAL
                               Part A       Part B       Mix
     Specific Gravity          0.63         1.05         0.68-0.69
     Viscosity                 Paste        3,000 cps    Paste
     Shelf Life                06 months    12 months
     Color                     Off-white    Black        Light Gray
     SPI Classification        4            4
     Flash Point               >200°F       >200°F
     Freight Class             1            2

MIXING INSTRUCTIONS
     Mix Ratio:                100:14 parts by weight, A:B
                               11.9:1 parts by volume, A:B

     Pot Life @ 77°F:          3-5 minutes (10 gram)

     Cure Schedule:            7 days @ 77°F or 5 hours @ 125°F
                               per BMS 5-28, Rev. V, Type 18, Class II

CURED PROPERTIES
     Shore Hardness, Room Temperature:          68-70D
     Peak Exotherm, 10 gram mix:                155-160°F

Cure Schedule:              7 Days @ 75°F  5 Hours @ 125°F

Property                                        Requirement
  Gel Time, min.                 3-5            3-4 max.

  Density, gms/cc              0.67 - 0.70      0.70 max. avg

  Compressive strength, psi    5680   5690      4,500 min. avg

  Compressive modulus,
      psi, X 105               4.10   3.85      2.0 min. avg.

  Tensile shear strength, psi  2200   2000      1,000 min. avg.

  Flammability, 12 sec. vertical
      Extinguishing Time,
        seconds                  3.00           15.0 max
      Burn length, inches        3.15            8.0 max
      Drip, Extinguishing Time,
        seconds                  No drip         5.0 max

  Fluid Immersion, % weight gain
      TT-S-735, Type III, Test Fluid
                                 -0.24           1.5 max. avg.
      Mil-H-5606 Hydraulic Fluid
                                  0.88           2.6 max. avg.
      Monsanto Low Density Aviation
        Hydraulic Test Fluid      1.16           5.0 max. avg.
      Distilled Water             0.54           2.5 max. avg.

  Extrudability, Part A
      60 psi                     52.50           40 gms/minute
      70 psi                     64.00           min.
      80 psi                     81.00

  Insert Strength(1)
      Pull-out, lbs.              450            250 min.
      Torque, inch-lbs.           70-75           60 min.

Potted Inserts
  Tab Lift-Off, minutes(2)        20-22          15-25 minutes

(1) Cure: 3 hours at 75°F
(2) 10 Grams A plus B mixed for two minutes in a 3 ounce cup.  Inserts
    potted as quickly as possible.  Above recorded from time insert was
    potted.

    All test specimens were prepared with Part A at 100°F



DANGER FIRST-AID -------------------------------- ------------------------- May cause severe irritation. Eyes - Immediately flush Do not get in eyes, on skin eyes with plenty of water or clothing. for at least 15 minutes. Do not inhale vapors. Get medical attention. Wear rubber gloves & aprons. Skin - Wash immediately Use with adequate ventilation. with soap and water. Wash thoroughly after handling. Clothing - Remove clothing For industrial use only. and wash before reuse. Keep container closed. Do not reuse this container.
Spec Sheet Dated: 03/11/93


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