TYPE Milbond Adhesive System

Milbond is an elastomeric-epoxy adhesive system for most glass to metal bonding applications. Milbond kits include an adequate quantity of spacer materials requested by the Military to maintain a bond layer thickness of .015" (.38mm). Milbond meets Military specification MIL-A-48611. Milbond can also be used in glass to glass, glass to plastic, metal to plastic, and metal to metal bonding.


Milbond Type I kit:

This kit contains 2 components of primer to paint substrates prior to application of adhesive and 2 components of adhesive, as well as sufficient quantity of spacer material.


Milbond Type II Kit:

This kit contains 2 components of adhesive and spacer material. This kit is used for substrates that will not be subjected to hostile environments and exhibit slightly less tensile shear strength than the Type I kit.

12800

Milbond Adhesive System; Type 1

400 gm Kit

12801

Milbond Adhesive System; Type 2

400 gm Kit

12802

Primer Only

 

13005

Additional Spacer Material

 

 

 

Approximate Curing Times

Mix Ratio Room Temperature 
25캜 (77캟)
Oven Temperature 
71캜 (160캟)
Epoxy 1:1 
(by weight)
7 days 3 hours
Primer 1:1 
(by volume)
1 hour (to touch)
24 hours (to dry)
Not Recommended

Specifications

Pot Life @ 25캜...............................Primer- 8 Hours 
                                              Epoxy- 30 Min. 
Coverage at .015inch (.38mm)..................1322 sq inches 
Tensile Shear @ 25캜..........................2,099 psi
  - After 60 min @ 70캜.......................992 psi
  - After 60 min @ -50캜......................2,561 psi
  - After 10 min @ 70캜(100% R.H.)............1,892 psi
    (test to failure at .015inch bond 
    layer thickness, all failures 
    cohesive, thinner bond layers yield 
    higher results.) 
Modulus of Elasticity @ 
   -50캜......................................85,900 psi
   +20캜......................................23,000 psi
   +70캜......................................1,070 psi
     (2inch long specimens were used, 
     5 specimens per test, and the 
     crosshead speed was .2"/min) 
Mechanical Shock @ 
   -40캜......................................250-400Gs
   +20캜......................................250-400Gs
   +70캜......................................250-400Gs
    (Shock pulses were approximately half 
     sinewave; 1.5 millisecond duration.)  
Linear Coefficient Of Expansion
   From (+20캜) - (-54캜).....................6.2x10-5/캜
   From (+20캜) - (+70캜).....................7.2x10-5/캜
    (2inch long (50mm) substrates were used, 
    2 substrates per test.) 
Outgassing TML (Total Mass Loss)..............0.98% 
CVCM (ASTM E595)..............................0.03%
   (Collected Volatile Condensable Material)  
Thermal Conductivity.........................300-350 x 10-5 cal/(sec)(sq.cm)(캜)(cm)
Specific Heat @ 
   40캜.......................................3 cal/(gm)(캜)
   60캜.......................................35 cal/(gm)(캜)
   80캜.......................................48 cal/(gm)(캜) 
Specific Gravities
   Primer Resin...............................1.21
   Primer Curing Agent........................0.82
   Adhesive Part "A" 34.......................1.769
   Adhesive Part "B" 34.......................0.944
   Mixed Adhesive (1:1 Ratio).................1.23 
Shelf Life at 22캜............................1 year