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  Aerospace Adhesives --- Scotch-Weld EC 3520 B/A Structural Adhesive
     
 
 
A transparent, two part, room temperature curing structural adhesive with medium shear strength and excellent environmental resistance.
 
EC 3520 B/A bonds metal and many plastics.
 
Type Description
Colour Clear (B), Clear (A)
Kind of chemistry Epoxy
Viscosity 11,000 cps (B) 10,000 (A) (24°C / 75°F)
Brookfield viscometer RVF #7 sp. @ 20 rpm (24°C / 75°F)
Mix ratio 6 by wt. (B) : 5 by wt. (A), 1 by vol. (B) : 1 by vol. (A)
Pot life 90 mins (approx. time for a 100. gr quantity @ 24°C (75°F))
T-peel strength: 4 piw (7 N/cm)
Overlap shear strength 2500 psi (17.2 MPa) 24°C (75°F)
400 psi (2.8 MPa) 82°C (180°F)
Service temperature range -55°C to +120°C (-67°F to +248°F)
Handling strength Overnight
Bonding range 24 hours (24°C / 75°F)
Application methods Spatula, trowel, flow equipment

 
 
 
 
 
 

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