I don't know. I've never been 100% convinced that Aeropoxy is exactly the same and Hysol. Every tube of Aeropoxy I've had has always been a different color (whiter) than every tube of Hysol I've had. BTW, I use Hysol for my stuff which is why I suggested Dreamworks after I corrected his misconception about the price of Aeropoxy. I've had plenty of tubes of Aeropoxy supplied to me for customer's planes, so I've probably seen as many tubes of one as the other. Maybe is just the lot they came from, but they've just never looked to be exactly the same stuff - although they've both seemed to work the same.

Bob