Urethane Hardner

Can I use a different brand of urethane hardner to activate SPI Intercoat?
That would be a question for Barry. If I had to guess I would say you would probably be able to because adding activator doesn't actually "activate" the intercoat. Not in the way it does with clear. That being said I would not do it unless Barry says it's OK. Check with him on the Tech Line.
 
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