Hi Peter,

God love ya, I used MAS cold cure last winter while a friend used regular cure in 40-45 degree garage. Like the other guys say there is an amine blush to consider but as long as successive layers go on during the green stage no problem. For some reason I still liked using the regular cure more,,,less viscous maybe?......I had a stash of fast cure west systems that I used in areas where i was bonding wood and wanted it quick. But for glassing I liked the regular cure even though it took days to set. There is one small smudge on the bottom of my boat that no one but me knows is fly guts.

gloves,lots of gloves

all's well