Quick JB Weld question — when to sand?

sbaxter · Post by **sbaxter** » Sat Aug 30, 2014 10:49 am

I used JB Weld on a styrene model about eight hours ago, both for its iron grip and, at the same time, as a filler for a few seams. I smoothed it with wax paper, so it isn't very thick. I've noticed before that if it gets a full 24 hours to cure, it can be similar to sanding CA — hard as a rock and difficult to sand.

What's the ideal amount of time to wait to sand JB Weld, without waiting too long?

Qapla'

SSB

Kylwell · Post by **Kylwell** » Sat Aug 30, 2014 12:53 pm

Couldn't tell you. It's far, far harder than Aves. I've usually used a grinding wheel to sand down JB Weld. Any time before it's fully cured tends to make the paper or grinding wheel fill up quickly.

sbaxter · Post by **sbaxter** » Sat Aug 30, 2014 2:06 pm

Okay; thanks for the reply. I seem to have a knack for asking tough to answer questions.

I waited another couple of hours, and decided to go ahead and wet-sand. Seemed to work well and stay where I wanted it to be and yet sand away fairly easily where I didn't.

Qapla'

SSB