Is anybody using Automark 230 on box truck sides and trailers? I have a few jobs coming up that looks like maybe a good fit for this product. I asked my materials rep about it, and he says that they sell a lot of it for that purpose( flat side box trucks and trailers). I was wondering about real world use of it. Normally we do this in 3M ij180, but with people penny pinching now made me look at this product.