Скачать или смотреть What are the Key features of an Epoxy Rollcoat?

In this video, I show you a feature I can really only describe as "variable viscosity". The importance will become clear as I describe it in the video.

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I'm out here in the lab today and I'm having a bit of a play and I realised that I'd spoken about a roll coat product a while ago, and I was trying to describe its properties, and it's a little bit hard to explain without showing you.

While I was out here in the lab, I thought I'd actually open up one of these kits and explain to you how this roll coat behaves, why it was formulated this way, and what that means in the field. And then it probably makes sense, some of the comments that I've made in the past when it comes to having a dedicated roll coat.

Let me swap the camera angle around and show you this product. Here I have the part A bucket of the product, and it's probably easiest to show you what I call variable viscosity by showing you in the un-tinted part A.

You can see that I stick the tongue depressor in it and it looks like a very thick product. But if you start to agitate it, you see that it drops it's viscosity.

And if you agitate it even more, like if I was drill mixing it, the viscosity would drop right down. The formulation principle there that I came up with all those years ago was I wanted something that was solvent-less, that I could squeegee out and wet back roll easily.

And then after I've finished with it, it wouldn't settle out, it wouldn't continue to flow. It would actually tend to hold its body and hold its shape.

Now, that's important if you are doing verticals, certainly because then it's got anti sag properties. But I also find with roll coats, it's important on how it behaves horizontally.

And that's to stop the colour separation issues that often happens when it comes to roll coats that are low viscosity and don't have enough body in them.

That was the formulation principles, and so you might understand now when I talk about a dedicated formulated roll coat, that they're the properties that I'm looking for. If you have any questions, of course, then just ask. And as always, I'm Resin Jack. Take care and keep smiling.