I've decided to cover an upcoming Yost build with vinyl, for toughness, workability, no finish coat, etc. I'm a bit confused by several sets of similar items. Tom primarily mentions use of 18 oz. Coverlight PVC. Checking his link for Mauritzon Inc., I find Coverlight in 16 oz. black, and 17 oz. white, yellow, red, green. But, no 18 oz. They don't specify that it is PVC or vinyl.

http://www.mauritzononline.com/coverlightr.html

At some point, Tom mentioned Coverene. This is 18 oz, and comes in 11 colors, and is designated by Mauritzon as vinyl coated fabric.

http://www.mauritzononline.com/coverene-vinyl-coated-fabrics.html

In his recent post, here, Dan Mouw linked to 14 oz. clear vinyl coated polyester, at Seattlefabrics.com.

http://www.seattlefabrics.com/vinyl.html#Clear%20Vinyl%20Laminated%20Polyester

The next item down on the page is 18 oz. VCP, in 7 colors. Is VCP (vinyl coated polyester) a type of PVC? I note they sell the HH-66 glue for it that Tom recommends, and I like the more user-friendly layout of the Seattlefabrics site.

So, I'm confused by Mauritzon, and intrigued by the two Seattlefabrics products. Can anyone comment on any or all, and/or alleviate my general confusion?

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As a side-note on my hatch seals, I did get a new roll of material from CLC, along with 2 other candidates. The original type material still had the best composition. I tried Nick's suggestion for affixing a razor blade and guides to trim its width, but this particularly compressible material would not cooperate; it may have related to the release paper being on the non-adhesive side of the material. Anyway, I was able to trim to width with scissors much better than my previous attempt, got it installed, and it's been leak free! The material has settled some in thickness, as many expected it would.