# fiberglass edge showing

**URL:** <https://forum.clcboats.com/t/fiberglass-edge-showing/41126>\
**Category:** Builder's Forum\
**Created:** [July 5, 2013, 8:36pm UTC](https://forum.clcboats.com/t/fiberglass-edge-showing/41126 "2013-07-05T20:36:54Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![David\_Bartnowski](https://avatars.discourse-cdn.com/v4/letter/d/dec6dc/32.png) [@David\_Bartnowski](https://forum.clcboats.com/u/David_Bartnowski)\
**Post date:** [July 5, 2013, 8:36pm UTC](https://forum.clcboats.com/t/fiberglass-edge-showing/41126/1 "2013-07-05T20:36:54Z")

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I mated the deck to the hull on my Petrel. &nbsp;I decided to do another layer of glass on the hull and lapped it over the shear seam about two inches. &nbsp;I used masking tape as a guide on the deck, and ran the glass over the edge of the tape. &nbsp;When it was rubbery, before the cure, I knifed the glass along the tape. leaving a sharp edge. I don't think I cut into the glass underneath. &nbsp;I filled the weave with two coats, leaving it a bit back from the edge of the glass. &nbsp;I sanded the deck and sanded the raw edge, feathered to the deck, and layed on what I was hoping to be the last epoxy coat. &nbsp;The raw edge is visible, like a silver dotted line. &nbsp;I looks like the threads that run length wise in the glass where cut on an angle, and they refract the light. &nbsp;I sanded one section down again, by hand, really trying to blend the edge in, it looked good, but putting epoxy on, the edge shows again. &nbsp;Any ideas on how to get rid of the line?

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**Author:** ![Laszlo\_Morocz](https://avatars.discourse-cdn.com/v4/letter/l/c68b51/32.png) [@Laszlo\_Morocz](https://forum.clcboats.com/u/Laszlo_Morocz)\
**Post date:** [July 6, 2013, 7:12am UTC](https://forum.clcboats.com/t/fiberglass-edge-showing/41126/2 "2013-07-06T07:12:47Z")

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Dave,

That sounds like exactly what I've done on various boats, except that I only nicked one end of the glass with the razor to start it and tore the rest. I also did this before filling the weave. The result was a fuzzy ridge with randomly torn fibers that I then sanded with #220 paper to feather it.

Unfortunately, I think that your analysis is correct and you've managed to create a row of light pipes by binding the glass with the fill coats and then cutting rather than tearing. Short of completely removing the glass and trying again I can't think of a way to get rid of it and still have a bright finish. Maybe cover it up with an accent stripe (paint or vinyl)?

Good luck,

Laszlo

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