# Non-UV exposed areas, what to do?

**URL:** <https://forum.clcboats.com/t/non-uv-exposed-areas-what-to-do/72474>\
**Category:** Builder's Forum\
**Created:** [October 9, 2026, 1:28pm UTC](https://forum.clcboats.com/t/non-uv-exposed-areas-what-to-do/72474 "2026-10-09T13:28:28Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![YankeeDoodleDinghy](https://avatars.discourse-cdn.com/v4/letter/y/da6949/32.png) [@YankeeDoodleDinghy](https://forum.clcboats.com/u/YankeeDoodleDinghy)\
**Post date:** [October 9, 2026, 1:28pm UTC](https://forum.clcboats.com/t/non-uv-exposed-areas-what-to-do/72474/1 "2026-10-09T13:28:28Z")

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First time builder, varnisher, painter, and I’m building the Tenderly Dinghy.

I’m planning on varnishing all the UV-exposed interior surfaces. (Currently, everything is epoxy-coated.)

For any non-UV exposed areas, that will be difficult to see, it crossed my mind to paint with a light color: such as under the seats where the floats are fixed, under the floorboards, maybe the bilge-area (internal hull panels) under the floorboards, and maybe under the breast hook.

This seems more practical to do, but I wanted to ask the board what downside there is to painting these non-UV exposed areas, as opposed to varnishing them, or something else. Thanks!

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**Author:** ![Jon\_Ferguson](https://avatars.discourse-cdn.com/v4/letter/j/d9b06d/32.png) [@Jon\_Ferguson](https://forum.clcboats.com/u/Jon_Ferguson)\
**Post date:** [October 9, 2026, 3:29pm UTC](https://forum.clcboats.com/t/non-uv-exposed-areas-what-to-do/72474/2 "2026-10-09T15:29:03Z")

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As a rule I’ve treated every area as if it will get UV exposure. My flotation chambers for example have white primer in them. Even a perfectly dark space might get a little that you would not expect to be there.