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Discussion Starter #1
The portlights on my Pearson 26 are hazy/ have hazy steaks in them. It doesn't appear to be on either exterior surface of the portlights but rather on the inside. I believe they are acrylic but am not sure. What is a good way to clean hazy portlights to make them clear again (or as clear as possible)?

So far I've read:
Use toothpaste (seriously)
Use automotive headlight cleaner
Use some sort of baking soda compound

Thoughts? What's the best way of going about this?
 

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I used a buffing wheel on a benchtop grinder with polishing-compound stick.

Came out okay but a bit uneven; took a lot of fussing.
 

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I have improved the look and clarity of our old acrylic portlights using Flitz metal/plastic polish. It doesn't last forever, so I suspect you aren't really "polishing" the plastic but smoothing out the haze by filling in small pores somehow. Anyway, it improves them enough to keep me from thinking I need to replace them, which is a good thing! :)
 

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I tried the Novus 3, 2, 1 system with mediocre results. Then for some reason I tried a razor blade in one of those handheld plastic holders. Pushing the blade at a low angle across the surface seemed to remove a layer of "dead" material, almost like a peeling sunburn.
Might be worth a shot.
 

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Then for some reason I tried a razor blade in one of those handheld plastic holders. Pushing the blade at a low angle across the surface seemed to remove a layer of "dead" material, almost like a peeling sunburn.
Might be worth a shot.
What were your results with the razor blade method? Was it even? Leftover scratches? Happy with the results?
 

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Discussion Starter #9
thanks all! I'm going to give one or all of these a try over the weekend and I'll let you know how it goes.
 

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Please report back, mine are looking really scruffy, and want some attention.
 

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Discussion Starter #11
Report:
Bought a little bottle of 3M plastic restorer from WM and it worked wonders. Took all of 1 min to do two windows. I'd suggest trying that first then f necessary resort to other options. Thanks for all the help!
 

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No more curry buffets
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I bought a bottle of Meguiar's PlastX plastic cleaner and polish yesterday. I applied it to my yucky old portlights with a microfibre rag, and rubbed it in well, on the inside and outside, then polished with a clean microfibre rag. For phase two, I reapplied it liberally to the outside again, and polished with a cotton wheel in my drill. They came out WAY better, but still could use some additional clarity. I have been thinking of removing them entirely and wetsanding them with a sequence of papers.

One au naturel



one after two phases of polish

 

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I'm a fan of the "privacy" that my ports provide and don't want such a clear window. I used the 3M rubbing compound (they were BAD), followed by Meguiars Clear Plastic Clean and Clear Plastic Polish. Amazing results.
 
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