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Clear Coat of Aluminum Tread Plate, Bikes, & ATV accessories

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Q. I'm wondering what would be the best coating to use to clear coat a polished aluminum bike frame. I don't think anodization would work since the acid etch would probably affect the polished state of the metal so I'm wondering if a 2 stage AL paint would be best or if there is another recommendation to protect polished bare Aluminum. Thanks in advance.

Todd Morken
Bismarck, North Dakota
1999


A. You can try Clear Powder Coating

Nippinder Singh
New Delhi (INDIA)
1999


A. The best clear paint that I have come across is a single pack called Pelucid marketed by POR-15. It is crystal clear, non-yellowing, very hard & tough & resists everything.

Barry Taylor
- New Zealand
1999

Ed. update July 2023: 'Pelucid' is no longer a current product. A search for it on por15.com says it was replaced by their matte 2k clear coat [adv: Por-15 2k Clearcoat on eBay or Amazon] .
For raw metal you might also look into their Top Coat direct-to-metal [on eBay or Amazon].




Q. Hi,

I am looking for information on how color a bare Aluminium bike frame. After doing some research I have determined that painting Aluminium is not that simple and requires a number of steps to prep the metal.

If I leave the frame unpainted will it corrode over time? Also would applying some type of dye be an alternative to painting ?

Any suggestions would be greatly appreciated.

Regards,

Karl K [last name deleted for privacy by Editor]
- Montreal, QC
2001


A. Hi, Karl.

For aluminum to accept dye properly it must be anodized, which is a process that builds a honeycomb surface on the aluminum to absorb the dye, and which is subsequently sealed. A clearcoat alone is no match for anodizing or proper pretreatment and painting, but it may be "good enough" in corrosion resistance. Bare aluminum will usually become unsightly with volcanic corrosion pits and white blotches of discoloration. Good luck.

Regards,

Ted Mooney, finishing.com
Ted Mooney, P.E.
Striving to live Aloha
finishing.com - Pine Beach, New Jersey




Q. I am looking for a good strong clear coat for finishing aluminum atv racks. I would like a coat that would stand up to a little abuse if possible but mainly just to prevent the aluminum from corroding. Anyone have any suggestions?

Brian Glenn
ATV RACKS - Provo, Utah, USA
2005


A. As far as I understand your description, I think anodized aluminum will outperform and outlast an organic clearcoat in those conditions.

Ted Mooney, finishing.com
Ted Mooney, P.E.
Striving to live Aloha
finishing.com - Pine Beach, New Jersey
2005




Q. Need to maintain the shiny cosmetic appearance of aluminum diamond tread plate. Florida exposure causes aggressive tread plate corrosion. What can be applied post or prefabrication that is clear, will let the cosmetic appearance last and not be compromised by corrosion processes?

Bob Hathaway
Materials Engineer - Oshkosh, Wisconsin, USA
June 17, 2010


Q. I'm also looking for an answer to this question. I am installing highly polished aluminum diamond tread plate indoors and want it to maintain the mirror like finish. The pieces are 12"x12" tile so I could powder coat them, clear coat, or using a product I found on line that is a two-component, ceramic clearcoat/chemical treatment system designed for Original Equipment Manufacturers (OEM) to protect the substrate over which it is applied from corrosion and oxidation. It is called Evershield.

Whatever coating is suggested, I don't want it to be hazy or reduce the gloss. Is there such a thing, or would I be better off to leave them as is and just face the fact that I'll have to hand polish them every year or so?

Thanks,
Tom

Tom Smith
- seabrook, Texas USA
April 20, 2012


A. Hi.

If these plates will see foot traffic, I think you need a clear coating that is designed to resist it without scuffing. To me, that means polyurethane floor coating might be best. If you can afford it, stainless steel diamond plate would be much better than aluminum.

Regards,

Ted Mooney, finishing.com
Ted Mooney, P.E.
Striving to live Aloha
finishing.com - Pine Beach, New Jersey


Q. Hi Ted,

I didn't think of stainless, but I just did an on line search and it would be about $85 per sq. foot, which is out of my budget.

Yes, they will see very light floor traffic. Assuming there was no foot traffic, how long do you think the polyurethane coating would prevent oxidation?

Thanks,
Tom

Tom Smith [returning]
- Houston, Texas, USA


A. Hi Tom.

If there is no foot traffic, I think an automotive two-component clear coat might be better than a coating that is really optimized for wood floors. Many motorcycle enthusiasts seem to polish their aluminum and clearcoat it that way, which seems to be a more severe environment than yours. Good luck.

Regards,

Ted Mooney, finishing.com
Ted Mooney, P.E.
Striving to live Aloha
finishing.com - Pine Beach, New Jersey


thumbs up sign Thanks!!

Tom

Tom Smith [returning]
- Houston, Texas USA




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