Frame material Benefits

[jc17777]

Hello everyone,

Some new frames came in today and I noticed a lot of them are made from Aluminium. I was just wondering what the benefits are of aluminum and how it compares to Titanium, Beta Titanium, Stainless Steel ect. If anyone could shed some light on this for me that would be great.

[PartTimer]

Very light. Strong. Hard to adjust. When it breaks, it seems to do so suddenly and thoroughly. The ones I worked with were difficult in terms of finish, it would come off fairly easily.

Good luck!

[RichR]

Very light. Strong. Hard to adjust. When it breaks, it seems to do so suddenly and thoroughly. The ones I worked with were difficult in terms of finish, it would come off fairly easily.

Good luck!

I've found the same to be true. Aluminum is very fickle. Use caution adjusting them they're easier to break and very easy to scratch. Learned both the hard way.

[Robert Martellaro]

Hello everyone,

Some new frames came in today and I noticed a lot of them are made from Aluminium. I was just wondering what the benefits are of aluminum and how it compares to Titanium, Beta Titanium, Stainless Steel ect. If anyone could shed some light on this for me that would be great.

I have a few Lightec styles that have aluminum fronts. Too soon to comment on durability of the finish. If anodized, the durability will depend on the thickness, with the $ frames having very little, and the $$$$ frames the most.

http://www.saf.com/anodizing/spray-test-results/

https://sites.google.com/site/framematerials/

Hope this helps,

Robert Martellaro

[Quince]

https://sites.google.com/site/framematerials/

This is a super neat link! Adding it to my 'Infinite Knowledge' folder

[jc17777]

I have a few Lightec styles that have aluminum fronts. Too soon to comment on durability of the finish. If anodized, the durability will depend on the thickness, with the $ frames having very little, and the $$$$ frames the most.

http://www.saf.com/anodizing/spray-test-results/

https://sites.google.com/site/framematerials/

Hope this helps,

Robert Martellaro

That website is great. Exactly what I was looking for. thank you

[mervinek]

https://sites.google.com/site/framematerials/
Robert Martellaro

Very informative! Thanks for the link!

[AngeHamm]

Such a cool website! I spent about an hour looking at it yesterday.

[Chris Ryser]

Did you know that uncoated Aluminum can also leach Bisphenol :

Assessment of Bisphenol A Released from Reusable Plastic, Aluminium and Stainless Steel Water Bottles

Bisphenol A(BPA) is a ubiquitous high volume industrial chemical that is an estrogen and an environmental endocrine disrupting chemical. Bisphenol A is used extensively in the production of consumer goods, polycarbonate plastics, epoxy resins, coating used to line metallic food and beverage cans, and other products.There is great concern regarding the possible harmful effects from exposures that result from BPA leaching into foods and beverages from packaging or storage containers. The objective of this study was to independently assess whether BPA contamination of water was occurring from different types of reusable drinking bottles marketed as alternatives to BPA-containing polycarbonate plastics. Using a sensitive and quantitative BPA-specific competitive enzyme-linked immunosorbent assay we evaluated whether BPA migrated into water stored in polycarbonate copolyester plastic bottles, and different lined or unlined metallic reusable water bottles. At room temperature the concentration of BPA migrating from polycarbonate bottles ranged from 0.2–0.3 mg/L. Under identical conditions BPA migration from aluminium bottles lined with epoxy-based resins was variable depending on manufacturer ranging from 0.08 to 1.9 mg/L.Boiling water significantly increased migration of BPA from the epoxy lined bottles. No detectable BPA contamination was observed in water stored in bottles made from Tritan™ copolyester plastic, uncoated stainless steel, or aluminium lined with EcoCare™. The results from this study demonstrate that when used according to manufactures’ recommendations reusable water bottles constructed from “BPA-free” alternative materials are suitable for consumption of beverages free of BPA contamination.

see all of it at: =============>
https://www.ncbi.nlm.nih.gov/pubmed/24720537

[Lelarep]

You read the article incorrectly. Note that it says: "Under identical conditions BPA migration from aluminium bottles lined with epoxy-based resins was variable depending on manufacturer ranging from 0.08 to 1.9 mg/L" Its literally impossible for unlined aluminum to leach BPA. BPA is not involved with the creation of aluminum products, and is not found in aluminum. Also, I think your link is off. It pulls up an article that is somewhat different from the paragraph you quoted. It goes to "Nephrotoxicity of bisphenol A (BPA)--an updated review."

[Beth641]

I dont know but only that its light weight and durable