What a fantastic video!!! In your opinion would fresh versus salt water benefits of a lower grit or higher when compared with salt water ? Thank you very much.
Hi Vlad, Acetone is a strong solvent that can remove small impurities and grease. It is very viscous and can travel up the fibres of bare carbon, therefore, promoting a breakdown of structure. I only use it to prepare a surface for a new finish. Best to just use warm water and detergent. Much faster.
Hey FoilLabs, great video, very informative! Do you have an example of the polyurethane paint you use for the tracer coat? I'm sure I can probably find something similar here in Aus to use.
I would not scrape off the bottom side of the rear edge with the blade. One thing is removing just a build up of a finish (lacquer), and another is shaving off actual carbon body. By removing the body you effectively changed camber of the profile at rear edge. Which would be ok if you consciously wanted to modify the profile to reduce, lets say, inductive drag. And you understood that the price will be - reduced lift together with it. It is like you decreased angle of flaps on airplane. So, removing imperfections is one thing and modifying the existing profile is another. I do not think the second was your target. Then why you've done it?
Your comment is just, however if the manufacturing process produces a surface that can be vastly improved then the process only adds to stability and fast flight. In some cases to true up a trailing edge has required taking small amounts of carbon off. The whole finished wing is then finished with Durapox
Thank you so much for sharing your experience and knowledge. It’s very helpful to improve my maintenance skills.
Happy to help!
What a fantastic video!!! In your opinion would fresh versus salt water benefits of a lower grit or higher when compared with salt water ? Thank you very much.
Hi as fresh water is denser there seems to be common approach to using courser grit. A colder water temperature also applies here.
@@foillabs1990 thank you very much.
What grit levels would you consider ? 1000-3000?
Hey FoilLabs, just wondering, one of my friends uses acetone to clean his foils for a smoother and faster ride, just wondering if that is a good idea?
Hi Vlad, Acetone is a strong solvent that can remove small impurities and grease. It is very viscous and can travel up the fibres of bare carbon, therefore, promoting a breakdown of structure. I only use it to prepare a surface for a new finish. Best to just use warm water and detergent. Much faster.
Hey FoilLabs, great video, very informative! Do you have an example of the polyurethane paint you use for the tracer coat? I'm sure I can probably find something similar here in Aus to use.
Hi I generally use a polyurethane thinners with a paint tint. Just wiping it on with a piece of cheesecloth.
I would not scrape off the bottom side of the rear edge with the blade.
One thing is removing just a build up of a finish (lacquer), and another is shaving off actual carbon body.
By removing the body you effectively changed camber of the profile at rear edge. Which would be ok if you consciously wanted to modify the profile to reduce, lets say, inductive drag. And you understood that the price will be - reduced lift together with it.
It is like you decreased angle of flaps on airplane.
So, removing imperfections is one thing and modifying the existing profile is another. I do not think the second was your target. Then why you've done it?
Your comment is just, however if the manufacturing process produces a surface that can be vastly improved then the process only adds to stability and fast flight. In some cases to true up a trailing edge has required taking small amounts of carbon off. The whole finished wing is then finished with Durapox