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That sled looks SWEET all black...
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Buy a plain jane (unless you are being paid to advertise) four piece tunnel wrap from Jordan at graphicFX (dirt cheap in comparison because it's just 14mil outdoor vinyl with no printing) and some scrap vinyl to complete some smaller areas...get your suspension rails powder coated (this is a biggie and works too)..install Better Boards (of course) and BAM your sled will run and keep running as light as it can be in the field. (plus look cool)
We've been charging right around $85 for a set of suspension rails..but it's timed and depends on how much prep and grease cleanup. They must be perfectly clean or you get flaking. Everybody has a different technique from simple wipe/electrocute/apply then cook to extensive prep with a light finish media prep/phosphorous dip/priming agent/apply then cook. Also various techniques in temp control and product thickness control have radical durability and performance results.
Super hard and silky smooth is what we are hoping for!
A tunnel is not that significant cost wise from a material standpoint more the ability for your coater to handle the odd size depending on their preferred process.
I had a vanamberg tunnel that was powdercoated and it pealed everwhere and looked like crap after 1 season and when it does theres no way to repair it,,,, keep iit raw!!!!
Steve,
If you do it right it will last for years. Prep work is the key!
As far as the pain of doing it to your sled.... Just imagine taking every single piece off the sled and putting it all back together. Not one piece will stay together. It's alloooooot of work!!!
It's worth it! Do it!
Hardcoat Anodizing
Hardcoat anodize, commonly referred to as Type III anodizing, is formed by using an electrolytic solution of sulfuric acid at approximately 32° F and a current density of 23 to 37 Amps per square foot. The process will run for 20 to 120 minutes depending on the alloy used and desired coating thickness. This will produce a generally gray coating 10µm to 50µm thick with 50% buildup and 50% penetration into the aluminum.
Dang that 09-D9 in black looks good!!
Here’s my $0.02 on the topic of ice/coatings/aluminum rails and tunnels.
I think that Rob (F-Bomb) has a great low buck idea for the plain-Jane tunnel wrap... it will keep ice buildup down big time...and be cost effective without the need to disassemble the sled.
The people at Arctic FX ARE super easy to deal with.
Rob's workmanship and attention to detail are hard to find in todays products. Not many people out there take the time and research that Rob does in his work.
Keeping the sled from gaining weight, as Rob points out is as important as starting with a light sled. I've seen a 25 lb "block" of ice fall onto the track of 162" Edge chassis from a couple of hours of riding after we took a lunch break.
Powder coating the entire tunnel bulkhead assy is a PITA from a disassembly/re-assembly time frame. Powder coating the entire tunnel and bulkhead assy will also add multiple pounds to the weight of the sled but would stay lighter in use without the ice/snow buildup.
In addition, if you powder coat the tunnel on a RAW chassis, the powder coating will slow down the thermal transfer rate of the coolers in the tunnel by a fair amount. If you DO powder coat the tunnel, DO NOT powder coat the surface of the tunnel coolers inside the tunnel.
The most Hydrophobic coatings are the ones that will shed ice/snow build up the most. A hydrophobic coating is non porous and will fill in the porosity of the substrate metal.
The powder that Rob upgraded to last season seems to be top end in the durability and Hydrophobic properties. It does still scratch from normal use.
Robs Better-Boards are the best out there, especially the coated ones and have some of the most scratch resistant powder coating on them that I have ever seen.
This is where F-Bomb and I differ in opinions on coatings for Aluminum parts... and that is OK...
For the rails the best coating would be Type III anodizing also known as "Hard Coat" anodizing and is NOT to be confused with decretive Anodizing (Black or colored anodizing, Type II) including the black anodizing that Ice Age uses on their anodized rails (I have a couple of sets of these).
Type III would not need to be polished to be Highly hydrophobic.
The Type II anodizing on comercially available rails out there will scratch fairly easily. Type II DOES shed ice better if the surface is polished as it decreases the porosity of the surface and thus has more hydrophobic properties.... even better if the edges are radiused.
Type II anodizing is inherently porous, some processes less than others. Type II anodizing scratches fairly easily.
Even better at shedding ice are the “dry lube” Type III anodizing that has a small percentage of PTFE in suspension.
Type III Anodizing is VERY hard (65-70 on Rockwell C-scale) on the 7129 alloy of the Polaris rails and would resist scratching better than any powder coating or paint applied to the rails, hands down.
It adds essentially no weight to the part and improves its wear resistance.
You would have a VERY difficult time scratching the surface of a Type III anodized part in normal use.
For comparison a top notch knife blade, Very hard steel, has a Rockwell-C hardness of 55-62 (the higher the number the harder the surface).
Type III ano is used by the US Navy on Submarines to shed Ice in arctic exposure on aluminum and some Titanium alloys on the outside of the ship.
Type III anodizing is also used in Milataryfirearm manufacture, high-end cookware (not to be confused with the $50 "teflon" pans) and telecommunications as well as many industrial parts,
… And even the shafts (grey color) of all four of the Fox Floats on the Better Boards Demo sled… I doubt that you have seen ice stick to the shafts of the shocks. On the Floats, what I am calling the shafts is technically referred to in the Fox “jargon” as the body. The air chamber or “air sleeve” of the Fox floats is a high end Type II Black anodizing and some Ice Does build up on the air-sleeve ... but not the Type III anodizing of the "shaft"
There are plenty of industrial anodizing houses across the nation that will do Type III anodizing at a reasonable price. Probably in the neighborhood of $100 per pair.... if imaculately clean or brand new (and cleaned)
On the Rails, one of the "ice builders" is the fact that the cutouts on the rails and all the machined edges are square and actually quite sharp. Radius those edges.
On my rails, I will used a very small bearing guided 1/8” radius carbide router bit in a die grinder to radius all the “widows” and edges of the rails so that Ice has even less of a chance to build up.
If I were to replace the tunnel on MY sled... I would have he entire thing Type III anodized if I could find a metal finisher with a large enough tank. If I do the CR Tunnel sides.. they will be hardcoated for sure!!
Cut and paste here
This just gives you another opinion and another option.
This is my opinion based on my education/career in Mechanical engineering, materials application and years of experience in the industrial field (marine specialty and Yacht systems)
Here is a link to a a basic site describing Type III
http://elite-metalfinishing.com/anodizetype3.html
AND
http://www.teammetalfinishing.com/anodizing.html