Emteebee
New Member
For those interested in experiments with home-brew hot wax, here's some trial and error experiences. Yes, long story but thorough. This experiment is done on my commute Ebike, for that one I have the most results, since I only purchased an eMTB just weeks ago.
Reason why I started with home-brew is I just wanted to try, hobby, fun, I thought I could brew something just as good for less $$. Up front: sorry for talking in kilometers, I'm Dutch.
The short story for the inpatients is: (1.) I was wrong. (2.) The wax base is the most crucial part of the mix. (3.) That means the additives are less crucial, although that is hard to backup without proper research.
I went Amazon, bought paraffine candle wax (Materialix <0.5% oil), used 500gr. For additive I used Wolfblood Racing chain cycle additive of 60gr PTFE / WS2. In the end, this saved me around 10 EUR. Looking back, not really worth the saving. The mixture of wax and additive was pretty black, I could hardly see the chain when it was dipped in the wax. To me this indicated the level of WS2 was pretty high. (Comparing to Silca, this looks more transparent, I can see the chain). However, I have no specs on the Wolfblood Racing WS2 powder, it seems it's important to have nano-scale WS2 particles that are able to fill / match the nano-sized surface scratches of the chain metal. So maybe this made it less affective, who knows.
Used the home-brew on multiple bikes, with the most kms on a Kalkhoff Ebike to commute, 10sp Shimano Deore chain CN-LG500 and cassette HG500 11-34. I ride dry/wet roads, 40 kms per day, 14x stop and go, use almost all gears to ramp up, always on "power" mode (1 step away from max).
I noticed the chain not being fully clean on standard paraffine wax, it left a thin film of darkish residue and some flakes and crap building up between the cogs, although not as sticky as Squirt does. The paraffine also looks shiny, feels slippery, not sticky but one can tell there is some level of oil present.
After 2700 kms (1677 miles) I switched to Silca Hot wax. The grain looks and feels absolutely dry. Silca claims they use a blend of wax. And this is the power to my opinion. A good food-grade paraffine wax may be a good basis, but there's more to wax than just paraffine. Now, they are silent on what other wax types they use, but I suspect, based on the specs, they also use microcristaline wax. Google around, it's finer in its crystal structure, more resistant to puncture, more viscous. That's all guesswork but in the end, on the chain, it's very clean, my cassette and chain look "shiny", no remaining film, and build-up of wax leftovers.
Now the effects on wear. I started home-brew on 2 brand new chains and cassette. Unfortunately I started taking measurements only after I started using Silca, so I only know 2 things of my home-brew: 0% wear at 0kms, and the wear after 2700kms, so don't know how linear the wear progressed. I measure the wear every 150-200kms when I re-wax the chain with a KMC digital chain checker. Once a chain has 0,02mm more wear than the other, I swap chains until it shows 0,02 more wear than the other and so on. This way I get an even, gradual wear on the cassette over lifetime of the cassette. I do see a difference in wear/km so that's why I swap chain based on wear, not on miles.
2700 kms home-brew, and 2700 kms of Silca = 5400 kms in total (3355 miles).
Current state of the chains: 0.25% - 0.28% wear. Only half-way the wear limit !
But.
What is interesting: home-brew caused a wear from 0-2700 kms of 0.18% - 0.22%.
After that, on Silca, the next 2700 kms, the wear seemed to stabilize, or not increase at the same rate the home-brew did. See the wear data of both chains (k1 and k2) in the graph.
Conclusion: a good commercial hot wax outperforms my home-brew by far.
Let me be clear I have no interest in promoting any brand, go zerofrictioncycling and select a high performing hot wax of your choice. I choose Silca because of the performance based on ZFC independent testing.
*Image: chain wear of k1 and k2 chains. Mind left, home-brew measured wear is only 1 point of measure taken at 2700 kms total (k1 1400kms + k2 1300kms), and assuming 0km equals 0% wear.
Reason why I started with home-brew is I just wanted to try, hobby, fun, I thought I could brew something just as good for less $$. Up front: sorry for talking in kilometers, I'm Dutch.
The short story for the inpatients is: (1.) I was wrong. (2.) The wax base is the most crucial part of the mix. (3.) That means the additives are less crucial, although that is hard to backup without proper research.
I went Amazon, bought paraffine candle wax (Materialix <0.5% oil), used 500gr. For additive I used Wolfblood Racing chain cycle additive of 60gr PTFE / WS2. In the end, this saved me around 10 EUR. Looking back, not really worth the saving. The mixture of wax and additive was pretty black, I could hardly see the chain when it was dipped in the wax. To me this indicated the level of WS2 was pretty high. (Comparing to Silca, this looks more transparent, I can see the chain). However, I have no specs on the Wolfblood Racing WS2 powder, it seems it's important to have nano-scale WS2 particles that are able to fill / match the nano-sized surface scratches of the chain metal. So maybe this made it less affective, who knows.
Used the home-brew on multiple bikes, with the most kms on a Kalkhoff Ebike to commute, 10sp Shimano Deore chain CN-LG500 and cassette HG500 11-34. I ride dry/wet roads, 40 kms per day, 14x stop and go, use almost all gears to ramp up, always on "power" mode (1 step away from max).
I noticed the chain not being fully clean on standard paraffine wax, it left a thin film of darkish residue and some flakes and crap building up between the cogs, although not as sticky as Squirt does. The paraffine also looks shiny, feels slippery, not sticky but one can tell there is some level of oil present.
After 2700 kms (1677 miles) I switched to Silca Hot wax. The grain looks and feels absolutely dry. Silca claims they use a blend of wax. And this is the power to my opinion. A good food-grade paraffine wax may be a good basis, but there's more to wax than just paraffine. Now, they are silent on what other wax types they use, but I suspect, based on the specs, they also use microcristaline wax. Google around, it's finer in its crystal structure, more resistant to puncture, more viscous. That's all guesswork but in the end, on the chain, it's very clean, my cassette and chain look "shiny", no remaining film, and build-up of wax leftovers.
Now the effects on wear. I started home-brew on 2 brand new chains and cassette. Unfortunately I started taking measurements only after I started using Silca, so I only know 2 things of my home-brew: 0% wear at 0kms, and the wear after 2700kms, so don't know how linear the wear progressed. I measure the wear every 150-200kms when I re-wax the chain with a KMC digital chain checker. Once a chain has 0,02mm more wear than the other, I swap chains until it shows 0,02 more wear than the other and so on. This way I get an even, gradual wear on the cassette over lifetime of the cassette. I do see a difference in wear/km so that's why I swap chain based on wear, not on miles.
2700 kms home-brew, and 2700 kms of Silca = 5400 kms in total (3355 miles).
Current state of the chains: 0.25% - 0.28% wear. Only half-way the wear limit !
But.
What is interesting: home-brew caused a wear from 0-2700 kms of 0.18% - 0.22%.
After that, on Silca, the next 2700 kms, the wear seemed to stabilize, or not increase at the same rate the home-brew did. See the wear data of both chains (k1 and k2) in the graph.
Conclusion: a good commercial hot wax outperforms my home-brew by far.
Let me be clear I have no interest in promoting any brand, go zerofrictioncycling and select a high performing hot wax of your choice. I choose Silca because of the performance based on ZFC independent testing.
*Image: chain wear of k1 and k2 chains. Mind left, home-brew measured wear is only 1 point of measure taken at 2700 kms total (k1 1400kms + k2 1300kms), and assuming 0km equals 0% wear.