110% Racing RC Sweat shock O-ring lubricant
Following the RC Blood multi-functional grease RC 110% Racing have now introduced RC Sweat, a lubricant ideal to prevent the seals of shock absorbers from swelling. One of the biggest issues with shock absorbers is that the shock O-rings will swell up from the silicone shock oil, which will cause the shocks to bind up, completely taking away their smoothness and consistency. Using the RC Sweat lube during building and maintenance will not only keep the seals from swelling but the grease will also make for silky smooth shock action over a longer period of time.
Source: 110% Racing [race110.com]