This product CAN NOT be sent via air freight or USPS.
RC MEDIUM is intented for medium to high grip surfaces. The MEDIUM adds a good amount of grip in the tire and is made to stay with the tire longer in a run without giving up. MEDIUM will not soften the tire it is just intended to add grip. This product works well on harder and softer compound tires and works the best when the track is dry but is lacking a little bit of grip.
Apply MEDIUM to the tire 5-10 minutes before a run and allow it to dry. If more grip is needed you can apply multiple coats to the tire just make sure the treatment is dry before you start your run.