Why an HPO5 and S-30 Mix?
HPO5 was the top layer for the Italian winners and a number of other top performers at the 2005 American Birkie. HPO5 is a fluorocarbon wax (available in powder or spray form) that adapts extremely well to changing conditions, like from cold to warmer snow, cold humid snow or a mix of dry and moist snow. It's fast, repels dirt and remains fast the entire race.
SOLDA S-30 is a great synthetic wax (base hardener) for very cold snow and is often used as a base for HPO5 when the overnight temperature is very low, (but is expected to warm up by race time and/or the snow's humidity or water content will increase).
The conclusion: The two waxes always compliment each other and they consistently work well together.
When your next race involves cold and medium cold snow and medium to low humidity (amongst the trickiest conditions to wax for), consider SOLDA HPO5 and S-30 Mix. Your great glide will be the envy of all!
Use the 50/50 mix for very cold snow that's warming up. -11 to +14°F (-25 to -10C); Humidity 25 to 80%
Use the 70/30 (70 HP05, 30 S-30) for cold snow that's warming up or cold humid snow. -4 to +21F (-20 to -6C); Humidity 35 to 90%