Rokryl Härter 330 is the reaction starter for all Rokryl resins. The dosage of the powder is easy and the hardener powder dissolves quickly. Safe and secure hardening is the benefit of this hardening system. Typical dosages are between 1-5%. The curing is fast and till – 10°C possible. For temperatures below -10°C ARCAN offers an additional accelerator with the name HydroCat 586.