Description
Larsen Rapid Hardener & Frostproofer is a highly concentrated calcium chloride-based liquid admixture formulated to accelerate the setting and hardening of cementitious mortars and concretes, and to protect fresh mixes from frost damage during low-temperature working conditions.
By accelerating hydration of cement, it generates additional heat within the mix and significantly shortens the time to frost-resistant strength, allowing construction operations to continue safely in near-freezing conditions. An essential cold-weather working aid for bricklayers, plasterers and groundworkers.
Key Properties
- Calcium chloride-based accelerating admixture
- Accelerates setting and hardening of cement mortars and concrete
- Protects fresh mortar from frost damage at low temperatures
- Increases heat of hydration within the mix
- Suitable for bricklaying, plastering and concrete works
- Highly concentrated — low dosage rate
- Available in 5L and 25L
Note: Not suitable for use with sulphate-resistant cements or reinforced concrete structures. Refer to product data sheet for application rates and restrictions.