This Sika WinterMix Winter Working Frost Proofing Admix is an air entraining chloride-free liquid admixture for mortar and concrete. It is especially designed to act as an accelerator for work in sub-zero temperatures. This product eliminates the need for a separate frostproofer, and greatly improves the workability and freeze / thaw resistance in brick laying mortars.

Key Features

• Provides resistance to freeze / thaw cycling down to -8°C in both wet and dry mortar
• Replaces lime in mix, which reduces the risk of lime bloom and efflorescence
• Improves workability and accelerates set, even in cold weather
• Reduces bleeding and segregation in your mixes
• Makes tamping down and alignment easy
• Reduces shrinkage, cracking and crazing
• Increased frost resistance during setting
• Non-corrosive to embedded metal

Technical Information

• Recommended Dosage: Ambient temperatures down to -4°C: 1.25L per 25kg cement. Ambient temperatures below -8°C: 2.5L per 25kg cement
• Typical Reduction in Setting Times: 20 - 30% at 2.5L / 50kg cement
• Total Chloride Ion Content: <0.1% w/w
• Density: 1.08 - 1.14 g/cm³
• pH-Value: 8.5 - 10.5

Storage

• Store between +5°C and +25°C. Will reconstitute after freezing
• Shelf life: Up to 24 months

Approvals

• EN 934-3:2009 Air entraining / plasticising mixture