Weber Antifreeze | Mortar and Concrete Additive for Improved Freeze Resistance

Weber Antifreeze

Weber Antifreeze is a chloride-free specialty additive designed for use in mortar and concrete production under low-temperature conditions where there is a risk of frost. It accelerates the early strength development of mortar and concrete, enabling safer application and curing in cold weather.

Advantages

• Improves the freeze resistance of mortar and concrete
• Accelerates the achievement of critical early strength levels
• Chloride-free formulation that does not damage reinforcing steel
• Provides a controlled setting process in cold-weather conditions

These advantages make Weber Antifreeze a reliable solution for concrete and mortar applications carried out at low temperatures.

Areas of Use

• Applications performed during periods of light frost throughout the day
• Regions where there is a risk of freezing within the first 24 hours after application
• Conditions with the possibility of sudden temperature drops
• Applications requiring early formwork removal

Weber Antifreeze helps mortar and concrete achieve proper setting and strength development under these challenging conditions.

Application Conditions

• Ambient temperature and fresh concrete temperature: +5°C to +15°C
• Sand must be clean.
• Cement must be fresh and free from deterioration.
• Applications outside the recommended temperature range should be avoided.

Instructions for Use

1. Shake the product thoroughly before use.
2. Add Weber Antifreeze to clean mixing water and mix thoroughly.
3. The prepared additive solution should be introduced into the mortar or concrete at the final stage of the mixing process.
4. Follow standard mortar and concrete mixing procedures without altering the normal mixing sequence.

Recommended Dosage

• Average dosage: 2% of the cement weight
• Depending on site conditions, dosage may vary between 1% and 5%
• Recommended quantities should be adjusted according to local aggregates, cement type, and ambient temperature conditions.

Warnings and Recommendations

• Weber Antifreeze should always be added to the mixing water.
• Compatibility tests with local materials are recommended before large-scale use.
• Formwork should be protected from snow and ice, and temperatures should be maintained above freezing.
• If the product has frozen, it should be thawed in a warm environment before use and must never be exposed to direct flame or heat sources.

Storage and Shelf Life

• Keep the container tightly sealed when not in use.

Safety Precautions

• Wear appropriate gloves, protective goggles, and a dust mask during handling and application.
• Avoid contact with eyes and skin.
• In case of eye contact, rinse thoroughly with plenty of water and seek medical advice.
• Refer to the Safety Data Sheet (SDS) for detailed health and safety information.

Frequently Asked Questions

What is Weber Antifreeze used for?

It accelerates strength development in mortar and concrete during cold-weather applications and improves resistance to freezing conditions.

Does the product damage reinforcing steel?

No. Weber Antifreeze is chloride-free and does not harm steel reinforcement.

At what temperatures can it be used?

Both the ambient temperature and the fresh concrete temperature should be between +5°C and +15°C.

What is the recommended dosage?

The standard dosage is 2% of the cement weight, although it may vary between 1% and 5% depending on conditions.

Can a frozen product still be used?

Yes. However, it must first be thawed in a warm environment and should never be exposed directly to fire or open flames.