Calucem Instra 40 Calcium Aluminium Cement (25kg)

Calucem Instra 40 is a high-performance calcium aluminate cement (CAC) designed for fast-setting, high-strength construction applications. It delivers excellent early strength, superior durability, and outstanding resistance to chemicals, sulphates, and high temperatures — making it ideal for demanding repair works and industrial environments.

Key Features

• Fast setting

• High strength -- Reliable performance for structural and industrial applications.

• Excellent chemical and sulphate resistance -- Suitable for wastewater, marine, industrial, and aggressive environments.

• High-temperature resistance 

• Low permeability -- Reduces risk of water ingress and improves long-term durability.

• Chloride-free -- Safe for steel reinforcement and corrosion protection.

Recommended Usages

• Rapid concrete repairs (industrial floors, tanks, pipes, drains)

• High-temperature applications (kilns, furnaces, refractory mixes)

• Marine and wastewater structures exposed to aggressive chemicals

• Precast products requiring fast demoulding

• Grouting, anchoring, patching where early strength is needed

• Blending into mortars for enhanced durability and chemical resistance

Product Characteristics

• Type: Calcium Aluminate Cement (CAC)

• Colour: Grey

• Bag Size: 25kg

• Setting Time: Fast-setting (varies by mix and temperature)

Mixing & Application

• Mix with clean water to achieve desired mortar or concrete consistency.

• Do not mix with Portland Cement; blend with suitable aggregates only.

• Apply immediately after mixing due to fast setting behaviour.

• Follow proper curing practices to achieve optimum performance.

Storage

• Store in a dry, cool area.

• Keep bags sealed until use.

• Shelf life approximately 6–12 months in original packaging.