Sika® Sigunit®-39 AF

Sigunit®-39 AF is especially formulated for use as setting accelerator in Portland cement based mortars and concrete. The product is particularly suitable for:

• Applications, where high initial strenght is needed and/or the shotcrete must play a supporting role in the early stage
• Dry-mix shotcrete for tunnel repairs, heading stabilization in tunneling, slope and trench stabilization, etc.

The benefits of Sigunit®-39 AF include, but are not limited to the following:

• Fast cement setting
• High early strenght development of shotcrete
• Lower rebound during application
• Improved bond of shotcrete to rock and concrete, making overhead spraying easier
• Minimum strenght loss in the accelerated concrete
• Sigunit®-39 AF is non corrosive to steel reinforcement
• Alkali-free, which eliminates any adverse effects from additional alkali in the spray dust
• No additional surface and ground water pollution by leached-out alkali

25 kg bags, 40 bags on a pallet = 1000 kg

White powder