Sika® Sigunit® SA 160

Blend of special inorganic materials

6 months from date of production if stored properly

• Must be stored at minimum +5°C and maximum +35°C (optimum temperature for storage and performance +20°C).
• Has to be kept in closed containers made of plastic, glass fiber or stainless steel.
• Must not be stored in normal steel containers.
• Storage in bulk tanks requires the use of agitation and / or circulation systems.
• After prolonged storage or transport we recommend to fully agitate it prior to use by mechanical stirring or re-circulation pumping.
• Please contact your local Sika technical representative prior to the use of any product that has been frozen.
• After prolonged storage, performance testing should always be carried out before use.

~1.43 kg/l (+25 °C)

> 200 mPa.s (Brookfield, + 20°C. Viscosity is dependent on degree of product agitation and temperature)

2.1 – 3.1

The following results should be taken as a performance guide only:

Initial set             Final set            24h Strength        Rating
2 min.                   6-8min.               18-20 MPa             Good
5 min.                   8-12 min.            12-15 MPa              Ok

>10 min.               > 15 min.             <10 MPa                Poor

When Sika® Sigunit® SA 160 is used for wet mix spraying, it is advised to have the w/c ratio < 0.45.

When targeting extremely high early strength, it is preferable to have w/c ratio  ≤ 0.40.

The lower w/c ratios provide faster setting, higher early strength, better durability and lower accelerator dosage; moreover, it allow for thicker layers to be applied overhead.

Sika® Sigunit® SA 160 is added at the nozzle. It is essential to have a constant and accurate dosage of accelerator into the concrete stream. To ensure quality sprayed concrete, follow the pump selection guidelines given below:

Works very well with:

• Mono pumps (stator & rotor pumps)

• Peristaltic pumps

Should not be used with:

• Piston pumps
• All pumps with ball and seat valves
• Pressure tanks
• Gear pumps

Do not use a filter on the suction hose as this causes obstructions.

Preferably draw the material off the bottom of the drum/container.

Sika® Sigunit® SA 160 is compatible with the following Sika products:

SikaPump®, Sika® ViscoCrete®, Sikament®, SikaFume®, SikaFiber®, SikaTard®
We recommend to perform trial mixes to establish the required performance when combining Sika® Sigunit® SA 160 with the above products or other admixtures. Please consult our Sika Technical Department.

3–10 % by weight of binder

Dosages by weight of binder depend on the mix design, raw materials, climatic conditions and concrete requirements.

Trial mixes must be performed to establish the exact dosage rate required.

The substrate should be clean and free from loose particles and preferably damp.

After the use of Sika® Sigunit® SA 160, the dosing pump and other parts of the system must be thoroughly cleaned with plenty of water. Failure to do so provokes blockages in the dosing system when next used.