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Koster Silicate Mortar
 
2 COMPONENT SILICATE BASED MORTAR WITH HIGH CHEMICAL RESISTANCE
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DESCRIPTION
Silicate Mortar is special mortar made of silicates and because it is free of cement it has an excellent chemical resistance.

TECHNICAL DATA
Basis Powder component  
Cement free mixture of quartz and inorganic admixtures
Liquid Component 
Water based silicate solution
Max. grain size 
2.0 mm
pH value Liquid Component 
Approx. 11
Mixing ratio (powder : Liquid) 
4.8 : 1 (by weight)
Pot Life at 15° C 
45 minutes
Bonding Strength (after 5days) 
>2.0 N / mm²
Specific gravity (mixed) 
2.1 g/ cm³
Compressive Strength: (after 24 hr.) 
>15 N/mm²
(after 28 days) 
>45 N/mm²
Tensile Strength (after 24 hr) 
1.4 N/mm²
(after 28 days) 
11.0 N/mm²
Long term resistance against 
Salts, oils, greases, acids (down to pH 1)
 

FIELD OF APPLICATION
The Koster Silicate Mortar is suitable for protecting structures against aggressive acid attacks. Typical areas of applications are sewers, water treatment plants, waste water treatment plants, food stuff production where fruit acids are present.

SUBSTRATE
The surface has to be clean, sound and solid, free of oil and grease, laitance, paint form oil and other contaminants that might affect the bonding adversely such as epoxy, bitumen and other old coatings that may be on the substrate. The substrate should be pre-dampened. Smooth surfaces should be primed using the Silicate Slurry.

MIXING
Add the powder component to the liquid component and mix until a homogeneous mortar is obtained. Materials are supplied in correct mixing proportions (4,8 : 1, Powder: liquid by weight).

APPLICATION
Apply the mortar using a smooth trowel. The Silicate Mortar should be applied in a thickness of min 2 and maximum 5 mm. Continuos application (fresh in fresh) is ideal, meaning that waiting between layers/areas should be avoided.

PROTECTION
Protect fresh layers of Silicate Mortar for at least 24 hours before exposing it to moisture and (contaminated) water.

CONSUMPTION
App. 2.1 kg/mm / m2 . Min. 2.5 kg/m2.

CLEANING OF TOOLS
Immediately after use with water.

PACKAGING
24 kg PE lined bag (powder component) 5 kg can (liquid component)

STORAGE
Can be stored up to 12 months, when stored in a dry place away from sun light.

SAFETY PRECAUTIONS
The liquid component contains silicate and affects skin, eyes and the mucus membrane, therefore wear protective gloves and goggles at all times.

 
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