Bandage powder

This type of Sahand Shimi special jointing powder is used for jointing tiles and ceramics on the floors and walls of dry and humid environments such as rooms, halls, bathrooms, swimming pools, etc. This product is quick to apply and easy to prepare, and is highly flexible and durable, and can be used for joints between tiles up to 6 mm wide and 10 mm deep.

This product can be used in indoor and outdoor spaces and for all types of granite, regular, glass and swimming pool tiles and ceramics. Other important features of this product include its variety of colors and appearance stability, flexibility and lack of shrinkage in the long term.

To learn more about the types of Sahand Shimi banding powder, log in.

Water resistance

This Sahand Shimi product is a cement-based compound reinforced with polymer materials that has hydrophobic properties and significantly reduces water penetration.

However, the joints drawn using traditional methods in constant contact with water in humid environments such as bathroom floors or internal surfaces of swimming pools did not have much resistance to water penetration, but Sahand Shimi’s hydrophobic jointing powders, with their engineered and powerful formulation, prevent water penetration and humidity does not affect their performance and durability.

To increase the resistance of this type of product to water penetration, it is necessary to use Sahand Shimi’s mortar reinforcement resin (latex) instead of water when preparing the jointing paste. Combining these two products together will seal the joints and prevent water from penetrating them.

Jointing Powder Applications

This product is a great option for the following applications:

Special for jointing all types of granite, regular, glass and pool tiles
Can be used in outdoor, indoor, dry and humid environments
Can be used in environments that are in constant contact with water (such as bathrooms, pools, saunas and jacuzzis).
In environments that are exposed to thermal shocks (such as underfloor heating and cooling systems, saunas and jacuzzis).

* In these applications, it is necessary to replace part of the water with Sahand Shimi mortar reinforcement resin (latex) to prepare the jointing powder.

This type of material has a high speed of preparation and application and saves a lot of money and time in tiling.

The polymer additives in the formulation of this Sahand Shimi product, in addition to creating hydrophobic properties, have reduced its shrinkage after drying and increased the adhesion, flexibility and resistance of tile joints to thermal shocks.

Application of jointing powders for facades

Facade brick joints are usually wider than tile joints. Given that this product can be applied to joints with a maximum width of 6 mm, it cannot be used for facade joints that are often wider than this.

It is noted that using Sahand Shimi jointing powder for joints with a width greater than 6 mm will lead to cracking.

Outdoor use

This product is used for jointing inside buildings as usual and in combination with water.

But for outdoor use, it is better to use Sahand Shimi mortar reinforcement resin (latex) to mix with jointing powders instead of using part of the water.
Adding this polymer resin to the jointing powder composition will greatly increase its adhesion strength, flexibility, water resistance, and ability to withstand different weather conditions, and will have a significant impact on the performance and stability of the joints.

Use in saunas and jacuzzis

The walls and floors of saunas and jacuzzis are periodically exposed to thermal shocks and continuous temperature changes. In these environments, it is absolutely necessary to use Sahand Shimi mortar reinforcement resin (latex) instead of using part of the water to mix with this product.
Adding this polymer resin to jointing powders will greatly increase its adhesion strength, flexibility, and water resistance, and prevent it from separating due to temperature stresses.

ترکیب پودر بندکشی سهندشیمی با دیگر محصولات بر حسب کاربرد

محل کاربرد	پودر بندکشی	رزین تقویت ملات (لاتکس)
بندکشی در فضای داخلی	⚫
بندکشی در فضای بیرونی	⚫	⚫
بندکشی در سونا و جکوزی	⚫	⚫

Calculating the required amount

The amount of Sahand Shimi jointing powder used depends greatly on the total area of ​​the work, the joint width, the joint depth, and the dimensions of the tiles. The amount of jointing powder is calculated according to the following formula:

(Tile length*Tile width) / ((Tile length+Tile width)*Joint width*Joint depth*1.56) = Consumption per square meter

(kg/m2)

By placing the dimensions of the tiles and joints in the above formula, the numbers can be used as follows:

میزان مصرف پودر بندکشی در هر متر مربع (kg)

عرض بند (mm)					ابعاد کاشی (cm)
۵	۴	۳	۲	۱	عرض کاشی	طول کاشی
۳/۹	۳/۱۲	۲/۳۴	۱/۵۶	۰/۷۸	۲	۲
۱/۰۵	۰/۸۴	۰/۶۳	۰/۴۲	۰/۲۱	۱۵	۱۵
۱/۴	۱/۱۲	۰/۸۴	۰/۵۶	۰/۲۸	۲۰	۲۰
۰/۵	۰/۴	۰/۳	۰/۲	۰/۱	۳۰	۳۰
۰/۳۵	۰/۲۸	۰/۲۱	۰/۱۴	۰/۰۷	۶۰	۳۰
۰/۳۵	۰/۲۸	۰/۲۱	۰/۱۴	۰/۰۷	۹۰	۳۰
۰/۴	۰/۳۲	۰/۲۴	۰/۱۶	۰/۰۸	۴۰	۴۰
۰/۳	۰/۲۴	۰/۱۸	۰/۱۲	۰/۰۶	۶۰	۶۰
۰/۳	۰/۲۴	۰/۱۸	۰/۱۲	۰/۰۶	۸۰	۸۰
۰/۳	۰/۲۴	۰/۱۸	۰/۱۲	۰/۰۶	۱۲۰	۶۰
۰/۲	۰/۱۶	۰/۲۳	۰/۰۸	۰/۰۴	۲۴۰	۱۲۰

How to prepare

Mix each 4-kg bucket of Sahand Shimi jointing powder with about 1.5 liters of water using an electric mixer at low speed (3 to 1 weight ratio).

To do this, pour water into a container with a suitable capacity and slowly add the powder to the water while stirring.

Continue mixing until a uniform and homogeneous mortar is achieved. Then let it rest for 5 minutes and then mix again a little. Now the jointing powder is ready to use.

Surface conditions

It is recommended that the joints and gaps between the tiles where the jointing powder is applied are free of any dirt, dust, paint and grease. The presence of dirt on the surface of the joints prevents the jointing powder from sticking to it and the jointing paste from separating from the surface.

How to apply the jointing powder

The prepared jointing paste is applied to the joints using a jointing trowel. The surface of the tiles around the joints should be cleaned with a damp cloth or jointing cloth after the initial setting and before the jointing powder has completely dried. If traces of jointing powder remain on the surface of the tiles and surfaces that are not sensitive to acid, use Sahand Shimi Cement Cleaner Spray to clean them.

Application temperature and workability time

The best application temperature for this Sahand Shimi product is between 5 and 40 degrees Celsius. At lower temperatures, the drying time of the jointing paste will be longer.

The period of use of this product after mixing with water (workability time) depends on various factors such as ambient temperature and the volume of the prepared powder. In general, to create the best performance of the jointing powder, we recommend that you prepare only the quantities required for jointing for up to 30 minutes and then proceed to make a new mortar.

Setting time

The initial setting time of the jointing powder under standard conditions (temperature 25 degrees Celsius) is 24 hours and finally reaches its maximum strength after 28 days. This period depends greatly on various factors such as temperature, humidity, joint depth and application conditions and may be shorter or longer.

Expiration date and storage conditions

Sahand Shimi jointing powder can be used for up to one year if stored in its packaging and in a dry place away from moisture.