Cold Run Mastic
Description
Cold Run Mastic
Cold-run bitumen mastic is a type of bitumen rubber mastic, bitumen and special solvents, special chemical additives and emulsion resins, and has a great adhesion strength to a variety of substrate surfaces such as: concrete, brick, asphalt and … It does.
Properties and Effects
- Ability to run at temperatures of -5 to +70°C
- High adhesion to a variety of materials such as wood, concrete, metal, etc.
- High durability against different weather conditions
Application
- Filling expansion seams and Junes
- Suitable for horizontal sealing in cold and tropical regions
- Suitable for vertical sealing in temperate and cold areas
Technical specification table:
| Appearance | Elastic Paste |
| color | black |
| Weight Specific | gr/cm3 1/3 |
| Runtime temperature | 10 to 40 °C |
| Ion chlorine | Doesn’t have |
| Initial tightening | 4hours |
| Final tightening | 4weeks |
Package:
10kg box
Product Description – Sealant Mastic
In the stages of construction, filling the expansion joints of concrete structures is considered one of the most important stages. These materials must be compatible with the structural reaction and be impermeable and maintain their properties for a long time, and also be reliable in terms of health and environmental problems after implementation. One of the low-cost and simple sealants is cold-applied bitumen mastic, which is a type of single-component mastic and its ingredients include bitumen rubber, bitumen and special solvents and special chemical additives and emulsion resins. It has high adhesion strength and can be applied to concrete, brick, asphalt, etc. After being applied to the joint, this product becomes solid and completely flexible. This product is not suitable for use in structures that are in the vicinity of or exposed to chemical solvents and petroleum products. This mastic has simpler conditions in terms of application than (hot-applied bitumen mastic) because there is no need to apply heat and turn it into a fluid to apply this product, and it is completely economical. This product is also capable of operating at temperatures from -5 to +70 degrees Celsius.
Cold-performance sealants refer to a type of material used in construction and maintenance applications. In the field of insulation, these products play an important role in maintaining thermal comfort. During the winter, they act as a barrier to prevent cold and heat, potentially saving on heating costs. Conversely, they also help keep spaces cool during hot summer days. Ultimately, choosing the right product can significantly impact the comfort and energy efficiency of a building.
Cold-applied mastic packaging
What is the packaging of cold-running mastic?
20 kg bucket
Cold application mastic consumption rate
How much cold applied bitumen sealant should be used?
After determining the volume of the application site and taking into account the specific gravity, equivalent to 1/3 gr/cm3, the exact amount of consumption will be determined.
Cold applied mastic storage conditions
What is the correct way to maintain cold-sealing mastic?
Duration: One year in original packaging.
Conditions: Away from cold and frost, heat and direct and prolonged sunlight.
Best storage temperature: +10 to +30 degrees
Properties and effects of cold applied mastic
What are the properties and effects of cold applied bitumen sealant?
- High adhesion to various materials such as wood, concrete, metal, etc.
- High resistance to various weather conditions
- Good resistance to seawater and water pressures
- Ability to operate at temperatures from -5 to +70 degrees Celsius
- Resistance to chlorine ions and destructive ions
- No spillage or spillage during operation
- Ease of implementation
- Single-component, ready-to-use product
Method of using cold applied mastic
How to use cold applied mastic?
- The surface under the work must be clean and free of any contamination such as grease, oil, and dust.
- If there is contamination, remove it by applying water pressure (water jet) or sandblasting.
- Make sure that the surface to be applied must be hard and smooth, without loose spots. If it is not smooth and there is porosity or loose spots, repair and prepare the substrate.
- Cold applied bitumen mastic can be applied to wet surfaces, but there should not be too much water on the surface.
- If cold applied bitumen sealant is applied to hot, very dry and rough surfaces, it is necessary to apply a layer of primer (combination of the same product with 50% water) to the surface.
- Before opening the package of cold applied bitumen mastic, place it in a water bath at a temperature of about 70 degrees until the contents of the container become soft and pourable. This condition can also be achieved by applying indirect heat to the product.
- Apply the product into the joint by pouring, injecting, or using a trowel and spoon.
- It is recommended to use backing rod or hemp strips in situations where water pressure is high.
- It is recommended that cold applied bitumen mastic be applied in two layers. The second layer should be applied when the first layer has reached the desired setting.
- It is recommended to sand the surface of the first layer before applying the second layer to create a better mechanical bond. Sanding should be done before the first layer dries and about 3 to 4 hours after application, while the surface is still tacky.
Table of physical and chemical properties of cold applied mastic
What are the physical and chemical characteristics of Sardajra mastic?
| Title | Feature |
| Mode | Elastic dough |
| Color | Black |
| Specific gravity | 3/1gr/cm3 |
| Standard | ASTM C1330 – C1193 |
| Chlorine ion | No |
| Initial hardening | 4 hours |
| Final hardening | 4 weeks |
| Runtime temperature | +10˚ to +40˚ |
Application of cold applied mastic
What are the uses of cold applied bitumen sealant?
- Sealing of all types of concrete pipes and water transmission channels
- Filling expansion joints and gaps
- Suitable for sealing water transmission channels and water supply pipes.
- Suitable for sealing culverts and agricultural canals
- Suitable for sealing and filling jars
- Suitable for masticating concrete floors.
- Suitable for filling expansion joints of bridges and buildings.
- Suitable for filling elastomeric seals and blockages between two buildings on roofs.
- Ability to seal and crack asphalt and various surfaces
- Can be used in horizontal and vertical seams
- Suitable for horizontal sealing in cold and hot regions
- Suitable for vertical sealing in temperate and cold regions
Mechanism of action of cold applied mastic
What is the mechanism of action of cold applied bitumen sealant?
Cold applied bitumen mastic is formulated and produced from bitumen, emulsion resins and special mineral powders and has high adhesion to all types of surfaces. After application, coating and drying, this sealant creates a hard yet flexible layer that has both the sealing and adhesion properties of bitumen and the properties of emulsion resins. Due to the presence of special compounds in the formulation of cold applied bitumen mastic, it is very soft and malleable during application and can be easily poured or injected into the desired sections.
Cold-applied mastic safety conditions
What are the safety conditions when using cold-applied mastic?
- Wash implements immediately after use.
- This product is not a toxic or environmentally hazardous substance.
- This substance should never be swallowed or come into contact with the eyes.
- Wear goggles, gloves and work clothes when performing.
- If swallowed, seek medical attention immediately.
- This material is not flammable.
Cold-applied mastic standard
According to which standards is cold-applied mastic produced?
Standard C1193 – ASTM C1330
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