Cold Joint Sealant

Description

Cold Joint Sealant

Filling expansion joints in concrete structures is a crucial step in the construction process. The materials used to fill these joints must be compatible with the structural behavior and should be able to prevent infiltration while maintaining their properties over the long term. Additionally, it is important to ensure that the material is durable and stable, without causing any health or environmental issues after application. One cost-effective and efficient option for this purpose is Cold Joint Sealant.

Cold Joint Sealant is a single-component material made from a combination of bitumen, special solvents, bitumen rubber, and chemical additives. It has a very high adhesive strength to various surfaces, such as asphalt, concrete, and brick. After the solvent evaporates, it turns into a solid and flexible material, making it ideal for filling expansion joints.

The asbestos-free fibers in this mastic prevent dripping and sagging during application, allowing it to be used in vertical joints. This sealant is suitable for structures with normal service conditions but is not recommended for use in environments exposed to chemical or petroleum-based substances. Economically, this product is more cost-effective compared to other joint fillers, and its application is simpler as it does not require heating to become fluid. Additionally, due to its non-contaminating nature for potable water, it can be used for sealing water transfer channels and water supply pipelines.

Properties and Effects Cold Joint Sealant

• High resistance to various weather conditions
• Excellent resistance to seawater and water pressure
• Easy to use as a single-component, ready-to-use product
• Can be applied in temperatures ranging from -5 to +70°C
• Exceptional adhesion to various materials such as wood, concrete, metal, and more
• Resistant to chlorine ions and destructive agents, without dripping or running during application
• High flexibility, ensuring it remains intact without cracking or detaching from the surface
• Good resistance to ultraviolet (UV) radiation
• Long-lasting durability with an extended service life

 

More products: concrete mastic

 

Application Cold Joint Sealant

• Ideal for sealing and filling expansion joints
• Suitable for filling expansion joints and cracks
• Perfect for sealing water transmission channels and water pipes
• Suitable for sealing culverts and agricultural channels
• Suitable for filling expansion joints in bridges and buildings
• Suitable for sealing concrete pipes and water transmission channels
• Ideal for horizontal sealing in both hot and cold climates
• Capable of sealing cracks and various asphalt surfaces
• Can be applied in both horizontal and vertical joints
• Suitable for mastic application in concrete flooring
• Ideal for vertical sealing in moderate and cold climates
• Suitable for filling and sealing elastomeric joints between buildings on rooftops

Instructions for using Cold Joint Sealant

To use cold-applied mastic, the surface must first be thoroughly cleaned and free from any contaminants such as grease, oil, and dust. If there is any contamination, use water pressure (water jet) or sandblasting to remove it. The surface should also be smooth, solid, and free from loose spots. If the surface is uneven or has weak areas, these should be repaired and properly prepared.

Cold-applied mastic can be applied to damp surfaces, but excessive water on the surface should be avoided. If applying the mastic to dry, rough, hot surfaces, it is recommended to apply a primer (a mixture of mastic with 50% water) beforehand.

Before opening the mastic container, place it in a hot water bath at around 70°C to soften the contents and make it pourable. Alternatively, indirect heat can be used to achieve the same effect.

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