CIM 1000 is a high-performance, two-component coating and lining system designed for seamless, durable waterproofing in a wide range of construction applications. As a cold-applied, asphalt-extended polyurethane membrane, it combines the water impermeability of asphalt with the flexibility of urethane to create a long-lasting, resilient solution. This article provides a detailed overview of CIM 1000’s technical data, application instructions, and best practices, focusing on critical aspects such as curing times, substrate preparation, and methods for working in cold weather environments. The information is derived exclusively from official documentation and technical guidelines provided by the manufacturer and associated resources.
Overview of CIM 1000
CIM 1000 is widely used in construction for waterproofing concrete, metal, wood, and other substrates. It forms a tough, elastomeric membrane that is impervious to water and most aqueous chemicals, making it suitable for tank linings, pond linings, parking decks, and containment areas. The material adheres well to multiple surfaces and can bridge cracks due to its flexible and elastic nature. It is also UV stable and offers excellent abrasion resistance, making it ideal for environments with high wear and exposure.
The system is UL fire rated and complies with stringent VOC regulations, making it an environmentally sound option for construction professionals. CIM 1000 is available in multiple application guidelines, including specific instructions for use on asphalt, concrete, metal, wood, and in confined spaces or cold weather conditions. These guidelines are essential for ensuring optimal performance and longevity of the material.
Technical Data and Performance
CIM 1000 is formulated as a two-component polyurethane system that is liquid-applied and cures to form a continuous, seamless membrane. The chemical resistance of CIM 1000 ensures it is suitable for environments where exposure to water and chemicals is a concern. It is tested and certified under ANSI 118.10-199, a standard for load-bearing, bonded, waterproof membranes used in tile and stone installations. This certification confirms its durability and suitability for long-term use.
The coverage and thickness of CIM 1000 depend on the desired application. A coverage chart provided by the manufacturer outlines theoretical dry and wet thicknesses in mils, along with coverage rates in gallons or square feet per gallon for thicknesses ranging from 20 to 125 mils. These calculations are essential for estimating material requirements and ensuring that the application meets the specified design criteria.
Application Methods and Instructions
IG-01: Application to Asphalt
CIM 1000 can be applied directly to asphalt surfaces without the need for a primer in many cases. The material adheres well to asphalt and forms a durable, flexible membrane. However, proper surface preparation is essential. The surface must be clean, dry, and free of debris to ensure good adhesion. In some instances, it may be necessary to apply a primer to enhance bonding, especially if the asphalt surface is porous or uneven.
IG-02: Application to Concrete
When applying CIM 1000 to concrete, it is important to test for surface moisture and vapor transmission. CIM 1000 can be applied directly to concrete in certain conditions, but for porous substrates, the use of an EMT epoxy primer is recommended. This primer helps mitigate the risk of delamination and outgassing caused by surface moisture. The concrete surface should have a moisture content below 5% and vapor transmission less than 5 lbs per 1000 sq ft over 24 hours.
IG-03: Application to Metal
CIM 1000 adheres well to metal surfaces such as steel and other metals. Surface preparation is critical for metal substrates. The metal must be clean, free of rust, and properly primed if necessary. In some cases, a primer may be required to ensure good adhesion and prevent corrosion. The application process is similar to that of concrete and asphalt, with the material being applied in multiple coats to achieve the desired thickness.
IG-04: Application to Wood
Wood surfaces can also be coated with CIM 1000, but special attention must be given to surface preparation. The wood should be dry, stable, and free from any contaminants that could affect adhesion. In some cases, a primer may be necessary to ensure a strong bond between the material and the wood. The application process is similar to other substrates, with the material being applied in multiple layers to achieve the desired coverage and thickness.
IG-07: Topcoats
Topcoats may be applied to CIM 1000 to enhance its durability and appearance. These coatings are typically used in areas where additional protection is required, such as in high-traffic zones or areas exposed to UV radiation. The topcoats should be compatible with CIM 1000 and applied according to the manufacturer’s instructions. The application of topcoats should be done after the base coat has fully cured to ensure proper adhesion and performance.
IG-08: Mixing Premix and Activator
CIM 1000 is a two-component system that requires mixing the premix and activator before application. The mixing process is critical to the performance of the material. The components should be mixed in the correct ratio, typically specified by the manufacturer. The mixture should be thoroughly blended to ensure a uniform consistency. Once mixed, the material has a limited pot life, and it must be applied within the specified time frame to avoid degradation of the material.
IG-09: Application in Confined Spaces
Applying CIM 1000 in confined spaces requires special precautions to ensure the safety of the applicators and the quality of the application. The area should be well-ventilated to prevent the accumulation of volatile organic compounds (VOCs) during the mixing and application process. The material should be applied in thin, even coats to prevent sagging and ensure proper curing. In some cases, it may be necessary to use a primer to enhance adhesion and reduce the risk of delamination.
IG-10: Decontamination – Potable, Fish Tank
CIM 1000 is suitable for use in potable water and fish tank applications. However, proper decontamination procedures must be followed to ensure the safety and purity of the water. The material should be allowed to cure fully before it is used in contact with water. Any residual solvent or uncured material must be removed to prevent contamination. The decontamination process should be performed according to the manufacturer’s guidelines to ensure compliance with regulatory standards.
IG-11: Application in Cold Weather
Applying CIM 1000 in cold weather requires special considerations due to the slower cure times and potential for surface moisture. The material can be applied at temperatures as low as -20 °F, but the curing process will be significantly slower at these temperatures. At 50 °F or below, it is not uncommon for the material to remain tack-free for 4 to 8 hours. To mitigate the effects of cold weather, it is recommended to use a heat source to raise the substrate temperature. However, only electrical or indirect heat sources should be used to avoid introducing moisture or carbon residue into the environment.
For temperatures below 40 °F, the use of an EMT epoxy primer is not recommended. In such cases, CIM 1000 can be applied directly to the substrate, but additional testing for surface moisture and vapor transmission is necessary to ensure proper adhesion and performance. If a heat source is used, it should be turned off several hours before application to allow the substrate temperature to begin declining. This helps prevent outgassing and delamination caused by temperature fluctuations.
IG-12: Spray Application
CIM 1000 can also be applied using a spray application method, which is suitable for large or complex surfaces. The spray application requires specialized equipment and trained applicators to ensure even coverage and proper thickness. The material should be applied in multiple passes to build up the desired thickness without sagging or dripping. The spray application method is particularly useful for areas with multiple penetrations or irregular shapes.
Best Practices and Safety Considerations
When working with CIM 1000, it is essential to follow best practices and safety guidelines to ensure a successful application and the safety of the applicators. The work area should be well-ventilated to prevent the accumulation of VOCs during mixing and application. Personal protective equipment (PPE) such as gloves, goggles, and respirators should be worn to protect against skin and eye contact and inhalation of fumes.
Surface preparation is a critical step in the application process. The substrate must be clean, dry, and free from contaminants that could affect adhesion. In some cases, a primer may be required to enhance bonding and reduce the risk of delamination. The use of a primer is especially important for porous substrates such as concrete or wood.
Cure times should be monitored closely, especially in cold weather conditions. The material should be allowed to cure fully before any additional work is performed, such as the application of topcoats or the introduction of water in potable or fish tank applications. It is also important to monitor the temperature of the substrate during the application process to prevent outgassing and delamination caused by temperature fluctuations.
Conclusion
CIM 1000 is a versatile and high-performance waterproofing solution that is suitable for a wide range of construction applications. Its ability to form a durable, seamless membrane makes it ideal for use in environments where water resistance and flexibility are critical. The application process requires careful attention to surface preparation, mixing, and curing times, especially in cold weather conditions. By following the manufacturer’s guidelines and best practices, applicators can ensure a successful and long-lasting installation.