In LiteEarth landfill capping system, synthetic grass is merged with EPDM through high compression rollers and heat process for permanent welding of the components. The process uses a high quality industrial grade adhesive for lasting durability and security of the material.  The composite adhesive is a proven technology which has been used to secure materials for many years and in many industries.

Advanced composite adhesive features:

  • Proven synthetic elastomer hot melt technology for bonding EPDM and like substrates
  • Temperature performance range of -30°C to 82°C
  • Secures the grass into the composite for tuft bind at 95% coverage
  • Comparative testing to 60 years
  • Flash point 400°F

Currently, elastomers like EPDM (ethylene-propylene-deine monomer) are a popular matrix for thermal insulating materials, due to their high thermal constancy, low compactness, and low thermal conductivity.

Composite adhesives naturally consist of two elements—one is the matrix, and the other is the reinforcement. These two elements have unlike physical and chemical properties. However, when they are joined to form a single system, they convey properties that are different from their original one. This unique property of the composite adhesive makes them popular among the high-tech applications that require high strength and light weight.

At present, most commonly used composite adhesives have carbon fiber, Kevlar, glass fiber, and graphite as reinforced composites. This is because these substances can often bond easily. However, it is necessary to prepare the surface properly before applying it, in order to ensure a high quality bond. Most often the composites are coated with a gel coat or a mold-release agent, because they enhance their ability to bond better with the other materials. However, for this, a thorough degreasing of the surface is necessary to free it from any kind of contamination. Regularly, a mechanical abrasion of the composites is also carried out for improving the bond strength. However, you have to take necessary precautions if you are performing abrasion, because without proper care, it can expose or damage the reinforcing fiber while abrading. Also, a combination of these two techniques is jointly carried out in order to get an optimum result.

After preparing the surface, a uniform layer of composite adhesive is applied on the surface, and the parts are placed on one another. It is the most important part of the application, to fix the parts properly while the adhesive is setting up. It ensures good contact between the adhesive and the substrates.