During past decades the cold repair process had its large finger print in the repair methods for almost every part made of metal within the limits that product could handle.

The polymer & composite process is widely used to solve many problems and repair many equipment almost for every industry and every piece of equipment such as (pumps, valves, shafts, tanks, vessels, pipelines, transformers, etc...).

A polymer is a molecule that is made by linking many small units (monomers) together to form a large molecule. The polymer can be made of a single species (homopolymers) or of several different monomers (copolymers). Polymers occur naturally, (biopolymers) but are also made synthetically in large amounts. The term polymerization describes the chemical reactions that produce polymers by repeated combination of monomers to make long or large molecules. The different types of reaction are numerous and several distinctly different ways of categorizing the reactions are used.

Thermosetting plastics have primary bonds between molecular chains and held together by strong cross-links. They have a very rigid structure and have high tensile strength. They can withstand high temperatures and once hardened these cannot be reformed or recycled even with the application of heat. Cold repair polymers are based on Thermosetting polymers. 

If no energy source in the form of electricity for arc welding or oxy-acetylene gas for gas welding or brazing are available Cold Repair Compounds represent the alternative. The energy is built into the product and is released when base and activator is mixed together. It is a fast solution because the curing time for some of the products is down to a few minutes. Uncomplicated in use and no rigging up time makes it perfect for emergency repairs. Cold repair systems are a cold curing processes. There is no risk of heat or sparks causing ignition. Maximum temperature during polymerization can reach 70ºC (158ºF).

Base materials chemistry is normally of no concern because the bonding is mostly mechanical and not chemical.  Certain materials are simply not weldable because of chemistry or because the material is so corroded that there is nothing to weld on. Sometime welding method/ equipment/ consumable or operator knowledge is not available. Welding causes expansion and contraction resulting in distortion. If this is unacceptable, cold welding polymer can be the solution.

Polymer products can if necessary be injected trough small openings and holes. In many cases, polymer materials have better wear properties than weld overlays. Specifically, with regards to wear and tear in fluid flow environments. Large surfaces that are worn are also much faster overlaid with polymer materials than with weld bead overlays.

Polymer & Composite repairs are governed by the ISO 24817 and ASME PCC-2 International Standards which classify all intended repairs based on temperature/ pressure/ content service usage.  Also, by lifetime of up to 2 years, where the repair is required to survive until next shutdown, after which equipment shall be replaced.  Long lifetimes up to 20 years where the repair is required to reinstate equipment to its original design lifetime or to extend its life is outlined.

Ceramic Grade Epoxy can be enhanced further with the addition several grades of high-quality silicon carbide fillers or any other additives and they are often used in fluid flow environments (pump housings, impellers, valves and piping). Heavy damage will be rebuilt using a compound type ceramic grade followed by one or two layers of a fluid brush grade ceramic.

The repair process design depends on the data collected from client based on his operation condition and origin of part, and to ease it we have our own TECHNICAL SURVEY SHEET to be answered by client and respond back, which shall include (Thermal Loads, Mechanical Loads, Chemical Loads, Size of repair, Material Of part, Type of part, etc...) all data collected shall be studied to conclude the ROOT CAUSE OF FAILURE and best suited procedures for repair and protection.

Our cold-welding processes offer several advantages, including but not limited to:

1. The ability to repair metallic or non-metallic equipment without introducing thermal stresses.

2. This technology is suitable for applications in API-0 zones.

3. Leak sealing without shutdown or equipment cleaning and repairs that withstand high pressures and temperatures.

4. It restores parts original dimensions and thickness and enables cast repairs without recasting.

5. Others.

Our applications range from pipeline corrosion repair and leak sealing to the restoration of tanks, vessels, pumps, valves, and a wide range of rotating and static equipment.

Our Team is ready to cooperate with you to restore equipment to safe operation.