Industries

AEROSPACE

Silicones now have a proven record of long term performance in the most demanding applications, offering the following general physical attributes .

1. Wide temperature range from -115 to 300ºC
2.Excellent electrical properties
3.Flexibility

4. UV resistance

5. Good chemical resistance

6. Resistance to humidity and water

7. Non-toxic and inert. Some major applications where Chemicals can be used Includes : Avionics - Displays, electronics, lighting , Aero engine - damping, bonding, sealing , Airframe - sealing, bonding.

AUTOMOTIVE

As automotive electronic applications continue to grow in number and complexity the demands made upon them for increased performance and reliability present many design challenges. By nature, the environmental conditions under which these units must work are very harsh. Temperatures under the

bonnet are increasing and geographical locations can also produce extremes in the other direction - these extreme thermal cycles induce stress and the possibility of component failure. To add to it there is mechanical stress as a direct result of vibration derived from the engine and road conditions. Chemical and oil attack are also common in and around the engine compartment, with water and humidity a constant threat. All these factors make component protection a high priority for any electronic design engineer working within the automotive industry. The sealing of the powertrain, water and fuel systems require strong, flexible, temperature and fuel resistant sealants. Thermally conductive silicone adhesives, encapsulants, gels, greases and gap fillers will perform this important task. Major applications include

1. Bonding and encapsulation of electric motors
2. Bonding and encapsulation of low-voltage batteries
3. Bonding and encapsulation of sensors and automotive electronics.

ELECTRICAL TRANSMISSION & DISTRIBUTION

Its range of Silicones can reliably outperform traditional ceramic or plastics materials in many applications and are typically used for wire and cable, high-voltage insulators, EMI shielding, breakers and disconnect switches, and surge arrestors. The numerous benefits they offer include:

1. Decreased weight
2. Decreased maintenance
3. Better hydrophobicity
4. Easier processing
5. Outstanding service life
6. Excellent tracking resistance
7. Superior erosion resistance

ELECTRONICS

The requirement for protection and safety of electronic components and electrical equipment is very important and many factors can influence their proper functionality when is use.Electronic ciruiits and components are not heavily used in various inductries like Automotive Traction and railway, Aviation and

aerospace , LED and lighting , Telecommunication , Measurement and control Household appliances. As systems become smaller and circuit densities become greater, technically superior products are in great demand . The applications are numerours and includes the following

1. Tough, high-clarity hardcoats for flat-panel displays
2.Low-ionic resins for finer-line-resolution photo resist solutions
3.Optical bonding materials for display applications
4. silicone gels for flexibility and repair opportunities
5. Thermally conductive materials for sealing, potting and encapsulation
6. Conformal coatings for the protection of PCBs from moisture
7. Sealants and potting compounds
8. High temperature sealants.
9. Die attach adhesives and encapsulants to lid seal adhesives and thermal interface materials.

HEALTH CARE

Medical devices place special demands on manufacturers regarding biocompatibility and processing. From ease of processability in manufacturing to enhanced comfort when in contact with the human body, silicones can meet the exacting demands of the healthcare & medical device industry.Even with small application quantities,

the adhesives must be joined precisely and quickly and must be resistant to sterilization methods. Silicone elastomers can meet healthcare’s rigorous challenges, and help medical manufacturers produce strong yet comfortable orthopedic devices, optically transparent yet flexible medical tubing, sterilization-tolerant yet durable dental and surgical devices.

RENEWABLE ENERGY

The share of renewable energies in the total energy demand will continue to increase in the coming years. The rotor blade manufacturers needs materials for mould making and blade production. Some applications include

1. Adhesives & sealants for repair and maintenance of wind turbines.
2. Adhesives for rotor blade bonding & the nacelle

3. Composite resins for wind energy

TRANSPORTATION

There are growing use of Formulated Chemicals in the Transportaion industry . With the growing need of Sophistication and better customer experience , these use cases will continue to grow . Some of the Applications are below .

1. Fire retardant structural adhesives for commercial transportation

2. Glass bonding for commerical transportation

3. Structural bonding of exterior and interior components for commerical transporation

4. Surface pretreatment for commercial transportation

LED & LIGHTING

Silicones have become widely used by LED design engineers to provide improved light performance, extended product life and environmental protection. CHT has several product groups to choose from including: optically clear encapsulants & thermally conductive encapsulants & adhesives. Applications include

1. Automotive vehicle lighting
2. Displays for sports and advertising
3. Back lighting for LCD screens
4. Signage
5. Aviation display lighting & airport lighting
6. Stage & theatre lighting
7. Rail & road signalling systems
8. Architectural & street lighting
9. Domestic lighting
10. Industrial machine lighting

COATINGS & INKS

Coatings Products includes additives, building blocks, coalescents, emulsifiers, and oxygenated solvents. There are many eco-efficient alternatives, with low toxicity, low odor, low volatile organic compounds (VOC) and higher renewable carbon content that delivers high performance in the production and application of paints,

varnishes, and adhesives. The major applications are -

1. Additives - Additives are responsible for wetting and stabilizing the pigment and polymer particles derived from the latex in the paint, as well as promoting water resistance, hardness, and shine.
2. Building Blocks - Building blocks are used to synthesize various types of polymers, improving the performance of paints and are capable of modifying attributes such as appearance, resistance, hardness, flexibility, and elasticity.
3. Coalescents - Coalescing agents ensure films form continuous and homogenous surfaces at many temperature and moisture conditions, as well as producing gloss and resisting dirt.
4. Emulsifiers - Emulsifiers provide excellent resistance to abrasion, offer control over particle size and minimize clots. They also generate latexes with greater stability and are compatible with other ingredients used in formulations of paints, coatings, adhesives, gloves, paper, and rugs.

ELECTROPATING

Electroplating is the process of coating a metal (or other material) with a thin layer of another metal by using electrolysis Thereby imparting certain properties to the base object. The main purpose of electroplating is to change or improve the surface properties of an object, for example to improve corrosion resistance,

aesthetic appearance, abrasion resistance, hardness, and other qualities.Electroplating is employed in various industries, including: automotive, jewelry, building and construction, electrical equipment, electronic and connectors, fashion industry, sanitary, packaging, etc. In addition to supporting the electroplating needs of these industries, we also support the foundry and casting industry needs in the Hot Dip Galvanizing process and by provision of Ferrous and Non-Ferrous Foundry materials.

MOULD MAKING

Silicone moulding rubber has many applications across a wide range of industries using various casting mediums. Silicone is chosen for its fine reproduction of detail, versatility and physical strength.

1. Casting materials & applications
2. Wax for candles and use in the lost wax process for bronze casting

3. Polyurethane for mirror and picture frames, architectural mouldings.

4. Polyester resin for giftware, figurines, sculptures.

5. Plaster for covings and cornices, film studios, figurines, fireplaces

6. Ceramics for earthenware pottery

7. Low melt alloys for toys, models

8. Glass for auto windscreens

9. Stone filled resins for replication of works of art, fireplaces

SURFACTANTS & CLEANING

In recent decades, synthetic surfactants have been used significantly in different fields of application. It is noteworthy that almost one half of these surfactants are used in domestic cleaning detergents. Synthetic surfactants have unique properties such as reduction of interracial tension and formation of micelles which is because of their structure

Surfactants are important in terms of environmental aspect because, after use, a major portion is disposed into wastewater and will eventually find a way into natural fresh waters. . Surfactants generally are classified into 4 categories: noncharged, amphoteric, cationic or anionic, according to the charge of their headgroup

1. Anionic surfactants One of the surfactants that mostly are used in laundry detergents is anionic surfactants because of their excellent work to remove dirt, clay, and some oily stains
2. Cationic surfactants One of the less used surfactants in laundry detergents is cationic surfactants due to their tendency to be adsorbed in high rates to – and not desorb from – the fabric and the soil because they have both negatively charged surfaces under normal conditions.
3. Amphoteric surfactant Amphoteric surfactant is defined as a surfactant possessing the anionic and cationic hydrophilic group in its structure. Non-ionic surfactants
Another group of surfactants which are mostly used in detergents are non-ionic surfactants.