The use of Natural epoxy curing agents for coating

The demand for curing agents is on the rise, as the need of a good pot life for chemicals increases. Usually they are used for hardening a certain material be using cross linking. Multiple types of these products are available for use. All these agents have their own different features.

These agents are used by several industries because of their many features.
Many companies from all over the world are providing different types of curing agents such as; Aromatic and Aliphatic Amine, Cycloalophatic Amines etc.

Phenalkamine: is another curing agent, which provides a fast cure. Because it is a good solvent, it is widely used in many fields like; for marine and offshore coatings, flooring, construction equipment, industrial railways, marine applications, and much more.

Some of its many features include:

Cure at low temperature – This is one of the most important features of this curing agent. It provides cure at low temperatures, which makes it a good option for using in marine applications etc.

Sometimes, it is also used for maintenance coating in some industry applications, that need cure at low temperatures, which is sometimes even lower than 0 degree Celsius, can use this product.

Low viscosity – Low viscosity is another specialty of this product, which makes it more compatible for several industries.

Fast cure –It is a good option for industries that need fast cure.

Moisture resistance – This product can also resist moisture and water. It makes it capable for coating for marine and offshore applications. That is why, they are also it is used for pipe and tank coatings.

Good compatibility – This product offers good compatibility with several materials.

Excellent adhesion – Excellent adhesion is another property of this curing agent.

Salt Water resistance – Feature of salt water resistance also increases its importance. This is the reason why they are used in marine and other instruments.

Low cost – Its low cost availability makes it a great option in many fields.

Chemical resistance –Its high chemical resistance makes it usable for many protective applications.

Color stability – Color stability is another feature of this agent.

It also provides good flexibility, surface tolerance and other properties. It gives high performance with good durability. They have a very good pot life.
Coating, done with this product, increases the life and productivity of various applications.

With this type of coating, products will last longer even in difficult conditions, like; low temperature, salt water, moisture etc.

They always provide a better cure for many different industries.

Different Types of Epoxy Resins and Their Characteristics!

Epoxy resins are been used just about everywhere, including our day-to-day life. The many qualities of epoxy resins like; adhesive properties and their resistance to chemicals or water make them very useful, in several industries.

In boat building, dentistry, fiber optics, and civil engineering, epoxies are used for commercial reasons. Yet, not many people know that epoxies are available in different types. Every kind has its own characteristics and qualities.

Here are the different types of epoxies and their characteristics-

     Liquid – This type of resin is mainly used for coating, laminating and potting. It has good adhesive properties with chemical resistance. Low viscosity makes it ideal for civil engineering, flooring, and tank linings. It is also used in electrical application due to its electrical properties. The Quality of the solvent and the chemical and water resistance makes it the perfect choice for marine applications. Some variants of this liquid type have also shown impact resistance and more flexibility.

     Solid – Solid resins are usually used for powder, maintenance, and coil coating. It is also used for electrical applications because of its chemical or impact resistance qualities. Good flexibility is one of its many features. Some products of this category are also used in warm areas due to its heat curing qualities.

     Multifunctional – Multifunctional resins are known for their characteristics of property retention on different temperatures. It is used for the lamination of circuit boards to block UV. Some products in this category also provide features like; low viscosity and stability. Due to its many properties including chemical, organic solvents and heat resistance, it is an ideal product for coating, adhesives etc. It is also used in civil engineering; RTM applications, and composites, due to its good flexibility.

Other types
Almost every epoxy resin manufacturer produces this resin in some other variants also, such as diluents, specialty, cycloaliphatic etc. These products are used in secondary containment, tank linings, composites, filament winding, pultrusion, and impregnation applications. They offer certain qualities like; low volatility, wettability, and low odor level.

Major uses of epoxies
This product is mainly used for coating many types of equipment. Its chemical and water resistant qualities make it an ideal product to be used for ships, boats or any tool that comes in the direct contact of water. It is also used for powder coatings, and flooring.

What you need to know about the classification of color compounds!

Colors have a special place and meaning in our lives. There is no substitute for colors, which is why we include colors for everything in our everyday lives like; clothing, cars, housing, and in so many, many more things including food. It’s just next to impossible to imagine or live our lives, without color.

Before differentiating color compounds, let us differentiate metals – ferrous and non-ferrous.

Ferrous are the ones, which have large concentration of iron in them and non-ferrous are the opposite.

Now take a look at the various types of compounds of colors-

     1. White Colored Compounds
At times, we need to shine the non-ferrous metals as much as we can. The process goes like this; first, the surface is prepared accordingly. Then, a white compound is applied to the surface to make it as shiny as possible.

     2. Red Colored Compounds
It is also used on non-ferrous metals, and the materials like knobs, fixtures, cabinets, buffs and domet are polished with the help of red colored compound.
These compounds help in giving shine to the knobs and make sure that there are no scratches left on the objects.

     3. Chrome color compound
Plated material is polished with the help of this category of the compounds of color. This helps in giving shine to the material. The chrome compound can be applied to stainless steel. Moreover, it also helps in giving a clear-cut look without any cuts on the material. There is no risk of corrosion on the non-ferrous material, if this compound is applied properly. However, chrome color can be used for non-ferrous and plastic material as well.

For non-ferrous materials, silica can also be used. Silica is a compound used in making flawless mirrors. The shine of a mirror depends on the amount of silica present in it.

What are the 2 most commonly used dyes?

Dyes are widely used in petrol, oil, wood, spirit, leather, plastic paper, aluminium foil printing, transparent lacquers, nitrocellulose, cellulose acetate, vinyl, alkyd, other synthetic resins, moulding powders, construction material of cellulose acetate, celluloid, polystyrene, polymethacrylates, PVC, P/F, U/F, Inks for rotogravure and rubber stereo printing, ball point pens. Etc.

Natural and synthetic dyes are the most commonly used type of solvent dye.

Natural Dyes
This type of dye is obtained from natural sources, such as plants. This colorant came into use during Neolithic period.

Originally dyes like; Tyrian purple and Crimson kermes were the ones that were typically used in historical times. However, through the years the use of these dyes has decreased, as many other natural colorants came into use such as; woad, madder, saffron, and indigo.

The existence of these chemicals came into place from Asia and Africa when they introduced fashion coloured textiles. This made the need for natural colouring agents even more vital.

Besides these dyes, some other chemicals that came into existence recently include; cochineal and logwood colors.

Synthetic Dyes
Unlike natural dyes that came into existence from Spain, synthetic dyes were discovered by William Henry Perkin.

With synthetic dyes, thousands of chemicals were fabricated later in the coming years. The fabricated chemicals that came in the list of synthetic dyes offered a wide range of benefits, which is why they replaced natural colorants.

Main benefits of synthetic dyes:

• Good production rate
• Diverse colours
• Better adherence property
• Better colouring properties

These dyes are further classified into many types- like; basic, mordant, vat and reactive colouring agents.

Before purchasing dyes, you need to have a good amount of knowledge about these chemical products. Along with a thorough familiarity with these, you also need to take into account the credibility of the supplier.

Experience is an important point to consider, if you want good quality products. Therefore, a good research is a must.

Make a list of all those suppliers that are known for delivering, the most reliable products.

What is Sodium Hydrosulfite?

Sodium Hydrosulfite is a chemical used in the production of many household products. This versatile compound is in high demand because of its increasing popularity. The chemical formula for this compound is, NaHSO3. In structure, it is the sodium salt of dithionic acid, also known as sodium dithionate.

Some of the most common industries that rely on this chemical for the production of their products are; textiles, dying processes, chemical processing, leather, photographic, polymers, gas purification, etc. This compound is also used for carrying out physiology experiments.

Most commonly, this chemical performs the following roles:

Reducing Agent: When this compound works as a reducing agent, it chemically reduces other components by donating an electron or electrons. 

Sulfonating Agent: In this role, it adds sulfur to another chemical compound.

Cation Source: When it works as a cation source, it adds a cation or sodium, to the product system.

Sodium Hydrosulfite: Is considered an inexpensive and safe reducing agent for the reduction of vat dyes and sulfur containing dyes. On the other hand, it’s also used as bleaching agent in reductive bleaching processes. If stored and kept with caution, it has a shelf life of over 12 months.
 
Usage of this chemical requires many safety precautions such as:

• You must use this chemical with proper ventilation.
• Keep it away from heat and water.
• No inhalation.
• Store it in a cool and dry area.

When buying this chemical, make sure that you buy it from a reliable vendor that processes it in compliance, to ensure that it meets with the industrial standards. You can purchase this chemical in the form of white crystalline powder. Shipping of this chemical is an important aspect, and it should be performed under appropriate caution.

Perform a reputation check of the vendor, and get everything sorted out, before you make the final decision. Get in touch with the concerned officials, if you have any doubts or questions left.

Safety precautions for workers: Usage of this chemical is intended for industrial use only. Workers conducting the production of this chemical should work under controlled conditions. Worker must use personal protective equipments to ensure their health and safety.

Be cautious when choosing paint for your home

When remodeling a house, there are hundreds of things to keep in mind like; interiors, flooring, the final layout and lastly; the house paint.

However, when it comes to painting your home, there are many things to be considered like; color, texture, attractive designing patterns etc. In addition to this, emphasis is also to be laid on the details of paint rather than simply concentrating on colors and textures.

Sometimes, manufacturers add harsh and cheap chemical reactive diluents to their paint, which can be harmful for those people residing in the house. The polluting gases present in such paints, lead to several health problems such as; frequent headaches, breathing disorders, irritation in the eyes and more. Unfortunately, Harmful VOC components are introduced in the paint during production, by many paint manufacturers, in order to make bigger profits.

Therefore, it is of the utmost importance for the house owner, to be cautious when buying paint, and look at the details of the paint, printed on the can.

Before you make a choice, it is important to enquire about the paint constituents and about the paint companies.
Make a list of the top renowned paint companies, which only deliver quality paints to their customers.

Choosing organic paints is definitely a safer option. Not only you would get a colorful wall, but also get a healthy surrounding, as there would be no risk of health hazards.

Therefore, it is very important to do a thorough research before buying house paint. After all, it is yours and your family’s health that’s important.

Choose paint that is safe, as well as cost effective, if you do not want to end up spending too much money on paint.

Some common types of plastic coloring agents

There is a large variety of plastics available in the market. Different materials are used for making different types of plastic. This difference requires the use of different dyes for coloring.

If a plastic product is made out of nylon (a regular material that is commonly used for making Frisbee discs), it can be dyed by adding water to the acid Dye. The plastic is then heated in that water. Mild acid like vinegar is added to the water to achieve the required pH value. Nylon works well with acid dyes, whether it is in the form of woven textile fiber or plastic form.

The dye bath should be kept at 185 degrees Fahrenheit. If the temperature is higher, it may distort the shape of the nylon product, and may damage the fabric. But, at the same time low temperature is not going to work well either, because it will not allow the dye to bond perfectly with the fiber. 

Another common material used for making plastic products is polyurethane, which can be dyed using acid plastic dyes. This material can easily be damaged if the temperature is set high. Polyester is a material that cannot be colored using any of the dyes that have been mentioned above. This material can only be colored using colorants from the category of Disperse dyes.

Acid dyes do not blend well with polyester. The process used for disperse dyes demands higher temperatures, preferably above a hundred degree centigrade. If the temperature is set below this, it may result in a disappointing output. This material is a preferred choice when it comes to coloring synthetic materials like acetate and acrylics.

This material cannot be used for dyeing acrylics, which is the safest choice of material for regular usage. Acrylics can also be colored by using basic or cationic ones. When using the basic ones it is essential to have a safe laboratory. When using it at home, we must be very careful as it may stain everything that it comes in contact with, real bad.

You simply cannot color some plastics at home. Some of them have to be dyed only when they are in the liquid form. For instance, polypropylene that is marked with recycle log 5 is used for making water bottles, sports clothing, stain-resistant carpets, and upholstery materials, etc.
This material requires special material for coloring, because it repels water molecules.