Thursday, December 5, 2013

Some common applications of epoxy putty!

It takes two constituents to form epoxy putty. Those two constituents are polyamine which is used as a hardening agent and epoxide, which is a common resin. The two are kept apart until they are mixed together in a particular shape. Once the epoxy putty is molded, it is left to harden and cure. Upon curing, the putty becomes extremely durable and hard. Epoxy putty has a number of applications for multiple purposes.

It is mostly used for household and automotive repairs. This putty has the ability to fill in holes and dents in cars, and it can also fill the gouge in fiberglass boats. Since it does not seep or bleed, it is good to fill holes in damaged wood and repair broken crockery and dishes. Amazingly, Epoxy putty is also good for repairs involving water, because it is super hard and does not soften.

Adhesive usage:
Epoxy resins have good adhesive properties and that is why epoxy putty is ideal for fixing and repairing broken things together. Some of its common uses as an adhesive are; reattaching broken wood pieces, broken shoes, luggage handles, etc. It is highly durable, and can handle heavy weight and pressure. As an adhesive, it has incredible strength, it can bond easily with objects, and incredibly it is also waterproof. This is why it is such an amazing gluing product.

Epoxy putty is commonly used in modeling and sculpturing of many types. It is commonly used in taxidermy, for creating mounts and also for creating relief maps and similar structures. It can easily be sculpted for adding small details to train and airplane models. These structures can then be painted and sanded.

Since epoxy putty is curable for creating durable shapes, it has the ability of carrying weights without breaking or cracking. Because of this property, it is ideal for leveling stuff such as cabinets, chairs and tables. A small piece of putty is molded in the right height and shape in order to avoid the furniture from shaking and wobbling. The putty can be painted on, in order to match the furniture’s texture and color.

Part replacement
Epoxy putty is used for molding out replacement buttons and knobs. It is easily sculpted for replacing oven and air conditioner knobs, and even plastic toys, thus avoiding the need of specialty replacements.

epoxy resins uses in the plastic industry are endless. We have just discussed, some of its most common and major usage.

Friday, November 8, 2013

Preserve your home by using zinc borate for wood!

Is your home protected from harsh elements like; rain, wind and UV damage?

There are a few aspects to be considered, when protecting your home from weather related issues. Stains, sealers and caulking are some possible solutions for such problems

Stains and sealers cover the surface of the logs and other woods, and form a barrier to protect against such harsh elements like; rain, wind and UV damage. Caulking helps to fill gaps, check joints, windows and doors and chinking, and it is used to fill the large spaces between the logs. All in all, these methods are useful for preserving wood.

However, all these methods are only effective when used in conjunction with zinc borate, which is a chemical compound that contains Boron, a mixture of inorganic salts and other minerals.

This is the most appropriate way to protect wood from weather related issues, fungal decay and insecticide. Furthermore, the best factor of using this chemical on wood is that it is flame retardant.

It comes in a powder form, which when mixed with water is then sprayed or brushed on those areas that have cracks or crevices. The ability of the chemical to get diffuse into the wood helps to maintain it, and its moisture content.

The use of this chemical, needs to done very cautiously; rather should be done by an experienced professional only. An expert who will have ample knowledge about the chemical and the quantity of chemical required to prepare the mixture and the equipment required to perform the job safely, which you won’t get from just anyone.

Earlier, this method was commonly use in commercial applications only, but gradually when people started discovering its benefits, it popularly came into use for protecting the wooden structures of homes from fungal decay, wood rot, termites, carpenter ants, subterranean, powder post Beatles and other insects detrimental to wood.

Therefore, if you don’t want your house to get damaged because of weather issues then consider all these factors and get borate.
However, make sure you are buying it from a company that has good experience and can provide the appropriate chemicals that are needed for protecting wood.

Sunday, September 22, 2013

Classification of vat colorants and principles of vat dye applications

Vat dye is an ancient class of natural coloring agents which is used to dye cotton, wool, and synthetics as well as other fabrics. Vat dyes have a Quinanone ring chemical structure in every single molecule.
Properties of theses coloring agents are:
  • Insoluble in water
  • Due to their insolubility feature, they can be used directly on color textile materials
  • The process of coloring is difficult
  • Various color shades can be induced
  • Vat dyes are quick to wash
Principles of vat colorants application:
  • Vatting is a process in which an insoluble commercial coloring agent is reduced. Chemicals like Sodium hydrosulphite and sodium hydroxide are used for vatting.
  • Dyeing is a process in which the desired colors are induced on fabrics of different types. During coloring, the soluble sodium salt of the vat coloring agents are absorbed by the fabric.
  • Oxidation is a process in which the soluble salt of the colorant is absorbed by the textile, and recovered into insoluble form by airing.
  • Soaping is a process in which the colored fabric is boiled in soap and detergent solution, to induce the proper shade and to get color fastness.
Grouping of vat coloring substances:
There is no single classification for quinone vat colorants. According to their properties and considerations, such as Vatting Temperature, Redox potential, Leuco solubility, Time etc., these colorants can be categorized into four groups which are; IN, IN special, IW and IK.

Lets’ have a brief understanding about these four groups:

IN, IN Special Group:

The IN and IN special group of Vat colorants, have high exhaustion features. Due to this property, these dyes do not require the addition of salts. They induce attractive and bright shades with color fastness characteristics. Due to its high exhaustion properties vat dyes show high strikes. This group of colorants requires leveling agents, and protective colloids for producing even colors on the substrate.
The shades like green and violet belong to the IN group, and shades of black belong to IN Special category. This group requires high alkalinity and high temperatures during dyeing.

IW group:

The browns and olives come under the IW category of vat dye groups. It is a property of the IW group coloring substances, which do not fully exhaust. It is suggested to add salts especially if the M to L ratio in the colorants is high. The coloring behavior of the colors that comes under IW category is controllable which can help induce even shades. The colors that fall under this group have slower oxidation features, than the colorants of IN group.
The alkalinity of IW colors is brought down when oxidized. In dark colors shades like olives and browns, high alkalinity results with oxidation patches on the fabric. Generally, the fabric goes under bicarbonate treatment after coloring and before oxidation, it results in an effective oxidation bath.

IK Group:

This group of colors has lower exhaustion characteristics, and needs less temperature during the coloring process.

Monday, August 12, 2013

Epoxy Resin-The one industrial chemical with multiple applications

Industrial construction involves an extensive use of different kinds of chemicals. Use of paints, adhesives, reducers and other chemicals is integral for the proper development of vessels, equipment, machinery, fixtures. All this chemicals are also used in many other industries.

The quality of the chemicals that go into the making of all industrial entities directly impacts the durability, longevity and appeal of the final product.
To understand the properties, effects and application of each industrial element is a long and tedious task, but it’s just as necessary for the betterment of the components that you use in your trade.

There are elements that have multiple applications, and a comprehensive understanding of them can prove to be of excellent assistance when it comes to choosing the right type of product and getting it from the right source.

Epoxy resin has many applications in industrial construction. The adhesive properties that it possesses are very strong and impressive; in addition to that, it is chemically resistant and battle-tested in terms of durability, and endurance.
It is a two part system that includes the main element and a catalyst, in addition to which diluents and other additives may be used.

While individually, a single component of the system is not readily usable and is in fact, irritable, when amalgamated properly, the final product which is a result of all the above mentioned chemicals, is a hard usable, non-sensitizing non-irritable and.

Applications of this system:
  • Surface coating:- It is used to provide a resilient and firm coat to products and goods. In the case of cars, it may be used as a primer. Because sea vessels are prone to more wear and tear, it can be used in place of the actual paint. Also, steel pipes, and other steel products can be coated with it.
  • PVC production:- Eyeglass frames, handbags, artificial necklaces, and other products that contain PVC or even plastic or vinyl use it too.
  • As an electrical insulator:- It can also be used for electrical equipments for being a bad conductor of electricity. For this it may be used in capacitors, electrical components, transformers, circuit boards and other electrical components.
  • Glues and adhesives:- Due to its strong bonding properties, it can be used by anyone from sculptors, artists, and people who have a hobby of model train building, ship building to anyone who need it for its strong industrial applications, like for flooring, roads, bridges, concrete, cars, ships aircrafts and more. It is also used as a dental bonding agent by dentists.
Now that you have some idea about the various applications of this system, it will help you to understand if you can benefit from it, on a practical level.

Tuesday, July 2, 2013

Useful properties of epoxy resins

Epoxy resins are a two-component mixture were developed for use in aerospace industry, but over the years have gained popularity for various other purposes also.

Epoxy resin is commonly used in:
  • As the binder in cements and mortars
  • Non-skid coatings
  • Fiber reinforced plastics
  • General purpose adhesives
  • Rigid foams
  • Industrial coatings
  •  Non-skid coatings
  • Solidifying sandy surfaces in oil drilling
  • Potting and encapsulating media

Wednesday, May 1, 2013


Royce International offers a number of epoxy resin systems derived from aromatic amines. These compositions, which have a high glass transition temperature (Tg) on curing, are suitable for formulating adhesives, potting compounds, filament winding systems and making prepregs.

RoyOxy RAR 921

RoyOxy RAR 921 is the tetra-glycidyl derivative of methylene dianiline, also known as TGDDM (tetra-glycidyl diaminodiphenyl methane) having the following structure:
RoyOxy RAR 921 epoxy resin in combination with RoyOxy RAC 9910 epoxy curing agent is used to formulate prepregs mainly used in the aerospace industry. The cured prepreg has a Tg of 2400C.

RoyOxy RAR 921 can also be used with anhydride hardeners like Nadic methyl anhydride (NMA), hexahydrophthalic anhydride (HHPA) and methyl tetrahydrophthalic anhydride (MTHPA) or with an aromatic amine hardener, diethyl toluene diamine (DETDA) for filament winding. A Tg up to 2350C is obtainable with the latter system.

RoyOxy RAR 922
RoyOxy RAR 922 epoxy resin is the tetra-glycidyl derivative of o,o’-diethyl methylene dianiline represented by the formula:

Although this resin does not give quite as high a glass transition temperature as RoyOxy RAR 921, its lower viscosity of 9000-11000 cp at 250C is an advantage, especially in potting and encapsulating compounds. It is recommended with anhydride epoxy curing agents as well as with RoyOxy RAC 9915 epoxy curing agent in formulating casting resin systems for submersible and tooling applications and for high radiation resistant components.

RoyOxy RAD 104

RoyOxy RAD 104 is diglycidyl aniline.
RoyOxy RAD 104 has a low viscosity of 100-200 cP and is used as a reactive diluent particularly in those applications where a minimal sacrifice of heat deflection temperature is called for. A blend of RoyOxy RAR 921 and RoyOxy RAD 104 epoxy diluent in the ratio 75:25, cured with RoyOxy RAC 9923 epoxy curing agent (aromatic-aliphatic amine blend) gives a Tg as high as 1960C.

RoyOxy BMI11
RoyOxy BMI 11 is a bismaleimide resin usually cured with o,o’-diallyl bisphenol-A. The resin and curing agent have the structures below:

4,4-Bismaleimidodiphenylmethane o’o-Diallyl Bisphenol A
The properties of this bismaleimide system are:

  • Outstanding heat resistance with a Tg as high as 3100C
  • Good toughness
  • Very high resistance to water
  • Processability by hot melt
The main application of this resin system is in advanced composite structures mainly for aerospace. However, it can be used for structural adhesives and specialty coatings as well.

For more detail or information about Epoxy resin systems, Visit