Friday 14 December 2012

Get The Best Mold Making And Casting Materials From Environmolds

EnvironMolds, established in the year 1997 is known for manufacturing user safe and environmental friendly products. We supply all your needs to reproduce anything with our selection of environmentally friendly mold making and casting materials and supplies.

Mold making is the procedure of generating molds for forming metals, plastics, rubber, glass or ceramics in to shapes. Molds are negative spaces that serve as a model or pattern for shaping heated raw material such as plastic, metal, glass, ceramic, or other. Liquid casting material is prepared and poured in to the mold to set. Thus, molding is a process of manufacturing a variety of objects in a specific shape of size. Molds are used for metal casting also.
The most commonly used salt in making ceramic molds is Sodium Silicate which is also known as Water Glass. It is available in solution form and is also used in cements.

This compound is made from sodium carbonate and silicon dioxide. It can be used as a bonding agent as well as in coating on surfaces. When applied to the surfaces of the mold it forms a thin layer that is tough and tight bond or film. The bond formed by applying the sodium silicate is low in cost, resistant to fire, resistant to moisture and water; also it can be treated to temperatures at very high temperatures. The main feature of the film is that it is non toxic and doesn’t have any foul smell.

Thursday 15 November 2012

EnvironMolds – The ultimate destination for mold making and casting materials

THE ART OF IMITATING LIFEWelcome to our company where we supply all your needs to reproduce anything with our selection of environmentally friendly mold making and casting materials and supplies.EnvironMolds was established in 1997 and founded on the principal of manufacturing user safe and environmentally friendly products. The company is located in on the east coast just outside New York City. Our founder Ed McCormick is also an artist, sculptor and teacher and co-founder of the artists’ guild the Association of Lifecasters International (ALI). EnvironMolds not only holds patents for high quality mold making materials it also produces a wide variety of mold making and casting kits for individual users as well as schools and universities

Lets discuss about the most commonly used salt in making molds that is sodium silicate it is an alternative name for the salt sodium metasilicate also known as water glass. It is available in solution form and is solid used in cements, automobiles. This compound is made from sodium carbonate and silicon dioxide. It can be used as a bonding agent as well as in coating on surfaces. When applied to the surfaces of the mold it forms a thin layer that is tough and tight bond or film. The bond formed by applying the sodium silicate is low in cost, resistant to fire, resistant to moisture and water; also it can be treated to temperatures at very high temperatures. The main feature of the film is that it is non toxic and doesn’t have any foul smell.

The solid films formed after applying sodium silicate are formed after evaporation. When water evaporates the sodium silicate forms a more viscous coating on the surface. Titanium dioxide or aluminum is used to make a opaque coating. Clay modeling can be used to make the coating semi-opaque. Sodium silicate is inorganic and is non explosive plus it does not have any hazards. The span of its life is about one year so it is recommended that it should be used in the above mentioned period. The components from which they are made are purely sand and not harmful to the humans or any other type of thing in the environment.

Monday 27 August 2012

About Mold Making And The Types Of Molds

Mold making is the procedure of generating molds for forming metals, plastics, rubber, glass or ceramics in to shapes.

Molds are negative spaces that serve as a model or pattern for shaping heated raw material such as plastic, metal, glass, ceramic, or other. Molten material is heated and poured. The liquid hardens and takes the shape of the hollow shape which is then removed. Thus, molding is a process of manufacturing a variety of objects in a specific shape of size. Molds are used for metal casting also. Molding can be done in a variety of methods. Here are some types of molding application that are adopted by the manufacturers

Types of molding include:

Blow Molding: Blow molding is a process through which hollow plastic parts are formed. The process starts with melting plastic pellets and forming them into a parison. The parison is a plastic having a hole in one end that is compressed so that air can pass through. There are three types: extrusion blow molding, injection blow molding, and stretch blow molding.

Compaction plus sintering: Conventionally, the process is used for molding ceramic objects and other products using compressed powder. The entire process is based on the atomic diffusion, in which, the powdered material is heated to a temperature below the melting point.

Compression Molding: It is a process of molding in which the molding material is first preheated and then kept in the open and heated like a mold cavity. The process is applied on thermostatic plastic compounds.

Extrusion Molding: Extrusion is a process through which a fixed cross-sectional profile can be created. Using this process helps in creating very intricate work. Extruded materials can be polymers, metals, ceramic, foodstuff, concrete, and more.

Injection Molding: This process is ideal for developing parts from thermosetting plastic and thermoplastic materials. The treated material can be aluminium and steel for making body panels of cars, and more.

Laminating: Unifying two or more materials is called laminating and the process adopted is known as lamination. The treated material can be wood, plastic, and more.

Reaction injection molding is a part and parcel of laminating in which the thermosetting polymers are used. Components made through this process are air spoilers, automotive bumpers, and fenders.

Matrix Molding: The process is utilized to shape complex materials such as with glass, ceramic or glass composites. The process is also known as matrix transfer molding.

Rotational Molding (or Rotomolding): This process is also known as rotocasting, rotomolding, or spin casting that is implied to create a vast range of hollow items of plastic.

Transfer Molding: This process is very similar to compression molding which is ideal for thermo set plastic.

Thermoforming: In this method, a plastic sheet is heated to a pliable developing temperature to form a mold and then trimmed to get the right shape of an object. The process is adopted to manufacture containers, disposable cups, clamshells, lids, trays, blisters, and other products for the medical, food, and general retail industries.