A mold is usually a hollow cavity that captures the shape and form of the model to be cast. This negative impression is used to make identical reproductions of the chosen object. How accurately the mold manages to capture the outlines, undercuts and other intricate details of the model depends as much on the skill of the mold maker as the technique and mold making material being used.

However, many other considerations also come into play when making a mold. Such as:

Sealing the model – Small holes or even minute pores on the object can trap the mold making material and cause the mold to lock on to the model. This will not only distort the mold but can also damage the model. Therefore, it is essential to properly coat the object with a suitable sealer before commencing the mold making.

Small holes or even minute pores on the object can trap the mold making material and cause the mold to lock on to the model. This will not only distort the mold but can also damage the model. Therefore, it is essential to properly coat the object with a suitable sealer before commencing the mold making. Using a release agent – It is mandatory to apply a release agent all over the object. Else, the mold making material may stick or even permanently bond with the model. Even though silicone rubbers do not stick to anything, it is always better to use a release agent to avoid damaging the model and prolong the life of the mold.

– It is mandatory to apply a release agent all over the object. Else, the mold making material may stick or even permanently bond with the model. Even though silicone rubbers do not stick to anything, it is always better to use a release agent to avoid damaging the model and prolong the life of the mold. Type of mold – There are varying techniques for making a mold and the right choice depends as much on the model as on the skill of the mold maker. For instance, an attempt to make a single part mold when the model is uneven on all sides or has deep undercuts is doomed right from the start. Similarly, if the model is big in size, a blanket mold will work better. Trying to make a block mold will turn out to be too awkward and unmanageable.

– There are varying and the right choice depends as much on the model as on the skill of the mold maker. For instance, an attempt to make a single part mold when the model is uneven on all sides or has deep undercuts is doomed right from the start. Similarly, if the model is big in size, a blanket mold will work better. Trying to make a block mold will turn out to be too awkward and unmanageable. Lack of reinforcement –Some mold making materials stay soft and flexible even after curing – like alginate body molds. Such molds need to be supported with a shell mold made of plaster or other rigid substance that will help them retain their shape. Else, they will tend to flop and lose their shape.

–Some mold making materials stay soft and flexible even after curing – like alginate body molds. Such molds need to be supported with a shell mold made of plaster or other rigid substance that will help them retain their shape. Else, they will tend to flop and lose their shape. Faulty mold box – The mold box needs to be constructed with care and precision. In case it turns out too small, the model may not fit inside or the mold material may not cover the entire model. Even if the mold box has small leaks on the base or sides, the mold material will seep out gradually during the curing process. The mold is likely to turn out incomplete in such cases.

– The mold box needs to be constructed with care and precision. In case it turns out too small, the model may not fit inside or the mold material may not cover the entire model. Even if the mold box has small leaks on the base or sides, the mold material will seep out gradually during the curing process. The mold is likely to turn out incomplete in such cases. Improper finishing – A mold is not ready for use as soon as it has been demolded from the model. Some molds need to cure further before they can be cast. Moreover, the mold is likely to contain some residue and needs to be cleaned properly. Some buffing or shaping may also be required.

Therefore, considering all the aspects with care is essential.

For more details visit:

EnvironMolds, LLC

18 Bank Street, Suite 1,

Summit, NJ 07901, USA

Call: (866) 278-6653

Fax: (908) 273-9256

E-mail: info@artmolds.com

Website: http://www.artmolds.com