Silicone moulds for centrifugal pewter casting

Manufacture of parts by pewter casting

We formulate, manufacture and supply a wide range of silicone moulds specially designed for the manufacture of pewter parts. The SILCODISC-PE series has excellent mechanical strength and high tear resistance to ensure long mould life. These are moulds designed and formulated for centrifugal casting of low melting point metal alloys such as pewter (tin), lead and its alloys.

Thanks to our own laboratories, we are able to manufacture silicone moulds for pewter to measure and on demand, which allows us to satisfy any need our customers may have for their production process.

Our range of silicone moulds for pewter is marketed under the brand name SILCODISC-PE. They are moulds with a long service life due to their high mechanical and tear resistance. They are designed and formulated for centrifugal casting of low melting point metal alloys, such as pewter and other tin alloys. They are also suitable for the centrifugation of RESINS, both polyester and polyurethane.

Nuestros moldes de la serie SILCODISC-PE se caracterizan por:

    • Extraordinary resistance to tearing.
    • Low viscosity before vulcanization (raw), which facilitates handling for mold making and part nailing, minimizing the “rebound” effect.
    • High flexibility, which allows the demolding of complicated parts.
    • High resistance to metal abrasion.
    • High resistance to chemical attack by resins.

In our laboratories we carry out a meticulous control of all raw materials and, thanks to high-tech equipment, we carry out all the quality controls necessary to certify the manufactured product.

WHAT TYPE OF MOULD TO USE?

In order to determine which is the most suitable type of mould for the part we want to manufacture, we must take into account several factors, among which the following stand out:

    • Shape (geometry) of the part
    • Weight/volume ratio of the same
    • Size of the part conditioning the mould diameter
    • Flexibility required for the demoulding of the part.

Range of molds for all types of pewter applications

They combine high thermal resistance with very good mechanical strength.



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DEVELOPER LICENSE

SILCODISC

 PE55

INTENSE GREEN

55 Sh A

High mechanical strength

High flexibility.

Small and medium-sized parts

Parts with high extraction difficulty.

Diameters from 230 to 500 mm

Standard thickness 8 – 10 – 12 – 14 mm

Tin and resin alloys only

DEVELOPER LICENSE

SILCODISC

PE 57 AM

GREEN

57 Sh A

High mechanical strength

High flexibility.

Small and medium-sized parts

Parts with high extraction difficulty.

Diameters from 230 to 500 mm

Standard thickness 8 – 10 – 12 – 14 mm

Tin and resin alloys only

DEVELOPER LICENSE

SILCODISC

PE 60  

PINK

60 Sh A

High mechanical strength

Medium/high flexibility

Small and medium-sized parts

Pieces with medium/high extraction difficulty.

Diameters from 230 to 500 mm

Standard thickness 8 – 10 – 12 – 14 mm

Tin and resin alloys only

DEVELOPER LICENSE

SILCODISC

PE 65

RED

65 Sh A

High mechanical strength

Medium flexibility.

Medium and large parts

Parts with medium extraction difficulty

Diameters from 230 to 500 mm

Standard thickness 8 – 10 – 12 – 14 mm

Tin and resin alloys only

For the manufacture of parts that are difficult to remove from the mould, we should choose moulds of lower hardness, as they are more flexible and have excellent resistance to breakage.

All our products have Technical Data Sheet (TDS) and Material Safety Data Sheet (MSDS). Do not hesitate to ask for more information.

Although it is true that our SILCODISC moulds do not have an expiry date, we always recommend using them within 6 months of manufacture.

For optimum results in the manufacture of your pewter parts, we recommend the use of our pewter alloys, which are specially designed for casting quality parts. See our section on pewter alloys.

Applications of pewter moulds

Pewter is not an inexpensive material, it is highly resistant to elements such as oxidation and loss of shine. These characteristics make it a very popular material for the manufacture of parts in a wide variety of activities and applications.

The main sectors that use our pewter moulds are:

    • Jewelry
    • Wargames and miniatures
    • Shoe ornaments
    • High-quality fashion accessories without mechanical demands
    • Gift items
    • Maquetismo

Instructions for use

To ensure optimum results in the manufacture of parts by pewter casting in a silicone mould, it is essential that the operator’s hands, work tables and all tools are kept at the highest level of cleanliness. In addition, the original parts must be free of any traces of grease or varnish.

Thanks to the low viscosity of the mould before vulcanisation, the parts are placed in the mould in the usual way and very easily.

The following parameters have to be taken into account for the vulcanisation of the mould:

    • Temperature: 170 – 180 ºC
    • Pressure: 10 kgs/cm2 minimum. See our pressure table
    • Time: 5 minutes for every 2 mm. of mould thickness

Example: taking these data into account, a 10+10 mm mould. = 20 mm thick, it would require 50 minutes of vulcanisation at the indicated temperature.

To make the mould correctly, we have all kinds of accessories such as centring devices, mould release agents, gouges of different sizes, tear-off silicone, Teflon and silicone bars, etc.

In addition, if you have any doubts about the manufacturing process of the parts, both when making the mould and the casting process, or if you simply want to improve your technique, Coniex offers centrifugal casting courses, which are given at our facilities.

Our Applications Laboratory is at your disposal for any questions you may have.

Accessories and complements for centrifugal casting

PLAN – PRICE

Description

MOULD HOLDERS

Manufactured from high quality steel for perfect vulcanisation

TOOLS

Essential tools to facilitate the making of the moulds

ZAMAK CENTRING PINS

They have a design and shape that allows a perfect seal during the process.

POSTIZOS

Teflon rods and silicone cord ideal for hairpieces

PLAN – PRICE

Description

RELEASE AGENTS

It is used as a release agent in the mould vulcanisation process.

SAFETY MATERIAL

We have the material and equipment for work protection

ACCESSORIES

We have a wide range of accessories for centrifugal castings.

SILICONE TEAR

For zamak and pewter, specially designed silicone to prevent mould breakage

Gallery

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