Posts Tagged ‘Plastics’

Engraving Plastics is Popular

special plastics for engraving have been developed for signage, faceplates, and other items.

standard cast and sheet acrylic plastic and other resins can belaser engraved

. commonly engraved awards use a cast acrylic shape lasered from the back. styrene, the plastic used to make compact disk cases, and many thermoform plastics, will soften around the edges of the engraving, resulting in low contrast. the surface may even ripple or become deformed. in some applications, such as date marking on plastic soda bottles, this is acceptable.

special plastics for engraving have been developed for signage, faceplates, and other items. these plastics incorporate silicate and other materials that conduct heat away from the material before it can become deformed. outer laminates easily vaporize to expose a different colored material underneath.

other plastics may be engraved, but experimentation should first be conducted on a sample piece. bakelite and some hard engineering plastics are said to do well. expanded plastics, foams, and vinyl s, however, should be cut with a router for the purpose. urethane and silicone plastics cannot be laser engraved unless they contain cellulose, stone, or some other nonconductive material.

. commonly engraved awards use a cast acrylic shape lasered from the back. styrene, the plastic used to make compact disk cases, and many thermoform plastics, will soften around the edges of the engraving, resulting in low contrast. the surface may even ripple or become deformed. in some applications, such as date marking on plastic soda bottles, this is acceptable.

special plastics for engraving have been developed for signage, faceplates, and other items. these plastics incorporate silicate and other materials that conduct heat away from the material before it can become deformed. outer laminates easily vaporize to expose a different colored material underneath.

Brotherjet multifunction flatbed printer is working for the solutions of flat-bed inkjet printing and personalized gifts print; it is expected to be the leading company in the worldwide.

Categories: Acrylic Sheet   Tags: , ,

Molding our World: Plastics as Part of our Daily Lives

What are plastics?

Plastics as we broadly understand it today are synthetic or semi synthetic products or raw materials, formed by polymerisation, and are largely derived from oil. Polymerisation is the formation of polymers i.e. repeated numbers of smaller structures (monomers) joined together.

It wasn’t until the 1860s that the first semi synthetic materials or plastics were first brought to the attention of the world, and since the development of thermoplastics throughout the 1900s it’s hard to imagine how difficult life would be without plastic. The main reasons why plastics replaced more traditional materials are quite straightforward when you think about them.

What’s so good about plastics?

Plastics are relatively light and very durable. The hundreds of different plastic varieties are ultimately recyclable, although it’s only in recent years that our UK society has begun to take advantage of plastic recycling, often in tandem with our weekly waste collections. Plastics have great thermal and insulating properties (clothes, carpets, bedding etc). Plastics are resistant to many chemicals and water, as well as being very strong.

Most notably though, plastics have proven relatively inexpensive to produce, and are so versatile that they can take on almost any form and colour.

What are the popular types of plastics and what’s the difference between them?

Acrylics

These were developed in the 1930s. Acrylics are particularly resistant to the weather and the sun. Acrylic is particularly effective as ‘clear’ plastics, and transmits light brilliantly. Applications include leaflet holders, signs, display cases, boat windows and point of sale to name but a few.

Plexiglas

Often wrongly spelled as Plexiglass, Plexiglas is actually a brand name for a kind of clear thermoplastic resin that’s basically a cross between acrylic and polycarbonate.

Polycarbonate

First developed in the 1950s, these thermoplastics most popularly have engineering applications. This is due to polycarbonate’s strength coupled with versatility, and its electrical insulating properties. Applications include machine guards, capacitors, gaskets etc.

Perspex

This is a variety of polycarbonate. It is popularly developed in sheet form and is widely recognised as a kind of ‘clear’ plastic.

Polypropylene

Another plastic developed in the 1950s with industrial applications, this is particularly suitable for hot fill packaging because it has low density but is very rigid. Other applications include carpeting and packaging.

PVC

Poly Vinyl Chloride (PVC) can be shaped and moulded into an exceptionally wide variety of products. Chemical Plant Industry applications of PVC include water tight tanks, and ducting for Clean Air Systems.

PETG

Polyethylene Terephalate Glycol (PETG) is another industrial thermoplastic. Applications include frames, sign holders and point of purchase displays.

How it takes shape

Modern advances in plastic fabrication, moulding, casting, extrusion, thermoforming, cutting, bending, machining, gluing, welding, stamping of sheets, plastic engraving, fibres and solid blocks mean that our imagination provides the only real limitations to what form plastics can take.

Conclusion

If you asked most people, they would be unlikely to know what plastics actually are, and even more unlikely to be able to tell you the difference between the many types. Despite this, plastics are a central and essential part of modern daily life.

Plastic Fabrication Hampshire
Bespoke plastic fabrication

Categories: Perspex Sheet   Tags: , , , , ,