The disadvantages making use of latex rubber to get used with humans is well documented. Indeed, now we have seen numerous material substitutions from latex to silicone across many industries.

1. why silicone rubber is an
This information will concentrate on the increasing utilization of silicone rubber during the medical
industry.
Silicone rubber is inherently a non toxic, bio-compatible material. In contrast to the lawsuits
regarding silicone implants during the 1990s (and also the negative publicity which followed),
silicone rubber is a safe material. I'm not likely to say you could feed it to the dog as being the
animal could choke on it, nevertheless it wouldn't poison it!
So, silicone rubber provides the following advantages over other materials in terms of medical
applications:
* It can be biocompatible and non toxic
* It withstands common sterilization methods e.g. autoclave
* They have an operating temperature range of -50?c to 250
* It could be supplied inside a hardness ranging from 10 to 90 Shore A
* It can be pigmented to any type of colour
* It truly is inherently flame retardant
* It is actually weather and ozone resistant
* It is actually electrically conductive or insulating
These types of silicone rubber are frequently used in their medical applications:
* High Consistency Silicone Rubber (HCR) - either platinum or peroxide cured;
* Liquid Silicone Rubber (LSR) which is platinum cured.
The current trend is perfect for products being created in liquid Pad printing silicone rubber, but
there is still a large destination for the greater amount of traditional HCR.
The excitement of liquid silicone rubber has increased as it is an increased purity platinum-cure
silicone, and medical device manufacturers are interested in its excellent part quality. Moreover,
the reduced human contact during processing reduces the potential risk of contamination,
particularly if manufactured in a clean room environment. LSR is generally supplied in 2 parts
using one of the various components containing the platinum catalyst. These are then
automatically mixed with any colours and ingredients which can be required. The mixing produces

2. a very homogeneous material which leads to products that are not only very consistent
throughout the part, and also from part to part.
Okay, so the platinum cured liquid silicone is clearly an incredible material. However, you will
discover drawbacks regarding liquid silicone. Above all is the price tag on the tooling. The clue is
within the name - 'liquid'. The tooling requires extreme precision and workmanship in order to
avoid the information going where is shouldn't! Also, like this material lends itself to producing
small components the tooling is normally automated. This produces a very expensive tool.
Needless to say, with high volume parts the payback time won't be too long despite the presence
of expensive tools, but what if you don't have a great volume requirement? The second drawback
is there is less scope to change the information. It is because it it supplied in sealed drums from
your suppliers mixing large quantities of any limited number of standard grades. This can be great
if it grade of LSR fits your needs, though not so great should you need a custom silicone rubber.
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