Monthly Archives: July 2016

Tin-Cure and Platinum-Cure Silicones

tinsilicone-hero_-01Silicone rubber is a material of choice for many mold makers and casting artists. The excellent flexibility, superior strength, enhanced resistance and long life work in its favor apart from the versatile usage for almost any application.

Silicone rubber comes as a two-part formula that can be poured, sprayed or brushed on the model/mold. In fact, it is safe and can be used for both mold making and casting as long as it suits your application. Another benefit is that silicone does not stick to anything, so a release agent is mostly not required.

Silicone rubber is often used for general mold making applications as the molds manage to capture fine details and can be made very quickly as well. Most materials – all types of resins, foams, wax and some low-melt metals – can easily be cast in silicone molds. It is also suitable for making soaps and candles, sculpture reproduction, cold casting. Special rubber variants can be used for making food molds, realistic masks, doll reborning, special effects and even life casting.

Types of silicone

Silicone rubber polymers come in two variations – platinum-cured and tin-cured. Both these types are very different from each other and are not even compatible with one another. Let’s find out how:

  • Tin cured silicone rubber uses tin salts (usually 5%) as a catalyst to initiate the cure from liquid state to solid. This is also known as condensation cure. Platinum cured rubber has a platinum catalyst (usually 10%) for curing and is also known as addition cure.
  • Tin cured silicones require moisture for proper curing and excess humidity can accelerate the cure time whereas humidity does not have any effect on the curing of platinum variants at all.
  • Tin cured variants are less expensive and also prove to be easier to use while platinum based ones turn out to be quite expensive.
  • Tin cured silicone molds and casts may tend to shrink a bit at times while the platinum cured counterparts enjoy virtually nil shrinkage.
  • Tin based silicone is tear resistant and even considered biodegradable. Its counterpart is considered very pliable and tough.
  • Platinum cure silicones offer exceptional heat resistance and work better in high temperatures than tin cure ones. The former can even be heat accelerated for faster curing.
  • Platinum cured silicones require very accurate and careful mixing, but this is not the case with tin cure ones.
  • Tin cured silicones are primarily suited for general silicone mold making, prototype applications and prosthetic works. Platinum cured silicones provide good dimensional stability and work well for precision molding, special effects applications, encapsulations and paints. The latter comes in food safe, skin safe and transparent versions also.

So, go ahead and make your silicone mold by all means, but do choose the type of silicone rubber with care.

Article Source: http://EzineArticles.com/9574243

Types of Modeling: What Type of Model Are You?

Modeling is a business with a large variety of styles and caters to people of all ages and sizes. From the kid next door, to a college girl, or a 50-year old dad, anyone has the ability to become a model; it only depends on the style of modeling you are best suited for. Here we list the various kinds of styles that are provided by the various modeling agencies and help you discover what works for your look.

Fashion

This is the where the strict requirement and the toughest standards for models are imposed. Usually fashion models taken for consideration are above 165cm, but generally people above 170cm are preferred. A slender figure is also preferred in most cases for this style. There are 4 main categories of fashion modeling namely, Runway, Editorial, Catalog and Fitness.

Runway: A person is required to do a professional catwalk in order to market a particular brand or fashion wear. Confidence and good height are required in this.

Editorial: High-end fashion magazines where a stylish fashion sense is showcased. A model should have good height, distinct looks, and a camera-friendly photogenic appeal.

Catalog: Print ads for various publications to present different types of clothing wears lines and products. Being photogenic and expressing various moods and emotions are important here.

Fitness: This type perhaps has the toughest body requirements and maintaining your body figure is an essential enduring process. The opportunities here are limited as there only certain kinds of sports and lifestyle brands that require the employment of fitness models, and as such, the competition for this modeling type is very high. But if you do get the opportunity, rest assured, your payment will be a hefty amount.

Commercial

This form has very little requirements other than a marketable look and personality. Anyone with passion for modeling has a good chance at excelling in this field.

Other types are assessed for good acting and role playing, and conversational skills are Television Commercials, Television shows, trade shows, entertainment magazines, event campaigns, and website videos.

Commercial print type of modeling also falls under the commercial category, which include Corporate (E.g. Nurses, Doctors, lawyers), Fitness, Swimwear, Lingerie, Glamour (Modeling with sexual appeal, such as Maxim/Playboy types, only for those above 18 years old.), and Alternative (E.g. Rock, Gothic, Indie looks etcetera).

Promotional

A specific form where one represent a brand, good or service. The modeling criteria are not very stringent on the model’s looks but rather the focus is on the ability to sell a product or idea, being able to communicate, and having an outgoing vibrant personality. Models are mostly used for an event, conventions or shows to promote their brand to consumers.

Plus-size

It is growing in popularity because of its industry and market relevance. This is an area modeling agencies are increasingly picking up on. People here don’t fit the conventional modeling standards, but have heavier weight and present a fuller bodily appearance.

Freelance

Freelance models are not bound to any agency and instead functions like a self-agency. They would have to source for their own clients, manage their own schedule, and promote their own works by creating their own portfolio, comp card, website. They may also work for multiple agencies and not be a contractually signed model for any particular agency. This all sounds very taxing on an individual, but upon establishing the right contacts and working out a proper management routine, this form of modeling is one which may gives higher levels of flexibility and greater number of opportunities.

Body parts

This is a modeling style where specific body parts are modeled for. Most commonly the body parts requested for are hair, legs, and hands. This requires the model to maintain the beauty of the specific body part well and lead a healthy hygienic lifestyle. For example, a hand model must take the effort to wash the hands regularly, cut the fingernails properly, go for manicure if necessary, and lead a healthy lifestyle to maintain the natural skin glow. If you think you have a nice shiny and luscious hair, smooth and beautiful leg or hand, you can highlight your interest to a modeling agency.

Finding the right style of modeling takes time and the guidance of expert modeling agencies for most people. Feel free to visit Create Talents and Models for more details about various types of modeling.

Article Source: http://EzineArticles.com/9579708

Get To Know Your Silicone Rubber

Silicone rubber is a popular material across both arts and industries. This rubber compound displays numerous unique properties that make it ideal for various sophisticated uses.

For instance, the rubber is virtually unaffected by changes in weather or even harsh conditions. It stays stable across temperatures and displays superior resistance to moisture, fire, electricity, oils, chemicals and radiation as well. To add to this, the material is inherently flexible and resilient apart from being odorless and having a long service life. Users avow that it is comfortable and easy to work with too.

No wonder then that silicone rubber is the perfect partner for various manufacturing needs and enjoys patronage in electronics, healthcare equipment, automobiles, household goods, leisure products and even food products to name a few. More and more functions are being discovered and tested day by day!

And it’s not just the manufacturing industry; even artists have silicone rubber to thank for a lot of their creations. In fact, it can be used to make both molds and casts. It is suitable for all types of applications and the molds and casts turn out light, flexible and long lasting with great tear strength. The material can capture minute details clearly and has a natural tendency to not stick to other materials. Therefore, the molds and casts can be easily demolded without requiring a release agent.

Moreover, silicone molds can be used to cast various materials such as wax, foam, soap, plaster, concrete, all types of resins and even low melting metals.

Types of silicone rubber

Silicone is a curing rubber and needs to set properly to become durable. Certain curatives or accelerators have to be added to the rubber and this chemical process is known as vulcanization.

In fact, there are different types of silicone rubber that primarily vary depending on the method and temperature of curing. Such as:

Solid Silicone Rubber (HTV) – As the name goes, this silicone comes in a solid state. It needs to be cured at high temperatures and is hence a high temperature vulcanizing rubber. It displays excellent properties and is widely used in different industrial sectors.

Liquid Silicone Rubber (HTV) – This silicone rubber is available in a liquid state. It is a two-part compound and has to be mixed with a catalyst for curing. It is also a high temperature vulcanizing rubber that displays low viscosity and a quick cycle time. The outstanding process advantages make it ideal for various applications, especially injection molding.

Room Temperature Vulcanizing (RTV) – These rubbers cure at room temperature itself. They come as both one-part and two-part compounds. In the latter case, the vulcanization can be achieved through various catalysts such as tin, platinum or even peroxide. Apart from industrial usage, the two-part RTVs are commonly used to make silicone molds and casts.

Similarly, silicone rubbers are also divided into addition cure and condensation cure categories depending on the type of catalyst. Both are suitable for making silicone molds and casts.

Article Source: http://EzineArticles.com/9587541

Five Awesome Group Events for You and the Squad

Looking for something new and fun to do? Group events tend to go the standard routes – dinner, movies, or meeting up at a bar, to name just a few. Get out there and do something different with your group and you’ll not only have an awesome time doing new things, but you’ll also bond with your crew in a whole new way. Check out a few great options for your next day or night out.

Spend a Day at the Park

Spend a day at the park with your pals. Bet you haven’t spent an afternoon playing frisbee, flying kites, or throwing around a football in years! Have some fun with your team and beautiful Mother Nature. Enjoy the boost your pals and the pure sunshine bring with a day at your local park or other outdoor venues.

Volunteer With a Local Non-Profit

There are few things as rewarding as volunteering. For alternative group events, why not get people together to serve a great cause? Whether it’s building homes, cleaning up a park, or planting a garden, there’s a perfect organization out there to support with your friends or co-workers. Not only will it feel good to get out and make a difference in the community, but you’ll also be able to learn about others and their leadership, time management, and natural communication skills.

Cheer on Your Team at a Sporting Event

Take your entire team to the ball game for a fun and memorable group event. Between brews and burgers, get to know your friends or co-workers and their favorite teams. There’s something about a sporting event that takes one back to childhood. Revisiting those days and swapping sports tales will make for a memorable experience.

Be a Tourist For the Day

Sometimes it’s great to explore your town through the eyes of a tourist. If you’re coming up short on team outing ideas, why not try a guided tour throughout your city, or hit up the hottest out-of-towner spots. Who knows, you may enjoy seeing things from the outside in and build a deeper appreciation for your hometown. Plus, it’s always fun to explore the best of your city!

Challenge Friends to a Game Night

Host a game night to encourage a bit of friendly competition. All you’ll need for this party is a few board or card games, some snacks, and plenty of space to seat your guests. Go old school with classic favorites like checkers or Twister, or do something analytical like Scattergories or Scrabble. No matter what you choose, your guests will enjoy feeling like kids again.

Group events don’t have to be stressful or, worst of all, boring. Inject some fun and team building into your next gathering with one of these ideas, and you’ll be ready for an enjoyable time with those closest to you.

Article Source: http://EzineArticles.com/9591873