Silicon Rubber Molds
Due to its good flexibility and elasticity, silicone rubber molds are able to produce parts with complex structures, fine patterns, no mold pulling angles, and even negative angles and deep grooves. It is a popular method of rapid mold manufacturing. Due to its good flexibility and elasticity, silicone rubber molds are able to produce parts with complex structures, fine patterns, no mold pulling angles, and even negative angles and deep grooves. This type of mold has a short production cycle and can guarantee high quality. The cost of silicone rubber materials is relatively high. When it comes to small batches, the material accounts for most of the cost of silicone rubber mold manufacturing, especially for large sizes and 1 PC production.
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Product Introduction
B-F Mold Technology Co., Ltd is a group of professional plastic mould engineering and manufacturing companies, providing excellent solutions for various industries, and taking innovation, expertise and quality control as the backbone of our business core and provide our customers with a comprehensive end-to-end service for any product, engineering or manufacturing need. The company was established in 2010 and grown up to a medium mold making company with 95 employees and a 4500 square meters tool building shop .The average mold design and building experience of our designer and mold maker isover 10 years. Automotive interior and exterior trim, medical mold, home plastic, cosmetic mold, compression mold.
Why Choose Us
Our Factory
The company was established in 2010 and grown up to a medium mold making company with 95 employees and a 4500 square meters tool building shop .The average mold design and building experience of our designer and mold maker isover 10 years.
Our Product
Automotive interior and exterior trim, medical mold, home plastic, cosmetic mold, compression mold, Product Application, Injection mold & molding, Overmold & 2K Mold, IML Molds(In-Mold Label), Cube Molds, Stack Mold (T Molds), Insert Tooling, Rubber/ Slicon mould, Compression molds baby plastic molds.
Our Service
We provide excellent solutions for various industries, and taking innovation, expertise and quality control as the backbone of our business core and provide our customers with a comprehensive end-to-end service for any product, engineering or manufacturing need.
Our Certificate
GB/ T9001：2016,ISO 9001：2015, ISO9001.
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To quickly and efficiently give yourself the best chance of prototyping success, you need a proven and tested silicone that you can trust to provide accurate design dimensions.
Due to its good flexibility and elasticity, silicone rubber molds are able to produce parts with complex structures, fine patterns, no mold pulling angles, and even negative angles and deep grooves. It is a popular method of rapid mold manufacturing. Due to its good flexibility and elasticity, silicone rubber molds are able to produce parts with complex structures, fine patterns, no mold pulling angles, and even negative angles and deep grooves. This type of mold has a short production cycle and can guarantee high quality. The cost of silicone rubber materials is relatively high. When it comes to small batches, the material accounts for most of the cost of silicone rubber mold manufacturing, especially for large sizes and 1 PC production.
Advantages of Silicon Rubber Molds
Good Simulation
Silicone rubber has good simulation, strength and very low shrinkage.
It is easy to make elastic molds with this material, require no special technology and equipment, and it only take a few hours to finish at room temperature.
Reusable
Silicon rubber mold is reusable and withstand rough operation, protect the prototype and maintain products precision tolerance of batch production, and can make complex shape parts, no milling and grinding processing and other processes.
Shorten The Trial Production Cycle Of The Product Largely
Demolding is very easy, shorten the trial production cycle of the product largely , and mold modification is very convenient.
Good Elasticity
Because the silicon rubber mold has very good elasticity, the convex and concave parts can be directly drown out after pouring molding, which is very unique.
Silicone Rubber Classification for Silicone Rubber Molds
General Purpose Silicone Rubber
General purpose silicone rubber has a shore hardness of a 30 to a 70 and is used to make common products such as kitchen utensils and kitchenware. It can be used for compression molding and extrusion of a wide range of products including tubing and vehicle parts.
Low Hardness Silicone Rubber
Low hardness silicone rubber is the softest of the classifications with a shore hardness between a 5 and a 20. It is used to produce baby bottle nipples, food storage film, anti-slip mats, and shoe insoles. The wide use of low hardness silicone rubber is due to its stretchiness, which makes it possible for the material to be pulled and reformed to several times its original size without tearing.
High Hardness Silicone Rubber
High hardness silicone rubber has a shore hardness up to a 90 after being cured. It has high elongation and tear strength and is used for molding, extrusion, and calendaring to make products that are abrasion and fatigue resistant. Products produced using high hardness silicone rubber can be transparent or translucent with exceptionally high tensile strength.
High Strength Silicone Rubber
High strength silicone rubber is designed to be able to withstand extreme elongation and tearing and is highly resistant to abrasion and fatigue. As with high hardness silicone rubber, high strength silicone rubber is used for molding, extrusion, and calendaring. It has a tear strength of 29 to 49 kn/m compared to a tear strength of 9.8 kn/m for general silicone rubber.
Transparent Silicone Rubber
The most common versions of silicone rubber are red, black, or gray, which are available in a wide variety of forms and shapes. Clear sheets of transparent or clear silicone rubber are also used for liquid injection molding. Transparent silicone rubber has shore hardness of a 10 to a 70 with shore a 40 on the durometer being the most common type. The transparency of clear silicone rubber makes it possible to use it as an invisible gasket that does not interfere in the aesthetic appearance of a cosmetic product. A common use for transparent silicone rubber is as air flow diaphragms on ventilators and respirators.
Flame Retardant Silicone Rubber
Flame retardant silicone rubber is designed with high thermal conductivity and heat resistance. It is used in applications that involve fire or direct heat contact and is self-extinguishing. The production of flame-retardant silicone rubber requires the blending of a special set of compounds in specific quantities and special curing. The property of flame resistance is common to all forms of silicone rubbers, which is enhanced in flame resistant silicone rubber by the addition of blockers.
Thermal Conductive Silicone Rubber
Thermal conductive silicone rubber moves heat away from sensitive areas and is used with cpus and electronic enclosures. The rapid development of smaller electronic components has necessitated the implementation of methods to remove the excess heat they generate without damaging their electrical functions. Since silicone rubber can be produced in a wide variety of thicknesses and forms, it is the ideal material for dissipating heat in small electronic devices.
Electrically Conductive Silicone Rubber
Electrically conductive silicone rubber has all of the normal properties of silicone rubber but is compounded with carbon and other materials that are electrically conductive. It is used to reduce or eliminate electromagnetic interference (emi) and radio frequency interference (rfi) noise that is found in various electronics. Electrically conductive silicone rubber is referred to as metallized silicone, which refers to the various metals that are placed in the rubber such as monel or aluminum wire.
Heat Resistant Silicone Rubber
One of the properties of silicone rubber that makes it applicable to a wide range of processes is its thermal conductivity, which makes it possible to transfer heat at a very low rate, a factor that makes it heat resistant. There is no change in its properties at 150°c (302°f). The heat resistance of silicone rubber is due to the stability of its chemical structure, which is based on its siloxane bonds that are tightly bound and exceptionally stable.
Oil Resistant Silicone Rubber
The polymer structure of oil resistant silicone rubber is unaffected by oils and maintains its structure after being exposed to oils. The high temperature resistance of silicone rubber combined with its oil resistance makes it ideal for use in applications that involve and require the use of oil.
Pourable Silicon Rubber Molds Material
Silicone rubber is a stretchy material that is widely used in industry and home use and has become very much a part of our lives. We all use it every day in things ranging from the clear elastic in our clothes to our muffin pans and potholders to the sealants in our bathroom showers. Because of the stretchy nature of silicone rubber and the way that it faithfully conforms to the contours of whatever it is touching when it cures, silicone rubber is widely used in making molds of all kinds, for all kinds of materials, including food, medical devices, theatrical makeup, hobbies, and even polymer clay and jewelry components. Silicone molds are typically created with something called RTV silicone (for Room Temperature Vulcanizing). RTV silicone consists of two parts that are combined to catalyze a chemical reaction to cause the rubber to "vulcanize" or become polymerized from a very sticky flowing material to a non-stick, stretchy, and durable material. There are many, many types and formulations of RTV silicone rubber mold material, but for craft and hobby uses they are available in two general forms, a pourable silicone rubber and a silicone mold putty.
Silicone rubber is an artificial rubber made chemically from a whole soup of elastomers and polymers. It is not made from natural rubber and therefore does not have the natural rubber proteins that trigger an allergy. So don't worry if you have a latex rubber allergy, you won't have any trouble with silicone rubber.
Two parts, A and B, are combined and mixed to create a liquid, pourable molding material. Sometimes the ratio is 1:1 and with other brands the ratio might be 2 parts per hundred. Always read the instructions because every brand is different. Because the uncured silicone rubber is liquid, you will typically find this material used to brush on the outside of a shape to form something called a "glove mold". Or you can pour it onto a flat item to create a "blanket mold".
How Is Silicone Rubber Moulding Carried Out?
Creating the master pattern
The first step in the duplication process is the creation of the master pattern. Modern rapid prototyping technologies are used to create the master pattern. At wayken, we implement modern technologies such as 3d printing and cnc. These methods are both faster, cheaper and reliable as compared to other traditional methods offered in the market.
The setup
Before the mould is made, gating and venting should be considered. The vents and gates allow for the casting material to flow into the rubber silicone mould. The location and the size of the gates are determined by the shape and volume of the master pattern. As a rule of thumb, the greater the volume of the master, the bigger the gate area.
Choosing the silicone rubber
The silicone rubber used today for the moulding process are of two types. Condensation cure (tin base). Addition cure (platinum base). Both the silicone types have slightly different characteristics and properties. When selecting the right silicone rubber for your mould, one of the most important consideration is the silicone rubber resistance to inhibition. Inhibition is a result of any contamination present in or on the master that is to be moulded. A patch test needs to be carried out prior to the moulding process in order to determine or remove any containments present.
Making the silicone rubber mould
After the master pattern is created, a silicone rubber mould can be made. One of the most important characteristics of the silicone rubber is its reproduction accuracy. Silicone rubber is widely known for their extreme degree of detail duplication. The following are two main types of configurations that can be used to create the silicone rubber moulds.
Common Applications for Silicon Rubber Molds
Prototyping
Silicone molding is used in prototyping and product development production across a wide range of industries. Because the cost for silicone molds is substantially lower than hard tooling for traditional manufacturing processes like injection molding, casting in silicone molds is ideal for prototyping product designs as well as creating beta units for testing the market and consumer response to a new product. While 3D printing is better suited for creating one-off parts quickly, silicone molding and urethane casting can be ideal for smaller runs of parts.
Jewelry
Jewelers use custom silicone molds to duplicate hand-carved or 3D printed patterns in wax, allowing them to phase out the time-consuming labor of creating wax-carved patterns for each new piece, but still continue to cast from wax. This offers a major leap in serial production, making it possible for investment casting to work at scale. Because silicone molds capture a fine level of detail, jewelers can produce pieces with ornate details and intricate geometries.
Consumer Goods
Creators use silicone molds to make many custom crafts such as soaps and candles. School suppliers often use silicone molds to form items such as chalk and erasers. Toy and collectible manufacturers also use the technique to produce high-quality and accurate miniatures and custom figurines.
Food and Beverage
Food-grade silicone molds are used to form all sorts of whimsical confections, including chocolates, ice pops, and lollipops. Since silicone can handle heat up to 400° degrees Celsius, molds can be used in cooking, too. Small baked goods such as muffins and cupcakes rise nicely in silicone molds.
DIY Projects
Independent artists and DIYers often use silicone molding to craft unique creations. You can use silicone molds to form or replicate everything from bath bombs to dog treats-the possibilities are nearly endless. A fun silicone molding project for kids is to create a lifecast of their hand. Just make sure you choose a skin-safe silicone.
How to Extend the Life of Silicon Rubber Molds
Proper Cleaning
After each use, wash the moulds with warm, soapy water and dry them thoroughly before storing them. Avoid using abrasive cleaners or scrubbers that can damage the surface of the mould.
Proper Storage
Store the moulds in a cool, dry place away from direct sunlight, heat, or moisture. You can also store them in an airtight container or plastic bag to protect them from dust or debris.
Proper Usage
Avoid using sharp or pointed tools to remove the finished product from the mould, as this can damage the surface of the mould. Instead, use gentle pressure to push the product out of the mold.
Avoid Exposure To Extreme Temperatures
Extreme temperatures can cause silicone moulds to deteriorate more quickly. Avoid exposing them to temperatures above 250°C or below -40°C
Avoid Exposure to UV Light
UV light can also cause silicone moulds to deteriorate over time. Avoid exposing them to direct sunlight or UV light sources.
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