© 2015 Ash Industries

1330 W. Willow St.

Lafayette, LA 70506

(800) 598-5274


Experience and talent is what you need if you want to make a successful, cost-effective liquid silicone injection molded rubber part (also known as LIM or LSR)

1330 W. Willow St.  •   Lafayette, LA 70506

We can simply quote your part requirements or we can dive in and find manufacturing efficiencies to save you money. Working with ASH as an injection molding supplier, you will have access to silicone molding creativity and people who are not afraid to find manufacturing and design efficiencies for your liquid silicone molded parts.


Liquid Silcone Injection Molding Thermoplastic Injection Molding


Multiple Colors

FDA/Medical Grade






















At ASH LIQUID SILICONE INJECTION MOLDING manufacturing group within ASH Industries, our list of projects span a wide gamut of industries and OEM projects. From medical surgical devices to medical components to parts that have to operate in harsh environments, we can do it for you. We understand FDA and FAA requirements so you know that you are working with experience in Silicone injection molding and thermoplastic molding.


All of the project engineers you will work with have one thing in common,  they all seek solutions to production questions. Customers also benefit from ASH's implementation of JIT and TOC programs to limit inventories for production runs of ten million assemblies to a thousand custom parts.


Engineers at ASH Industries understand the complexities of beginning a new project and will work to ease that transition. We will ask a lot of questions and will help you with the tooling to make the best parts at the best price.


Injection molding of liquid silicone rubber (LSR) also known as Liquid silicone Injection Molding (LIM) is a process to produce pliable, durable parts in high volume where high quality is a must. Liquid silicone rubber is a high purity cured silicone with low compression set, great stability and ability to resist extreme temperatures of heat and cold and has chemical resistance. The process is an injection molding process at heart, meaning that materials are injected into a pre-made mold, where they're then left to sit and curate. Then, the process repeats itself until the part run is complete.


It is a thermoset process which is the mixing of two liquids.

Liquid silicone injection molding requires intensive distributive mixing at a low temperature before it is pushed into the heated cavity and vulcanized.


Chemically, silicone rubber is a family of thermoset elastomers that have a backbone of alternating silicon and oxygen atoms and methyl or vinyl side groups. Silicone rubbers constitute about 30% of the silicone family, making them the largest group of that family.


Silicone rubbers maintain their mechanical properties over a wide range of temperatures and the presence of methyl-groups in silicone rubbers makes these materials extremely hydrophobic.


Typical applications for liquid silicone rubber are products that require high precision such as seals, sealing membranes, electric connectors, multi-pin connectors, infant products where smooth surfaces are desired, such as bottle nipples, medical applications as well as kitchen goods such as baking pans, spatulas, etc. Often, silicone rubber is overmolded onto other parts made of different plastics.


While LIM is best used for short and long run part production, it can also be utilized in the final stages of the prototyping process as well, as the process permits engineers to experiment with different material configurations to fine tune the product before it is green-lit for production. Plus, since a mold needs to be created for the process to take effect, product developers can save time and money by using LIM for both final prototyping and production processes.


There are two main types of LIM process - injection molding of silicone rubber, or LSR, and injection molding of fluoro liquid silicone rubber, or F-LSR. The former is the most common method that product developers take in producing rubber parts while the latter type is used to craft more high performance parts in industries ranging from automotive to aerospace.




(800) 598-5274


We make science an art...

Liquid Silicone Rubber

Injection Molding

with in-house tooling & mold making

Custom LIM parts in complex or simple configurations for commercial and medical applications or harsh environments

ASH specializes in medical devices and aeropsace Thermoset Silicone parts. You can also overmold with silicone to create seals and finishes.

Small FDA approved medical devices are manufactured in liquid silicone- a thermoset process

Elasticity, and chemical resisitance are two reasons you need silicone rubber parts.

Silicone SUPERMOLD - Production Tooling with a lifetime guarantee

From purchase order to first article in 3 weeks in most cases. Spend “prototype dollars” on production molds designed to take advantage of production efficiencies within ASH Industries. SuperMold™ reduces costs and lead times for custom injection molds to process thermoplastic, silicone, or MIM components.  


At the same cost to you as a prototype mold, SuperMold™ uses tool steel to provide a production mold that is guaranteed for as long as you need parts. Our full tool shop allows quick turnaround to put parts in your hand when you need them.