Save up to 50% in raw material costs in comparison to self-bonding LSRs, by utilizing Chemlok 3Stream with regular LSRs.
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LORD Corporation
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Chemlok 3Stream Silicone Adhesion Additive
Chemlok 3Stream is an adhesion promoting additive that can impart self-bonding properties to non-self-bonding LSR and HCR. This is the most cost effective solution for LSR and HCR bonding, with up to 50% cost savings and the ability to bond to nearly all LSRs and HCRs.
LSR Self-Bonding Additive
Eliminate the need for expensive self-bonding LSRs, solvents, labor associated with the application of primers and long lead-time of self-bonding LSRs. Incorporate Chemlok 3Stream additive into your injection molding process by adding the additive via a standard third stream pump, similar to a colorant. Our teams have gone through extensive testing to achieve rubber tearing bonds. Our adhesion promoter for LSR is proven on many thermoplastics and clean metals.
LSR Cost Savings
Excellent Bonding Performance
Achieve rubber tearing bonds to thermoplastics and clean metals, without impacting LSR physical properties.
LSR Supply Chain Improvement
Utilize Chemlok 3Stream adhesion additive with regular LSRs, which are more abundant and readily available, reducing lead times. And, can be used with nearly all LSRs.
Improve Manufacturing Efficiency
Increase manufacturing efficiency by eliminating labor costs, as well as harsh solvents associated with traditional primers/adhesives systems.
LSR Applications
LSR Applications
Types of liquid silicone rubber applications
Automotive
Automotive
- Soft-Touch Components
- Seals & Gaskets
- Lens & Reflectors (or Optical Components)
Electronics
Electronics
- Cables
- Connectors
- Wiring Harnesses
Infant Care
Infant Care
- Baby Bottles
- Teething Rings
- Baby/Infant Toys
- Pacifiers
Medical
Medical
- Handles for Surgical Tools
- Medical Device Components
- Oxygen Masks
- Hearing Aids
Consumer Goods
Consumer Goods
- Consumer Electronics
- Wearable Technology
- Kitchen Utensils
- Textile Coatings
- Textile Screen-printing
What is Liquid Silicone Rubber?
Liquid Silicone Rubber (LSR) is a high purity two-part platinum-cured elastomer that is typically used in an injection molding process to form a part requiring precise dimensions. Due to its heat resistance, low temperature flexibility, chemical resistance and biological inertness, LSR is used in applications that span across multiple industries, including: automotive, electronics, infant care, medical, general industrial and consumer goods.
How to Bond LSR to Clean Metals & Plastics?
Bonding LSR to plastics and clean metals with current technology on the market requires primers or special self-bonding LSRs. Both bonding methods have significant drawbacks. Primers require extra process steps and the management of volatile solvents, while self-bonding LSRs or self-adhesive LSRs, suffer from high price, short shelf life and limited availability. However, Chemlok 3Stream is a new disruptive technology available enabling regular LSR to become self-bonding LSR, making it the best choice for bonding clean metals and plastics. Chemlok 3Stream additive is proven to bond to these substrates without changing the physical properties of the LSR.
New Adhesion Additive Technology Eliminates Expensive Self-Bonding LSR
Chemlok 3stream will improve the speed and cost of bonding LSRs to various substrates without having to purchase self-bonding LSR.
Tips on Using a New Adhesion Additive in LSR Molding
Learn about Chemlok 3Stream’s proven performance and find out tips for using this additive to optimize manufacturing processes.
Resources
Resources
New self-bonding properties of HCR additive eliminate need for adhesives and primers
Check out our white paper on how Chemlok 3Stream performed against some competitive solutions for self-bonding LSR.
Learn how to use Chemlok 3Stream from substrate preparation to selecting preparation methods.
Read through Chemlok 3Stream's technical properties, application methods and shelf life information.
Want to learn more about Chemlok 3Stream? Check out our informative brochure on how Chemlok 3Stream adhesion additive works.
Medical device manufacturers should carefully review and select the best bonding agents for their individual products ... continue reading.
Adhesive-Bonding LSR FAQs
Adhesive-Bonding LSR FAQs
Is a post bake required?
Is a post bake required?
With Chemlok 3S-912, no post bake is required and bond strength grows over time achieving rubber tearing bonds 1-7 days post cure.
How do I not bond my mold shut?
How do I not bond my mold shut?
When bonding to metals, you can bond to clean metals without bonding to the mold (the mold is not clean metal) - LSR has built-in mold release, so it seasons the mold as you run it. That is why Chemlok 3Stream will not bond to a seasoned mold.
If you're starting out with a fresh mold, use mold release and run it through a couple rounds to ensure the mold is seasoned.
How many silicone providers and durometers have you tested?
How many silicone providers and durometers have you tested?
We've looked at every major LSR supplier and Chemlok 3Stream works with most of them. We also tested durometers ranging from 30 to 75. If there is something outside of this range or a particular LSR grade you would like to know if Chemlok 3Stream is compatible with, talk to one of our experts. We can do in-house testing in our Erie, PA facility.
Can I mix the additive with my colorant instead of streaming it in separately?
Can I mix the additive with my colorant instead of streaming it in separately?
No - we don't recommend mixing the colorant with Chemlok 3Sream. We don't expect them to mix very well, so we advise that you add Chemlok 3Stream and your colorant through a separate pumping system.
Does Chemlok 3Stream work with HCR?
Does Chemlok 3Stream work with HCR?
Yes, Chemlok 3Stream works with both platinum cured and peroxide cured HCRs. Chemlok 3S can be milled into HCR much like any other liquid additive to impart self-bonding properties.