FOR IMMEDIATE RELEASE
Compo-SiL®
– A Breakthrough in Overcoming the Low Surface Energy of Cured Silicone
Silicone
with a Polyurethane-based Modified Layer Allows Bonding with Surfaces
during Mass Production
Hsinchu,
Taiwan, November 17, 2020 - Experienced silicone products
maker, General Silicones (GS), is introducing its Compo-SiL®
technology
to the market. Compo-SiL®
solves the critical problem of the low
surface energy of cured silicone by enhancing the surface energy with
the help of an ultra-thin PU-based modified layer. This innovation
allows the process and bonding of cured silicone efficiently during
mass production with surfaces safely and in a lasting way.
Adhesion
Problems of Cured Silicone Rubber
Silicone is one of the bio-friendly and sustainable materials of choice
for many large volume applications in industries like health care,
electronics, automotive, aerospace, industrial assembly, building,
textile, etc. Despite that, the low surface energy (LSE) of 24 mN/m of
cured silicone rubber makes it difficult to use for good adhesion.
Finding an ideal solution is still a challenge. There is an essential
need for a bio-friendly silicone substrate with good
surface adhesion properties for diverse application areas.
Increasing
Silicone’s Low Surface Energy from 24mN/m to 38mN/m
Compo-SiL®
by General Silicones resolves silicone adhesion and bonding
problems from the lower surface energy of silicone by chemically
bonding silicone sheets with an ultra-thin polyurethane-based modified
layer. The custom patented technology of General Silicones binds the
modified layer to the silicone and therewith enhancing the surface
energy level to ~38mN/m.
Conventional
Activation of Low Surface Energy of Silicone
Current adhesive technologies and primers from bonding LSE silicone
with other surfaces have difficulty controlling reaction kinetics and
the chemical composition. Other surface pretreatment techniques,
including corona, plasma, flame, etc. can enhance the surface energy of
silicone surface, but have the disadvantages of durability, cost,
complexity and may even present environmental or safety issues.
Compo-SiL®
Bonding Strength
Standard test method for peel resistance was done internally by General
Silicones to evaluate the bonding strength of silicone with the PU
modified layer and with other adhesives (HMA, PUR, EVA, etc.).
For all the cases of different modified PU laminate with Compo-SiL®
,
tests by GS showed cohesive failure within the adhesive layer or
cohesive failure in the adherend, demonstrating the strong bonding
between silicone and
the modified layer of the Compo-SiL®
technology of General Silicones.
Customization
of the Silicone Layer of Compo-SiL®
GS offers a diverse series of silicone with unique properties for
various applications. With high expertise in silicone formulation,
several processing methods, and state of the art R&D. GS
customizes silicone properties according to customer demand and ships
globally. Color (transparent, translucent, or any), the hardness of
silicone material (25-80 shore A), thickness (customized), tensile
strength (30-100 Kgf / cm2), tear strength (10-30Kgf / cm), and
elongation (200-800 %) are all customized according to specification.
Silicone-based Compo-SiL®
series can:
- Bond to other surfaces where cured silicone substrates
cannot.
- Make the manufacturing process easier for printing and
lamination purposes.
- Reduce the use of solvent, primers, and other chemicals.
- Offer long-term durability.
- Provide various designs and customizations.
- Lower manufacturing costs.
For Compo-SiL®
introduction video, please visit the YouTube link
https://youtu.be/vsoK-YO3s-s
For detailed information on Compo-SiL®
,
the advantages and different
applications, please visit
www.compo-sil.com
About
General Silicones
General Silicones (GS) was founded in 1970 in Taipei, Taiwan, and is
now represented worldwide – including Europe, China, Japan, and South
East Asia countries. GS is not only a major distributor of silicone
materials but also an active silicone products manufacturer with ISO
9001, IATF 16949, and ISO 14001 certifications. The company has
manufacturing plants in Hsinchu, Taiwan; Wujiang, China; and Bac Giang,
Vietnam. With decades of experience in this field, GS has the ability
and capacity to provide a wide range of silicone products for many
industries, including medical, automobile, consumer products,
electronics, and IT. GS listed on Taiwan's emergent stock market in
2011 (TPEx: 4730). For more information about GS, please visit www.generalsilicones.com. For more
information on Compo-SiL®
,
please visit www.compo-sil.com
