Mold Release Technology
Mold
release technology: mold wash, mold lubricants and parting agents are
substances used in traditional technology for decades. When
applied onto
mold
cavity surfaces, they help to prevent melt (molten resin) from
sticking
to such
surfaces. This is called external mold release.
External Mold Release Agents
The
common components of external mold release substances are silicone
and flourocarbon compounds. These form a temporary barrier
that
prevent resin
from securing itself to surface crevices, etch
marks and pores.
This mold release process is dependant
upon repetitious application of mold release substances onto mold
cavity surfaces after every few cycles. But in molds with rough or
textured surfaces, complex
profiles or corners with tight-angles, mold release substances must be
re-applied after every single cycle.
Internal Mold Release Agents
Now,
let's discuss another type of Mold Release Technology: internal mold
release.
It is the method of adding mold release substances when resin
is being compounded.
When
this is done, resins become less sticky and release from
molds more easily. These types of substances are usally surface active
materials consisting of fatty alcohols\amides, esters and waxes
that usually migrate from surface to surface.
And
while this form of mold release needs no repeated application process,
it does have a downside. It readily coats the surface of the finished
part and prevents adhesion or bonding. Even after thorough washing, the
surface active materials in
the resin have a tendency to continually
seep out onto plastic surfaces.
Platings and Coatings
Platings
and coatings are primarily used for abrasive glass-filled and ceramic
compound resins. Though the rate of wear and tear is reduced, sticking
problems
still exist.
Traditional
mold release technology agents, mold wash, mold lubricants, mold waxes
and parting agents also do not significantly solve these problems.
Hard chrome platings are only used to
harden and smoothen mold cavity surfaces. However, electro-plating
replaces large pores with smaller pores. So parts still do
stick to,
and
get stuck in, molds.
Chemical Vapor Deposition (CVD) and Plasma
Vapor Deposition (PVD) also seek to harden and smoothen mold cavity
surfaces. And while there is an improvement compared to hard chroming,
these coatings are expensive and do not last long. As with hard
chroming, minute pores and etchmarks cause sticking problems.
For
re-coating, the remnants of the old coating must first be removed
before a
new coating can be deposited. This is both a difficult and
expensive process.
Nanomouldrelease
Nanomouldrelease is the new Mold Release Technology solution that
succeeds where others
have failed. It is a microscopic mesh-like coating adheres
to
substrate surfaces while repelling oil and water at the same time. It
is also gas permeable.
It
greatly reduces friction and the effects of abrasion by filling up all
pores,
etchmarks and cavities regardless of their size. When all these
surface
imperfections are filled up, resin cannot find points of
resistance on such
surfaces.
Nanomouldrelease allows resin to
glide over substrate surfaces, thereby
greatly minimizing friction and
the effects of abrasion. Mold release problems
such
as sticking and
parts-stuck-in-mold are also resolved. Sticking caused by
tight-angled
corner and complex corners are also resolved.
In some cases, Nanomouldrelease has enabled production cycles to go on for
more than 100,000 cycles
without the
use of mold release agents.
There are also no problems of cross-contamination, chipping or flaking.
Nanomouldrelease is the new effective means of mold release technology.
So stop using
mold wash, mold lubricants, mold waxes, parting agents today.
Use new
mold release technology.
Suceessful application with
Renowned Speaker customer :
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| A renowned Loud speaker manufacturer facing probelms with composite moulding. Production is running slow as part releasing is a major issue untill Nanomouldrelease was used afterwhich, the production rose double digit while failure rates plunged. | ||










