Page 27 - Sorcha Mathews

MATERIAL
RUBBER GRIP
Manufacturing Process
The following process outlines how a
silicone rubber grip is injection moulded.
1. A grip mold is made and fitted into a
rubber injection molding machine.
2. A part A and Part B silicone are
pumped via seperate hoses into a
static mixer before being fed into a
screw and barrel.
3. Once the silicone is in the barrel a
shot of the cool mixed silicone
advances to the mold and the nozzle
is sealed firmly.
REPLICATION
Step 1
Roll out polymer clay to a 3mm
thickness on a corn floured
surface, then evenly press
desired patterned material onto
Step 2
Trim the clay to desired length
keeping foling in mind.
Polymer clay
References: https://sciencing.com/quick-facts-on-rubber-13636294.html
294.html https://www.youtube.com/watch?v=B1xwun0P5LI&ab_channel=SofeastLtd
INFORMATION
Prevalence
Rubber is a common and
useful product because it is
abrasion, heat, water and
steam resistant, resilint and
is hard to tear. The main
association we have with
rubber is tyres but it has so
many other applications.
It is commonly used on
products that require a
good grip when being used.
4. The nozzle shut off valve opens
and a shot of cool liquid
silicone is injected into a hot
clamped mold.
5.
The nozzle shut off valve then
closes and the barrel retracts
from the mold.
Note: Injection molding silicone
rubber is different from injection
molding polymers because rubber
goes into a mold cool and is heated
then sets, whereas polymers go
into a mold hot then set when cool.
Step 3
Place the clay on wooden or
metal mold and heat in oven to
set, as per clay instructions.
https://homeguides.sfgate.com/rubber-recyclable-79758.html
Historical Use
Rubber was first used by
Native Americans around
1600 BC to make balls and
waterproof boots. Europe-
ans later began to use
rubber to waterproof
goods, then Brazil and East
Asia became well known for
their rubber trade between
the 1700’s and 1900’s.
Step 4
One model has cooled apply
spray paint to finish. Primer is
not neccessary.
Contextual Use
Rubber is used extensively
for a variety of consumor
products and industrial
purposes. In this context
rubber is used for adding
grip to products like tools
and machinery such as
hammers, guns, steering
wheels and handlebars,
reducing the likelihood of
these products slipping
from ones hand.
PRODUCTION
https://sciencing.com/quick-facts-on-rubber-13636
Faux Replication Reflection/ Trial + Error
Trial 1 Learning
I set out to create a textured T his could possibly work better
rubber grip through finding an on flat surfaces, but for now the
already textured surface, attempt with paint and pressing
applying paint to it, and pressing on patterns is abandoned.
it onto another surface to get a
printed pattern, much like lino. I
rolled paint onto some viny
fabric with a hexagonal pattern
and pressed it onto acrylic.
Reflection
The result was uneven dots that
stretched over curved surfaces.
Trial 2 clay back into a ball before
I decided the quickest way to rolling i made little air pockets.
these air pockets expanded in
replicate the texture i desired
was through using polymer clay the oven during the hardening
process and resulted in lumps in
and getting an impression of an
already textured surface. I rolled the final piece.
out the clay and had a few
attempts of pressing some viny Learning:
fabric with a hexagonal pattern When using polymer clay use
onto it. This worked but it stick cornflour to assist rolling out
to it a bit when pulling it away
and knead as little as possible to
from clay. I then used cornflour avoid introducing air pockets.
when rolling it out and it
worked a lot better.
Reflection
Next time using clay i will use
cornflour straight away when
rolloing it out so i dont have to
keep re rolling it, because every
time i did this and kneaded the
Sorcha Mathews C00241949