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Frequently Asked Questions - Moulds
Please
find following our list of frequently asked questions (FAQ's)
regarding our moulds and mould making techniques.
Q:
How do we make our moulds?
A: We often get asked this question as neither Joan,
Stef, Adam, or myself are what you could call a sculpturing
genius. It took us over 12 months working hard to modify the
industrial production methods that we use to make hobby and
professional style vacuum formed moulds.
The usual production method for making this type of mould,
is to start off by sculpting your original in potters clay
or one of the newer air hardening or oven hardening clays.
Then making a plaster or RTV rubber mould of the finished
sculpture. A casting of this mould is then made in either
aluminium resin or Drystone or Hydrostone gypsum and mounted
up for future vacuum forming. This is a skilled process that
can take weeks to finish.
By taking small steps and modifying as you go you can achieve
results that are not dissimilar to the work of a professional
sculptor. Car bodies are set up for manufacturing by producing
models and modifying as you go till a final design is approved
for manufacture.
We sculpt a working model, make a vacuum formed mould, cast
an intermediate model, refine it, alter it slightly, make
another mould refine it again until we are satisfied with
the result and then and only then do we make our production
model for future vacuum forming.
We also work from sketches, drawings and photographs of proposed
moulds using a modified industrial CAD/CAM program. It cost
some tens of thousands of dollars and we live in hopes that
one day it may begin to pay for itself. We worked on it for
some 12 months before opening for business to adjust it to
our proposed method of production and it is only now beginning
to show that our time was not wasted.
Basically we take a 2D flat sketch, clean it up, modify it
and give it a 3D appearance with the tools built in to the
program. Then we rastorise or vectorise it, calculate a machining
path and then send it to our CNC for final processing before
vacuum forming-and if this all sounds a bit over the top,
it is!
If you look closely at our latest moulds you will see a much
greater degree of detail than in the usual imported moulds.
We are continually raising our production standards and we
hope it is beginning to show. One of our latest moulds took
48 hours machining time for a job that normally would take
4 to 6 hours. And this for a hobby mould! Job satisfaction
is what it is, at least that is what you call it when you
can't justify it cost wise.
Q: Are you ever out of stock
of one of your products?
A: Except for a limited showroom display stock, we
manufacture all of our moulds after receipt of your order
so we should never be in a position not to be able to supply
you.
The Supercast latex range however is imported from England
and many of the mould making materials are imported and could
be out of stock for limited periods. We remove any item O/S
from our website on a daily basis. We will contact you by
email to see if you would like the item placed on backorder.
Q:
Do you have a showroom?
A: We occupy industrial factory premises at 22A Hearne
Street Mortdale and have a small area set aside for display
and direct sale from 8:30am - 4:30pmpm Monday to Friday. You
are welcome to visit us at any time.
Q:
Are the moulds reusable?
A: Treated with care our vacuum formed moulds and latex
moulds will last for years and produce many castings. If latex
is exposed to continuous heat and sunlight, the mould may only
last for 12 months before starting to deteriorate.
Q:
Are your moulds suitable for fetes
or plaster parties?
A: A very large number of our hobby moulds are used just
for this purpose. Many fetes use our moulds and add a few new
ones each year to add variety. Get a volunteer, usually a retired
person to pour the moulds and the rest is pure profit. A wonderful
fund raiser and immensely popular with the children.
Q:
What are latex moulds and what are
they used for?
A: Latex rubber moulds produce a 3D object rather than
a plaque or flat backed object such as is produced using vacuum
formed plastic moulds.
They are much more difficult and labour intensive to produce
and consequently are much more expensive than plastic moulds.
The plaster is poured into the latex mould and when hard the
mould is removed by pulling off much the same way you would
remove a sock from your foot.
We have available a kit, complete with everything you need to
make latex moulds available on our eBay
Store.
Q:
What and where can I sell my finished
plaster and concrete ornaments?
A: This proved to be too big and important a subject
to just answer briefly - so we compiled a book for concrete
that is listed on our website and are preparing a similar publication
for plaster - which will be listed when completed.
The idea was "We tell all" all the trade secrets from making
the product and decorating and then making money from all your
good work.
Those who take the time and labour to become professionals in
this field are making good money from their efforts. It's one
of the fields where "Big Business" cannot compete - the local
producer has all the advantage. No freight costs, low material
costs and so very high profit margins.
We intend to provide all the information we can to help the
"start up" businesses in this field. Watch our newsletter and
websites. For our free newsletter email us at newsletter@aldax.com.au
and leave your name and email address or complete the easy signup
form here.
Q:
How many pieces can I pour from my
mould?
A: With vacuum formed moulds this greatly depends on
the flexibility required and the thickness and type of plastic
used. The thicker the plastic the longer the life. For our hobby
moulds we use 0.5 to 1.00mm plastic while for our professional
concrete moulds we use thicker ABS. Even our thinnest plastic
hobby moulds will last for years and with care produce many
dozens of casts. Our production moulds will yield 100's of castings.
We have yet to wear one out.
Q:
What type of plaster do you use and
where do you get it?
A: There are many different types of plaster made from
the coarse builder's Plaster of Paris to pottery and dental
plasters. All have their uses. The plaster we recommend and
use is called casting plaster and is manufactured by Boral and
C.S.R
This plaster has an ingredient added that hardens the surface
and gives a beautiful finish. The risk of chipping is reduced
and the surface is ideal for decorating with hobby acrylic paints.
It is usually available from local plasterboard suppliers and
if they don't stock it, they can order it in for you. We can
supply this idea by courier - but freight costs are such, local
supply is the preferred. Contact us for information on how to
mix and pour casting plaster.
Q:
What do you use to decorate plaster
and decorate concrete ornaments?
A: For plaster we recommend sealing with an acrylic sealer
either spray or brushed and using hobby acrylic paints to decorate
- followed by another spray of the acrylic sealer. Concrete
is usually antiqued by brushing the finished ornament with a
metallic oxide mixed with water and then wiping off the colour
on all the raised portions with cloth to leave the colour in
the recesses.
Further information is available on our new website www.moulds4concrete.com.au.
Ordering
and Payment System
Q:
What types of payment do you accept?
A: Credit cards including Master card and Visa - Pay
Pal - Personal Cheque - Money Orders - or direct debit into
our bank account which is Westpac Rockdale NSW BSB - 032 057
Account Number 239801.
If you are uncomfortable with having your credit card details
online; (our site is secure with 128 bit encryption) you may
phone us during business hours 8:30am - 4:30pm Monday to Friday
on 02/9533 9555 or internationally 0061 2 9533 9555, making
sure you include your name and the delivery address with quantity
and stock number for the item ordered.
Payment details should include your full card number, expiry
date and name on card.
You can also fax your order to 02 9533 9955
If ordering by email Do Not leave your card details as it's
not secure.
Q:
How long does it take to receive my
order?
A: We endeavour to ship all orders within 24 hours of
receipt of your payment. It takes 3-4 days for Australian shipment
to arrive. 5-10 days for the UK and USA. Most other countries
within 14 days.
Q:
Do you offer quantity pricing?
A: You are buying direct from the manufacturer. There
is no wholesaler involved. Our mould prices are trade prices
less the following overriding discounts for quantity buyers.
10-19 moulds Less and additional 5% discount
20-29 - 10% discount
30-39 - 12% discount
40-49 - 15% discount
50 & over - 20% discount
Q:
Do you ship your goods Worldwide?
A: We endeavour to give you as close a freight estimate
as possible with each item or range of items for standard post.
Some Resins in the fiberglass mould making section cannot be
sent by post and require courier delivery.
Q:
Do you ship worldwide?
A: Yes, we post to all countries worldwide. Our hobby
moulds are light and cost little to post. Please email for postage
rates. |