Frequently Asked Questions

Q. Is it possible to estimate how much a casting will weigh?

Q. Can you make a casting from my wax model?

Q. Can you cast directly from my Rapid Prototype models?

Q. Is it possible to estimate how much a casting will weigh?

A. Yes, please see our conversion table or contact us for help.

From	To	Calculation
Wax	Sterling Silver	x 10
Wax	9 Carat Yellow Gold	x 11
Wax	18 Carat Yellow Gold	x 16
Wax	18 Carat White Gold	x 16.5
Wax	Bronze	x 8
Wax	Platinum	x 22.5

Silver	9 Carat Yellow Gold	x 1.1
Silver	18 Carat White Gold	x 1.65
9 Carat Yellow Gold	9 Carat White Gold	x 1.1
9 Carat Yellow Gold	18 Carat Yellow Gold	x 1.4
9 Carat Yellow Gold	Platinum	x 2.1
14 Carat	9 Carat Yellow Gold	- 13.5 x 11
18 Carat Yellow Gold	Platinum	x 1.5
18 Carat White Gold	9 Carat Yellow Gold	x 0.688

Pewter	9 Carat Yellow Gold	x 1.6
Copper	9 Carat Yellow Gold	x 1.3
Bronze	9 Carat Yellow Gold	x 1.38

Steel	18 Carat Yellow Gold	x 1.875

Q. Can you make a casting from my wax model?

A. We are very happy to work with customers' own waxes. We can cast directly into the metal of choice or in the case of a hand carved wax that has taken many hours to create we would strongly reccommend that a silicone rubber mould is made of the wax before casting.

Q. Can you cast directly from my Rapid Prototype models?

A. We can cast directly from models produced by rapid prototyping. The best results are achieved with wax models that have either been milled or printed. Results with resin models can be variable. If in doubt we can make a cold cure silicone rubber mould of a resin model. We are experimenting with a new Very Low Temperature (VLT) vulcanising rubber that will allow us to make production vulcanised moulds directly from resin models.

Q. Do you have any tips on spruing?

A. We have posted a 'Quick Guide to Spruing' in pdf format. You can download it here.