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Alumilite Amazing Casting Resin - Opaque White

£17.95 - £149.95 (Inc. VAT)
£14.96 - £124.96 (Ex. VAT)
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The Alumilite Amazing Opaque White Casting Resin - cures and turns bright white in 10 minutes! The Amazing Casting Resin is a super-fast curing, general purpose, opaque-white urethane casting resin. Giving you a solid opaque white base, it takes dyes beautifully, and you can achieve vivid bright opaque colours. 

Amazing Casting Resin (also known and sold as Alumilite White) is an easy to use white urethane resin that creates a durable casting with perfect cosmetics and intricate details.

Its low viscosity and 1:1 mix ratio by weight make the Amazing Casting Resin extremely easy to use. The cured resin can be painted, stained, dyed, drilled, and carved.

This really is a super-fast curing resin - it begins to harden in about 3 minutes, and can be de-moulded after about 10 min! You'll see it harden in front of your eyes, the translucent yellow starts to change into an opaque white, it is fascinating to watch. Great if you are impatient. Once cured, it can be painted with acrylic paint, stained, drilled and machined.

Resin must be kept dry and in sealed bottles at all times.

Keep the caps of each resin bottle on tight at all times. Even during use, pour out what you need, then put the caps back on immediately. This will keep your resin in good working condition for as long as possible. 

This resin does not like moisture. Ensure moulds and tools are completely dry. Don't use with water-based dyes or colours, we recommend our Alumilite Dyes, or powder pigments, like Mica Powder Pigments


  • Final cured colours will be affected by the opaque white base. For example; a tiny drop of red mixed with the white will produce pink. But the more red you add, the redder and brighter the red it will be. You can get some great colour effects with this resin. It can make some great pen blanks as long as you can manage the fast working time.
  • If casting into small moulds, warm the mould first

For a translucent/transparent finish, look at our Amazing Clear Cast Resin instead.

Available in the following sizes:


US Fl.oz.

Approx weight

470ml 16 fl.oz 500gm
940ml 32 fl.oz 1kg
7.5 litres 2 US gallon 8kg

Volume/Weight comparison; the 940ml is 32 US fl.oz., this weighs approximately 1000 grammes.

Each kit consists of 2 bottles, for instance, the 32fl.oz kits comes as 1 x 16 fl.oz part A and 1 x 16 fl.oz part B, giving you a total of 32 fl.oz.

Mix ratio: 1:1 by volume

Please note the packaging is changing on this product, so it may vary from what is show in the pictures.


Product: Amazing Casting Resin
Color: White
Mix Ratio: 1:1 by weight or volume
Pot Life: 2 minutes
Demould Time (100 gram mass): 5-10 minutes
Mixed Viscosity (cps): 90
Specific Gravity: 1.05
Shore Hardness (ASTM D2240): 72 D
Shrinkage (in./in.): .006
Tensile Strength (ASTM D638, psi): 4500
Elongation (in./in.): 10%
Heat Deflection Temperature: 185º F

To ensure the longest possible shelf life once you get your product, we don't sit on stock for long periods. This means we can run out between deliveries. If you know you need the resin by a certain date, or must have a regular supply always available, please call us for a chat so we can discuss the best way of ensuring you always have the product you need.

Click here to view an SDS sheet for this product.

Click here to view the Technical Data sheet for this product.

Regarding health & safety, we always recommend doing your own research, and make your own decisions on any precautions you need to take. Read the SDS and get advice if needed. We suggest ensuring you have good ventilation, and protect your skin and eyes (use nitrile gloves only, don’t use latex with resin). If you work with a large amount of resin, or work with it often, you might want to invest in a VOC filtered face mask.

Due to Brexit the following countries do NOT allow imports of this item:

3 Reviews

  • 5
    The product is very easy to use and very good quality.

    Posted by Sue burgess on 7th Mar 2022

    The Company are a very good company to use too.

  • 4
    Resin white

    Posted by T-richardson on 15th Sep 2021

    Very good results but very fast working time

  • 5
    Alumilite Amazing Opaque White Casting Resin

    Posted by jean Evans on 15th Sep 2021

    Love it fast set makes multiple easy to do

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