Silicone Rubber 1:1 Mould Maker 10L kit, two 5L jerry-can style bottles with handles showing Part A and Part B platinum cure silicone
Pink silicone mould tray cast from Silicone Rubber 1:1 Mould Maker, showing gear-shaped cavity impressions
Hands flexing a cured pink Silicone Rubber 1:1 Mould Maker piece, demonstrating its flexibility
Peeling a large cured pink silicone mould away from a plaster master model
Assortment of colourful silicone craft and baking moulds in various shapes

Silicone Rubber 1:1 Mould Maker | 10L Kit

$325.00

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Silicone Rubber 1:1 Mould Maker | 10L Kit

A platinum cure (addition-cure) silicone rubber that mixes 1:1 by volume and reproduces the finest surface detail with very low shrinkage. Being platinum cured, it's food grade and skin-safe, and keeps its shape over years of repeat use — ideal for impression moulds, masks, soap and candle moulds, and jewellery or prototype parts cast in conjunction with Solid Cast 660 Polyurethane.

Kit Includes

1 x 5L Part A Bottle 1 x 5L Part B Bottle

Product Details

Kit Size
10L (5L + 5L)
Mix Ratio
1:1 by volume
Pot Life
20 – 30 minutes @ 25°C
Cure Time
2 hours @ 25°C
Shore Hardness
30A
Coverage
~10 sq mtr @ 1mm depth
Temperature Resistance
Up to 220°C

Technical Data

Colour
Pink
Shore Hardness
30A
Tensile Strength
4.5 MPa
Elongation
550%
Tear Strength
25 kN/m
Viscosity (A/B Mixed)
7000 mPa·s

Key Features

Platinum cure silicone Food grade & skin-safe Low shrinkage Long mould life Low viscosity High-detail reproduction

Common Uses

Impression moulds Masks Soap moulds Candle moulds Jewellery & prototype parts Garden ware & precast building elements

How to Use

1
Measure equal parts of Part A and Part B by volume — for example, 2.5L Part A to 2.5L Part B.
2
Mix thoroughly in a straight-sided, flat-bottomed container with a flat ruler-shaped mixing stick, scraping the sides and base of the container.
3
Pour over your master model within the pot life window (20 – 30 minutes @ 25°C).
4
Demould in around 2 to 4 hours @ 25°C. For large casting moulds, leave to set for at least 12 hours before demoulding.

Why Platinum Cure?

Platinum cure silicones use an addition-cure chemistry (catalysed by platinum) rather than the tin-based condensation cure found in cheaper rubbers. That means very low ongoing shrinkage, so fine detail stays accurate over the life of the mould, and a much longer library life — platinum cure moulds can be reused for years, compared to roughly 12 months for a typical tin-cure rubber. It's also FDA-compliant for food and skin contact, which is why it's suited to soap and candle moulds as well as life-casting work. One thing to note: platinum cure silicone won't cure properly against sulfur-based clays (such as sulfur-cure plasticine) — seal a sulfur-based model with an acrylic spray first, or use a sulfur-free modelling clay.

Storage & Safety

Wear protective gloves and glasses when mixing and using. Uncured material can be removed with a solvent or methylated spirit followed by washing with warm soapy water. Always wear a mask when using any solvent cleaner.

Frequently Asked Questions

What is platinum cure silicone, and why does it matter?+
Platinum cure silicone uses an addition-cure reaction catalysed by platinum, giving very low shrinkage, a much longer mould life than tin-cure rubbers, and FDA-compliant food and skin safety.
What's in this kit and what's the mixing ratio?+
This 10L kit contains 5L Part A and 5L Part B, mixed 1:1 by volume.
How long does it take to cure and demould?+
Pot life is 20 – 30 minutes at 25°C, it cures in around 2 hours, and pieces can typically be demoulded within 2 to 4 hours at 25°C.
Is it safe for food or skin-contact moulds?+
Yes. Being platinum cured, it's food grade and non-toxic once fully cured, making it suitable for soap and candle moulds and life-casting work. Avoid sulfur-based modelling clays for the master, as sulfur can prevent platinum silicone from curing.
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Reviews

Customer Reviews

Based on 16 reviews
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D
Darcy De Silva
Great price, great customer service. Would like another color.

I had an issue with Aramex on delivery (they're awful) however Solid Solutions service was great. The price was great, I just would like a non pink solution, as using pigments on the hot pink, your eyes get calibrated to the color and you lose some a lot of visual color objectivity.

I do not like the use of AI images on the site. Would love the company to not use AI slop instead of sourcing from photographers, but c'est la vie.

I
Ian Dudley
Great value for money

It does exactly what it says it does. I use it to make mother moulds for slipcasting.

D
Dayna Fisher
Awesome product, even better customer service

Bought some silicone but received the wrong product- I was really impressed by how easy it was to resolve the issue with the business. Thank you very much- as promised I’m back purchasing my next lot from you :).

H
Hayden
No complaints

Wanted 10L silicone kit, and thats what I got. It worked fine so I'm happy.

V
Vanessa Hogan
Pink silicone rubber

Found it really easy to use and has great detail in the moulds!

D
Denys Holoborodko

Silicone Rubber 1:1 Mould Maker | 10L Kit

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