Buying guide · Craft & making
Match the silicone kit
to your first mould.
Three platinum-silicone options for small craft moulds, compared by batch size, working window, cure speed and the accessories that are genuinely useful on a first pour.
Quick answer
The short answer
The BBDINO 600 g kit is the sensible first buy for one or two modest open-face moulds. Its equal-volume mix is approachable and the batch is small enough to limit waste.
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Choose LET'S RESIN when a short published cure time matters and you are ready to work efficiently within its stated 30-minute window.
- 02
Choose the Nicpro kit only when you have calculated a genuinely larger volume; unused mixed silicone cannot be put back in the bottle.
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Platinum silicone can remain sticky against incompatible masters, sealers, clays or recently printed resins. Run a small test cure first.
How we chose
How we chose
Array
The picks
The silicone mould-making kits worth buying
Estimate the cavity and mould-box volume before choosing. More silicone is useful only when the planned wall thickness and safety margin actually require it.
BBDINO Super Elastic Silicone Mould Making Kit 600 g
Best for: A beginner making one or two modest open-face craft moulds
The 600 g quantity is enough to learn box building and pouring without committing to a large, expensive batch. Equal-volume mixing is approachable when the measuring vessels are straight-sided and clearly marked.
- Beginner-scale quantity keeps the first experiment contained
- Equal-volume two-part system avoids a complex ratio calculation
- Flexible formulation is suitable for releasing detailed craft masters
- Fewer verified accessories than the larger Nicpro set
- A 600 g pack can be too small for deep or wastefully oversized mould boxes
LET'S RESIN Silicone Rubber Mould Making Kit 580 g
Best for: Beginners who can prepare fully before mixing and want a same-day demould
LET'S RESIN publishes unusually specific planning figures for this size: a 1:1 by-weight mix, 30-minute working time and four-hour cure at 25°C. That clarity makes the workflow easier to schedule.
- Clear published weight ratio reduces measurement ambiguity
- Four-hour stated cure at 25°C suits a compact same-day project
- Thirty-minute working time gives a prepared beginner room to mix and pour
- Slightly smaller total quantity than the BBDINO kit
- Explicitly unsuitable for food moulds according to the brand
- Faster cure can become stressful if the mould box is not ready
Nicpro 74 oz Platinum Silicone Mould Making Kit
Best for: A planned larger mould or several small moulds where the included setup accessories will be used
The 2200 ml class quantity is paired with cups, sticks, gloves, a table covering and reusable housing components. For a maker with measured projects ready, that reduces separate shopping and supports repeat pours.
- Substantially more material for larger or repeated moulds
- Included housing and consumables reduce first-workspace setup
- 20A platinum silicone is positioned as a flexible general craft-mould material
- Much higher upfront cost than the two small kits
- Excess quantity encourages oversized batches and avoidable waste
- Accessory value depends on whether the included housing fits the planned master
Mould planning
Avoid the expensive first-pour mistakes
Good moulds begin with compatibility and volume checks, not with faster stirring.
Sources
Sources and research notes
Exact listings and supporting technical material were checked on 14 September 2026. Cure claims are manufacturer figures and vary with temperature, mass and contamination.
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01
The Hobby Library — Silicone mould making
Beginner overview and starting point for the BBDINO, LET'S RESIN and Nicpro candidates.
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02
LET'S RESIN UK — Silicone Rubber Mould Making Kit 580 g
Brand product page used for the 1:1 by-weight ratio, 30-minute working time, four-hour cure claim at 25°C and stated non-food-mould limitation.
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03
Nicpro — 74 oz Silicone Mold Making Kit
Brand page used to cross-check the 20A platinum silicone, total size and included housing, cups, sticks, gloves and table covering.
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04
Smooth-On — OOMOO 25 and 30 Technical Bulletin
Independent manufacturer technical reference used to reinforce exact ratio, thorough mixing, surface preparation and narrow-stream pouring principles.
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05
Easy Composites — Silicone Mould and Resin Casting Kit guide
UK technical guide consulted for mould-box planning, sealing, release and staged casting workflow.
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06
Reddit r/ResinCasting — Silicone kit discussion
Community discussion used to surface differing durability experiences and the importance of matching hardness and chemistry to the project.
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07
Reddit r/moldmaking — Platinum silicone inhibition
Community troubleshooting used to identify master-material compatibility and test cures as recurring beginner concerns.
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08
Amazon UK — BBDINO 600 g Silicone Mould Making Kit
Exact-ASIN UK retail listing checked for kit identity, stated equal-volume mix and current availability.
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09
Amazon UK — LET'S RESIN 580 g Silicone Mould Making Kit
Exact-ASIN UK retail listing checked for product identity and availability; seller and price can change.
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10
Amazon UK — Nicpro 74 oz Silicone Mould Making Kit
Exact-ASIN UK retail listing checked for the larger kit identity, accessories and current availability.
Open source
Guide information and links checked 14 September 2026.