Addition Cure (Platinum)
Addition cure silicones, also known as platinum cure silicones, are 2-part silicones where either skin contact or dimensional stability, food requirements or heat resistance is required. They have without doubt the longest lifespan of all the silicones available.
They also have minimal to zero shrinkage so are ideal when accuracy of casting is required weeks or months later. They are great for mould making for a variety of materials and industries, from epoxies, polyesters, plaster, and also low melting metals where heat tolerance is required. Industries are equally varied from rapid prototyping to Formula 1 or SFX applications, where a skin-safe silicone is needed for life-casting. Please take advice on correct release agents prior to pouring.
With the fantastic mechanical properties platinum cure silicones offer, they do need to be used carefully to avoid inhibition. Inhibition is when a platinum cure silicone doesn’t fully cure due to a form of contamination on the surface of what you are attempting to mould. Though it may look fully cured on the surface, when you separate it from the item you were moulding you will find a tacky surface - namely inhibition.
This is something you must be aware of when using platinum silicones and care must be taken - a good example is latex or moulding directly from a clay with sulphur. Both of these will cause the Platinum Cure silicone to inhibit. There are a number of solutions available to avoid this from happening but please if in any doubt contact a member of Mouldlife’s technical team if unsure at any time.
Extra-soft silicone for realistic prosthetics with fast demould and high strength.
Ultra-soft silicone for realistic prosthetics with fast cure and adjustable softness.
Fast-curing platinum silicone for soft, skin-like prosthetic and special effects applications with excellent workability.
Prosthetic Deadener for Platinum Silicone to soften the Shore Hardiness
Fast-curing prosthetic silicone system with low viscosity, strong bonding, and adjustable softness for realistic skin effects.
Silicone softener for Pro-Gel 10, allowing adjustable flexibility for ultra-realistic, skin-like prosthetic effects in SFX applications.
A fast-setting, platinum-cure silicone rubber with a convenient 1:1 mix ratio, offering quick demould times, good working time, and versatile use for both pourable and brush-on moulding applications.
A two-part addition-cure RTV silicone with excellent tear strength and detail reproduction, ideal for precision mould making and duplicating intricate models with high durability and thermal resistance.
Snap-Sil platinum cure silicone for life casting and mould making, offering skin-safe, thixotropic application with high detail and durability.
A translucent, ultra-low viscosity silicone elastomer with a fast cure and exceptional strength, ideal for rapid mould making and applications requiring durable, high-performance results.
A low-viscosity RTV silicone rubber with high tear strength and excellent detail reproduction, ideal for precise mould making, prosthetic work, and applications requiring strong, stable, and easy-release performance.
A versatile, low-viscosity platinum silicone offering excellent clarity and tear strength, ideal for mould making, prosthetics, and animatronics, with adjustable hardness for greater control across applications.
Silicone deadener for PlatSil Gel, creating ultra-soft, skin-like prosthetics with reduced density and realistic feel for SFX applications.
Silicone hardener for PlatSil gels, increasing Shore hardness and working time for stronger, more durable moulds and prosthetic applications.
A low-viscosity, platinum-cure silicone rubber with a convenient 1:1 mix ratio, offering good working time, easy mixing visibility, and reliable performance for both pourable and brush-on moulding applications.
A high-performance platinum-cure silicone rubber with excellent working time and dimensional stability, ideal for detailed mould making and casting applications with both pourable and brush-on versatility.
Clear, low-viscosity silicone with high strength, fine detail accuracy, and fast curing.
Two-part clear silicone that cures to a glass-like finish, ideal for safe, breakable prop effects.
One-part silicone sealant that cures to a flexible, durable rubber with strong adhesion and wide temperature resistance.
Two-part silicone elastomer that cures to a clear, flexible, and durable material, with optional heat acceleration.
Translucent silicone with high tear strength, low shrinkage, and excellent detail for flexible mould making.
Translucent silicone elastomer with firm 40A hardness, ideal for durable moulds and rapid prototyping.
Translucent platinum-cure silicone with a 1:1 mix ratio and durable 43A hardness.
Fluid moulding silicone designed for casting polyurethane, epoxy and polyester resins as well as wax and polyurethane foams.
High-hardness silicone with excellent strength and dimensional stability, ideal for detailed mould making.
One-part flowable silicone sealant that cures to a flexible, durable rubber with strong adhesion and excellent temperature resistance.
Low-viscosity, one-part silicone coating with excellent adhesion, ideal for sealing, priming, and painting silicone surfaces.
Clear, breakable silicone shards for safe, realistic glass effects in props and SFX makeup.
Cured Siliglass giving you an ice effect great for SFX
A two part, addition cure liquid silicone system that cures to a milky white translucent, A15 Shore rubber.
Designed for various applications in mold making and casting processes
ML Clear 40 Silicone Rubber is a two-part, room-temperature curing silicone designed for high clarity and easy pouring thanks to its low viscosity. It offers a 30-minute working time, a fast 6-hour de-mould, and a simple 1:1 mix ratio. With a Shore 40A hardness, it is well suited for a wide range of mould making applications.
Extremely quick, easy, and safe way to create moulds with excellent fine detail reproduction in less than 10 minutes
An ultra-soft, platinum-cure silicone rubber designed for high-end special effects, prosthetics, and lifelike mouldings.






















