Platinum Cured Silicone Rubber

Platinum Cured Silicone for Precision Mold Making

A higher-performance silicone range for buyers who need lower shrinkage, better dimensional stability, and cleaner detail reproduction in demanding mold-making projects.

Choose the right platinum direction based on what matters most in your process:

For high-detail molds, selected food mold projects, and rapid prototyping.

WHY THIS PAGE EXISTS

When Platinum Cure Makes More Sense？

Platinum cure silicone, also called addition cure silicone, is usually the better direction when lower shrinkage, better dimensional stability, and cleaner detail reproduction matter more than the lowest initial cost.

It is often chosen for high-detail molds, repeated mold use, selected food mold projects, and precision-led applications where mold performance and consistency matter more than using a more general-purpose system.

Choose Your Platinum Direction First

Translucent Platinum Cure Silicone

The standard professional line for buyers who want practical platinum performance in high-detail mold making.

Transparent / Clear Platinum Cure Silicone

The better direction when mold visibility helps with cut-line judgment, fill observation, alignment, or premium presentation.

Cure Inhibition Risk

Avoid Platinum Cure Problems Before They Become Failed Tests

Platinum cure silicone rubber can be sensitive to certain contaminants.

If your master pattern contains sulfur clay, latex, some paints, uncured resin, or unfamiliar surface coatings, curing may be affected. That is why a small test cure is strongly recommended before full pouring.

Handled correctly, this is manageable. The real risk is not platinum cure itself, but starting a project without checking compatibility first.

Grade Comparison by Series

Grade	Hardness	Viscosity (mPa.s)	Tear Strength (kN/m)	Best For
TL-10	10±2	2000±1000	≥18	soft molds and easier release
TL-25	25±2	4000±1000	≥26	general mold making
TL-40	40±2	9000±2000	≥22	firmer support
TL-60	60±2	18000±2000	≥8	high-hardness applications

Grade	Hardness	Viscosity (mPa.s)	Tear Strength (kN/m)	Best For
CL-10	10±2	6000±1000	≥8	soft clear molds
CL-20	20±2	10000±1000	≥12	balanced clear applications
CL-30	30±2	15000±2000	≥14	general clear mold making
CL-40	40±2	20000±2000	≥10	firmer clear molds

Grade	Hardness	Viscosity (mPa.s)	Tear Strength (kN/m)	Best For
TP-10	10±2	6000±2000	≥6	soft transparent molds
TP-20	20±2	10000±3000	≥10	balanced transparent applications
TP-30	30±2	15000±3000	≥12	general transparent mold making
TP-40	40±2	20000±5000	≥8	firmer transparent molds

Need the full technical data? Download the TDS or ask us to recommend the right series based on mold geometry, clarity needs, and production goals.

Download the full TDS →

Best-Fit Applications

Resin Molds

For detailed resin casting where low shrinkage, clean surface reproduction and easier demolding are important.

Food Mold Projects

For selected food-related mold projects where platinum cure options and document support may be required.

Rapid Prototyping

For prototype casting, small-batch trial parts and detailed master models that need better dimensional stability.

Precision Casting

For molds that require stable dimensions, fine detail reproduction and lower shrinkage during repeated casting.

Transparent or Cut-Line Visible Molds

For molds where transparency helps with cutting, alignment, inspection or complex demolding.

High-Detail Master Models

For complex masters, fine textures, small details and molds where surface accuracy matters more than the lowest material cost.

How-to Articles

What Causes Cure Inhibition in Platinum Silicone?

Platinum Cure vs Tin Cure Silicone: Which One Should You Choose?

What is Platinum Silicone? Is It Body Safe?

FAQs

Is platinum cure always better than tin cure?

Not always. Platinum cure usually offers better performance in certain areas, but tin cure may still be the better fit for more cost-sensitive or general-purpose projects.

What causes platinum cure failure?

Surface contamination, incompatible materials, and poor test practice are common reasons.

How do I choose between translucent and transparent / clear?

Choose translucent when practical platinum performance is the priority. Choose transparent/clear when higher mold visibility adds real process value during pouring, cutting, or alignment.

What is the best starting series if I am testing for the first time?

If visibility is not a key process need, translucent is often the safer starting direction. If visual control matters during mold work, transparent/clear may be the better choice.

Can platinum silicone rubber be used for food molds?

Suitable grades may be considered depending on the application and required documentation. Always confirm before sampling or production.

Need a platinum cured silicone recommendation?

Send us your application details and we will suggest a suitable grade for testing.