Silastomer P35 Addition Cure Silicone Rubber

Premium Platinum Cure Silicone for Professional Zero-Shrinkage Moulds

Silastomer P35 addition cure silicone delivers the ultimate in mould precision and longevity. The professional choice for applications demanding perfect dimensional accuracy and maximum mould life.

• Zero shrinkage - perfect dimensional accuracy
• Longest mould life - years not months
• Skin-safe - ideal for life casting
• Simple 1:1 mix ratio by weight

Perfect For

• Life casting & prosthetics - skin-safe for direct contact
• Special effects - professional film/theater applications
• Precision prototyping - dimensional accuracy critical
• Wildlife teats & food moulds - food-safe approved
• Master patterns - long-term production moulding

Key Advantages

• Zero shrinkage vs 0.1-0.5% in standard silicones
• 10+ year mould life vs 1-2 years maximum
• No cure odors - clean curing process
• Heat resistant - stable at high temperatures

Technical Specs

• Mix Ratio: 1:1 by weight (50/50)
• Working Time: 45-60 minutes
• Cure Time: 8-24 hours (or 30 mins at 65°C)
• Hardness: Shore A 35
• Temperature Range: -65°C to +200°C

Important Notes

⚠️ Avoid these materials (cause cure problems):

• Sulfur clays, latex gloves, tin cure silicones, some 3D resins

✅ Great for casting: Polyurethane, epoxy, polyester resins, plaster, wax, metals

Pro Tip: When unsure, seal pattern with acrylic lacquer first.

Sizes

• 1kg Kit - Small projects and testing
• 5kg Kit - Professional workshop size
• 20kg Kit - Production applications
• Bulk sizes - Contact for pricing