Dalchem SRT30 Condensation Cure Silicone - Our Most Popular Moulding Rubber
SRT30 tin cure silicone - Our most popular moulding rubber. Easy mixing, forgiving formula, great for beginners & pros.
Our Most Popular Silicone Rubber - Perfect for Beginners & Professionals
SRT30 condensation cure silicone is the "workhorse" of the moulding industry. Trusted by thousands of Australian makers for its reliability, ease of use, and excellent value for money.
- Foolproof mixing - add blue catalyst until even blue color
- Less sensitive - won't inhibit like platinum cure silicones
- Excellent detail capture - perfect for intricate moulds
- Great value - professional results without premium pricing
Why SRT30 is Our Customer Favorite
Beginner-Friendly
- Visual mixing guide - mix until even blue, no streaks
- Forgiving formula - less likely to fail from contamination
- Add 3-5% catalyst (flexible ratio vs exact measurements)
- Known as the "work horse" of the industry for performance and economy
Professional Results
- High tear strength maintains original form and resists tearing
- Excellent detail reproduction for intricate patterns
- Reliable production moulding capability
- Compatible with most casting materials
Perfect Applications
- General moulding projects - the go-to choice for most applications
- Production casting - reliable for multiple part production
- Art & sculpture - captures fine artistic details
- Prototyping - cost-effective for development work
- Architectural restoration - reproduces decorative elements
- Special effects - film and theater props
Technical Specifications
- Catalyst Ratio: 3-5% (flexible mixing ratio)
- Shore Hardness: 30A (firm yet flexible)
- Working Time: 30-45 minutes
- Cure Time: 8-24 hours
- Color: Cures opaque blue-grey
- Tear Strength: High - excellent durability
Casting Compatibility
Great for casting:
- Polyurethane resins and foams
- Epoxy resins
- Polyester resins
- Plaster and concrete
- Wax and soap
- Low-melt metal alloys
❌ Not recommended for:
- Clear casting resins (causes cloudiness)
- Food contact applications
- Direct skin contact
Simple Mixing Process
Easy Visual Mixing:
- Add blue catalyst to white silicone base (3-5%)
- Mix thoroughly until completely even blue color
- No white streaks = perfectly mixed and ready to pour
- Pour and wait - cures overnight at room temperature
Pack Sizes
- 1kg Kit - Perfect for small projects and testing
- 5kg Kit - Most popular size for workshops
- 20kg Kit - Production and commercial use
- Custom sizes - Contact for bulk pricing
