Smooth-On Cast 305 Urethane Resin (Trial Unit)
Product ID: 273889732
Details
- BrandSmooth-On
- Item formLiquid
- MaterialPlastic
- Special featuresPortable
- Specific uses for productCraft Model
⏳30 min demold time
🎨Bright white, paintable
⚖️1:1 mix ratio
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🎨 Cast your vision with precision and style—because your creativity deserves the smoothest flow.
Smooth-On Smooth-Cast 305 is a low-viscosity, bright white urethane resin with a 30-minute demold time and 7-minute pot life. It features a simple 1:1 mix ratio, produces bubble-free, durable castings that are paintable and moisture resistant, ideal for prototyping, sculpting, and special effects. No vacuum degassing needed, making it perfect for professionals seeking reliable, high-quality results with controlled curing.
| ASIN | B00ZGOSTTY |
| Brand | Smooth-On |
| Brand Name | Smooth-On |
| Color | Bright White |
| Colour | Bright White |
| Compatible Material | Plastic, Metal, Wood, General-Purpose |
| Container Type | Bottle |
| Customer Reviews | 4.6 out of 5 stars 197 Reviews |
| EU Spare Part Availability Duration | 30 Minutes |
| Full Cure Time | 30 Minutes |
| Included Components | 1 x Smooth Cast 300, 1 x Smooth Cast 500, 1 x Smooth Cast 700 |
| Item Form | Liquid |
| Item Package Quantity | 1 |
| Item Weight | 907 g |
| Item form | Liquid |
| Manufacturer | Smooth-On |
| Material | Plastic |
| Material Type | Plastic |
| Model | Smooth-Cast 305 |
| Number of Pieces | 2 |
| Other Special Features of the Product | Portable |
| Part Number | FBASOSC305Trial |
| Special features | Portable |
| Specific Uses For Product | Craft, Model |
| Specific uses for product | Craft, Model |
| UPC | 035239000262 |
| Viscosity Level | Low |
| Volume | 16 Fluid Ounces |
| Water Resistance Level | Water Resistant |
C**N
Excelente resina
Buen rendimiento y duración. Era lo esperado.
O**Z
Mehor de lonque esperaba muy bueno
Es muy bueno
A**R
Item was as described
This resin worked very well for my project. The resin itself is quite sturdy after casting and was easy to measure out before casting. I highly recommend!
D**N
Excellent Product
I’ve used a lot of casting resins and urethanes and this is one of the best Smooth-On has to offer. I like it better than 300 (2 min pot life and 10 minute cure), as 305 has a manageable pot life of 8 minutes and a cure time of 30. These characteristics make it an ideal material if you need to produce several casts in a day, while providing adequate time to mix and pour into your molds. The plastic is bright white as advertised when cured and durable. I’m producing very small castings (4-6 grams of material at a time) and the 1-1 volume ratio is very easy to mix and follow.
A**R
A few bubbles, but worked great.
It works quite well if you use both a vacuum to de-gas and pressure-pot to pressurize. I still have a few bubbles float to the top or get stuck on mold features, but otherwise this is the best option I have found available on amazon. The working time is short, I only have about 3 minutes (of the 7 minutes) to get it mixed and in the mold, but not as short as the 300 version, where I only feel like I have one minute (of the 3 minutes). I did eventually switch from this to the Task 9 version to mix it with color.
Trustpilot
1 month ago
1 day ago