Solid Cast 660 | Polyurethane Casting Resin 1:1
Extremely fluid, white low odour reactive polyurethane that pours like water into a mould, reproducing the finest details.
Handy to have for casting models, small figures, jewellery, industrial parts and decorative pieces when poured into a silicone rubber mould. The exclusive formulation of Solid Cast 660 allows the addition of all types of filler (mineral or metallic) to obtain different aspects, weights and volumes. For example, it is possible to create objects that imitate bronze, aluminium, etc. with the appropriate fillers.
Learn more about Solid Cast 660+
Product Details
Mix Ratio
1:1 by volume
Working Time
2 – 2.5 minutes @ 20°C
Demould Time
15 – 40 minutes @ 20°C
Shore Hardness
75D
Filler Capacity
Up to 200%
Key Features
Extremely fluid
Low odour
Naturally degassed
High filler capacity
Reproduces fine detail
Available Sizes
1L Kit
2L Kit
4L Kit
10L Kit
20L Kit
Common Uses
Models & figurines
Jewellery casting
Industrial parts
Decorative pieces
Car restoration (knobs, switches, trims)
How to Use
1
Shake both Part A and Part B containers well before use.
2
Measure out equal parts A and B by volume — for example, 100ml Part A to 100ml Part B — into a straight-sided, flat-bottomed container.
3
Mix thoroughly with a flat, ruler-shaped stick, scraping the sides and base — work time is short, so mix in under a minute until streak-free.
4
Pour immediately into your silicone rubber mould. Demould after 15 – 40 minutes at 20°C.
Storage & Safety
Solid Cast 660 is moisture sensitive — replace the caps on both containers immediately after use. It cures to an amber/white finish, or cloudy white if any moisture is absorbed during mixing. Add our epoxy pigment paste in white for a pure white cured result.
Frequently Asked Questions
What is Solid Cast 660 Polyurethane Casting Resin?+
Solid Cast 660 is an extremely fluid, low odour reactive polyurethane casting resin that pours like water into a mould, reproducing the finest surface details. It's used for casting models, figurines, jewellery, industrial parts and decorative pieces.
What's the mix ratio for Solid Cast 660?+
Mix Part A and Part B at a simple 1:1 ratio by volume — for example, 100ml of Part A to 100ml of Part B — until the mixture is streak-free.
How long does it take to set and demould?+
Working time is 2 – 2.5 minutes at 20°C, and pieces can typically be demoulded within 15 – 40 minutes at 20°C.
Can Solid Cast 660 be coloured or filled?+
Yes. It accepts epoxy pigments, dyes and mica powders for colour, and can take a filler ratio of up to 200% (mineral or metallic) to imitate materials like bronze or aluminium.
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Solid Cast 660 | Polyurethane Casting Resin 1:1 | 1L Kit
$51.99
Solid Cast 660 Polyurethane Casting Resin 1:1 | 1L Kit Extremely fluid, light amber, low odour reactive polyurethane that pours like water into a mould, reproducing the finest details. Mixed...
Solid Cast 660 | Polyurethane Casting Resin 1:1 | 2L Kit
$79.99
Solid Cast 660 Polyurethane Casting Resin 1:1 | 2L Kit Extremely fluid, light amber, low odour reactive polyurethane that pours like water into a mould, reproducing the finest details. Mixed...
Solid Cast 660 | Polyurethane Casting Resin 1:1 | 4L Kit
$149.99
Solid Cast 660 Polyurethane Casting Resin 1:1 | 4L Kit Extremely fluid, light amber, low odour reactive polyurethane that pours like water into a mould, reproducing the finest details. Mixed...
Solid Cast 660 | Polyurethane Casting Resin 1:1 | 10L Kit
$325.00
Solid Cast 660 Polyurethane Casting Resin 1:1 | 10L Kit Extremely fluid, light amber, low odour reactive polyurethane that pours like water into a mould, reproducing the finest details. Mixed...
Solid Cast 660 | Polyurethane Casting Resin 1:1 | 20L Kit
$575.00
Solid Cast 660 Polyurethane Casting Resin 1:1 | 20L Kit Extremely fluid, light amber, low odour reactive polyurethane that pours like water into a mould, reproducing the finest details. Mixed...
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