Solid Cast 660 Polyurethane Casting Resin 2L kit, showing Part A resin and Part B hardener 1L bottles
Grey plastic gear-shaped parts cast using Solid Cast 660 Polyurethane Casting Resin, showing fine detail reproduction

Solid Cast 660 | Polyurethane Casting Resin 1:1 | 2L Kit

$79.99

or 4 payments of $19.99 with Afterpay Info

Add to Wishlist

american expressapple paymasterpaypalvisaafterpay

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 at a simple 1:1 ratio and naturally degassed, it sets quickly into a firm, durable plastic that can typically be demoulded in around 15 minutes.

Kit Includes

1 x 1L Part A (resin) 1 x 1L Part B (hardener)

Product Details

Kit Size
2L (1L + 1L)
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%
Minimum Mix Volume
100ml combined (A + B)

Key Features

Extremely fluid Low odour Naturally degassed High filler capacity Reproduces fine detail

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 bottles 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. For optimal mixing, use a minimum of 100ml combined A and B.
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 the colour is streak-free and uniformly light amber.
4
Pour immediately into your silicone rubber mould. Demould after 15 – 40 minutes at 20°C.

Colour & Fillers

Solid Cast 660 cures to an amber/white finish, or cloudy white if any moisture is absorbed during mixing. It can be coloured using epoxy pigments, dyes and mica powders, and accepts a filler ratio of up to 200% (mineral or metallic) to imitate materials like bronze or aluminium.

Storage & Safety

Solid Cast 660 is moisture sensitive — replace the caps on both bottles immediately after use to prevent premature curing or clouding.

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. This 2L kit contains 1L Part A and 1L Part B.
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.
Ask a Question
Reviews

Customer Reviews

Based on 23 reviews
87%
(20)
13%
(3)
0%
(0)
0%
(0)
0%
(0)
L
Leanne Bailey
Polyurethane resin

Love this resin, cures really well with a great shine and hardness

L
Liam Horsford
Perfect

Dispatched fast with a good courier and works as advertised.

D
Damon Sherriff
casting resin to tasmania

great service and fast shipping

G
Georgina England
Wonderful product

This product is so easy to use. Easy containers to pour. Very fast shipping.

M
Michael Rancke
Fast cure

Great product could do with witches caps to make pouring easier used tomato sauce caps worked fine.

C
Cheryl Parnell
Casting resin

Easy to mix. Minimal bubbles when dry.

123