IncredaFILL® Skim Coat
M/3DI-4133-250T
IncredaFILL® Skim Coat is the easy-to-sand version of our IncredaFILL® Heavy Duty filler. It's formulated with micro hollow spheres that break down effortlessly under sandpaper, making it ideal for skim coating and finishing large surface areas where smooth, effortless sanding matters most.
Like Heavy Duty, it's a UV-curing urethane filler that cures in around 5 seconds under a 405 nm UV light, with no mixing required. Ready to use straight from the tub for filling, rebuilding, and finishing plastics, timber, composites, and 3D printed parts.
IncredaFILL® Skim Coat is the easy-sand evolution of our original IncredaFILL Heavy Duty filler. Customers loved the strength and instant UV cure of Heavy Duty, but the one thing we heard again and again was that it could be tough to sand back. So we went to work on a new formula — Skim Coat is the same amazing IncredaFILL performance, just built to sand dramatically easier.
Skim Coat is formulated with micro hollow spheres that break down effortlessly under sandpaper, making it perfect for quick jobs, skim coating, and fine finishing work. Use it on its own, as a top layer over Heavy Duty IncredaFILL, over other fillers, or directly onto almost any surface — plastics, timber, composites, and 3D printed parts included.
Like the rest of the IncredaFILL range, it cures in seconds under a 405nm UV light, with no mixing and no waiting. Once cured, it can be sanded, drilled, machined, and painted just like Heavy Duty — only easier.
Built-in cure indicator
Skim Coat includes a colour-changing pigment that reacts to UV light, so you always know exactly when it's ready. Thicker sections stay white until fully cured, then turn purple briefly right through the full depth of the material — a clear visual cue that curing has gone all the way through, not just on the surface. No more guessing whether you've held the light long enough.
Why we made it
Skim Coat exists because of customer feedback. It's not a replacement for Heavy Duty — it's the finishing partner for it: same fast UV cure, same reliability, engineered specifically to be effortless to sand.
Also
Low VOC
Low skin irritation
Low odour
Won't go off or cure in the tub — stays ready to use
At Monocure3D, quality is at the centre of everything we manufacture.
Every product is developed and produced in Australia using carefully
selected raw materials and undergoes strict quality control testing
before leaving our facility. Every production
batch is tested against the previous approved batch to ensure colour,
performance and consistency remain as close as possible. Our Quality
Control results are available online, providing complete transparency
and confidence in the products you purchase. Our
experienced technical support team is always available to help you
achieve the best possible results. Whether you need assistance selecting
the right material, optimising your printer settings or troubleshooting
a print, we’re here to help.
If you experience a problem with one of our products, please contact us with the following information:
- The product name and batch number (printed on every bottle)
- Your printer make and model
- Photos of the printed part and the issue
- Screenshots of your print settings
- A brief description of the problem
Providing this information allows our team to identify the cause much
more quickly and provide accurate recommendations. If we determine that
a product is faulty or not performing as intended, we will work with
you to resolve the issue and, where
appropriate, provide a replacement or refund in accordance with
Australian Consumer Law.
When you choose Monocure3D, you’re choosing Australian-made products
backed by experienced chemists, rigorous quality control and genuine
technical support.
- Easy to sand — micro hollow spheres break down effortlessly under sandpaper
- Cures in ~5 seconds — same fast 405nm UV cure as Heavy Duty, no mixing required
- Built-in cure indicator — turns purple through the full thickness once fully cured, so you're never guessing
- Layers over anything — use over Heavy Duty IncredaFILL, other fillers, or almost any surface
- Low VOC, low odour, low skin irritation — and won't go off in the tub
