UV Resin for Beginners: How to Use It and What You Need

UV resin is one of our best-selling craft products, and this guide covers UV resin for beginners: how it works, what you need and how to get clear, hard results. UV resin is a single-part resin, so there is no mixing and no long wait. Apply it, place it under a UV lamp, and it hardens in minutes. That makes it ideal for jewellery, keychains, bookmarks and small charms.

How does UV resin work?

UV resin contains a photo-initiator that reacts to ultraviolet light. When the resin is exposed to the right wavelength (most craft lamps use around 365–405nm), it changes from liquid to solid. Light has to reach every part of the resin, which is why thin layers and light colours cure best.

UV resin or epoxy resin?

• UV resin cures in minutes under UV light. It is best for small, thin pieces, doming, and quick repairs.
• Epoxy resin is mixed from two parts and cures slowly, usually over a day or more. It is better for larger and deeper pours such as coasters and trays. See our resin art guide for epoxy.

What you need to start

• Resin: UV Resin 50g for small projects, or UV Resin 250g if you make a lot.
• UV lamp: a handheld lamp such as the Hand Held UV Light (Heavy) or USB UV light, or a desktop lamp such as the 15W desktop UV light. Strong sunlight can cure UV resin, but slowly and unevenly, so a lamp is far more reliable.
• Moulds or frames: silicone moulds or open pendant frames.
• Colour and sparkle: mica powder, glitter or alcohol ink. Use only a little, because strong or dark colour stops UV light reaching the resin underneath.
• Extras: a silicone cup, mixing sticks, nitrile gloves and a toothpick for bubbles.

Prices change, so see each product page for today’s price. Browse all resin supplies.

How to use UV resin, step by step

1. Prepare: work on a covered, level surface away from direct sunlight, and wear gloves.
2. Pour a thin layer: fill the mould no more than about 2–3mm at a time. Thick layers can stay soft inside.
3. Remove bubbles: pop them with a toothpick before curing. Warming the bottle in a cup of warm water first makes the resin runnier and releases bubbles.
4. Cure: place the piece under the lamp for the time given on the bottle, usually a few minutes for each thin layer.
5. Build up: add dried flowers, glitter or small charms, then add the next layer and cure again.
6. Demould and finish: once fully hard, remove the piece and cure the back too. A thin top coat of resin, cured again, gives a glossy dome.

Why is UV resin sticky, and how to fix it

A tacky surface is the most common problem. Causes include layers that are too thick, too much colour, a lamp that is too weak, or not enough curing time. Cure the piece again, turning it so light reaches every side. Wiping the surface with a little isopropyl alcohol can remove a thin sticky film. Next time, use thinner layers and less colour.

UV resin safety

• Wear nitrile gloves. Uncured resin can irritate skin, and repeated contact can cause allergic reactions.
• Work in a ventilated room and keep resin away from children and pets.
• Never look directly into a UV lamp, and don’t point it at your eyes or skin.
• Store resin tightly closed in a cool, dark place, away from sunlight, which will start to cure it in the bottle.

Frequently asked questions

How long does UV resin take to cure?

Usually a few minutes per thin layer under a UV lamp. Times vary with the lamp’s strength and the thickness and colour of the resin, so follow the bottle.

Can I cure UV resin in sunlight?

Yes, but it is slower and less even than a lamp, especially on cloudy days.

Will UV resin turn yellow?

Most resins can yellow slowly with long exposure to sunlight. Keep finished pieces out of strong direct sun to keep them clear for longer.

Do you deliver islandwide?

Yes. We deliver across Sri Lanka in 2–5 working days, with cash on delivery, card or bank transfer. You can also visit our shops in Boralesgamuwa and Horana, open every day from 9 AM to 6 PM.

Not sure what to choose? WhatsApp the Haanz team on 0711 515 515 and we’ll help you put together a resin kit.

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