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Soy Wax for Candle Making

Soy wax is a plant-based wax made from hydrogenated soybean oil. It is the most popular natural wax for candle making in the UK and Europe, chosen for its renewable credentials, creamy finish and eco-friendly profile. This guide covers everything you need to know: how soy wax performs, the right fragrance loads and temperatures, how long it takes to cure, and which soy wax to choose from the Candle Shack range.

What is soy wax?

Soy wax is made by fully hydrogenating soybean oil, a process that converts the liquid oil into a solid wax. The result is a soft, white or off-white wax that melts at a relatively low temperature, typically between 45 and 55°C depending on the grade. Because it comes from soybeans, it is fully renewable, biodegradable and vegan.

Soy wax was developed in the early 1990s as a plant-based alternative to paraffin. It quickly became popular with smaller candle makers and natural brands because of its clean image and workability. Today it is the dominant natural wax in both the UK and US markets.

How much fragrance can you add to soy wax?

Most soy waxes accept 8 to 10% fragrance oil by weight. This means for every 100g of wax. Start at 8% and test before increasing, as going above the wax's maximum fragrance load risks the oil seeping to the surface rather than binding into the wax.

Soy wax generally holds fragrance less strongly than paraffin, which means the hot and cold throw is softer. This is a characteristic of the wax, not a fault. If scent strength is your priority, a paraffin/soy blend will outperform pure soy.

How long does soy wax take to cure?

Curing is the process by which fragrance oil fully binds into the wax crystal structure after pouring. With soy wax, this matters more than with paraffin because the binding process takes longer.

The minimum cure before a burn test is 48 hours at room temperature. However, scent throw will continue to improve for 7 to 14 days after pouring. If you test a soy candle at 24 hours and find the scent is weak, wait a week before drawing conclusions. Many makers find their soy candles smell noticeably stronger at 10 days than at 2.

To cure properly: leave candles uncovered in a stable room temperature environment, away from direct sunlight and drafts. Do not refrigerate to speed up setting, as this can cause cracking and uneven surfaces.

EU and UK alternatives to GW464

Golden Wax 464 (GW464) is the world's most widely used soy container wax, produced by AAK under the Golden Brands name. Because it was originally manufactured in the US, UK and EU makers have historically had to import it, which affects both cost and lead times.

Candle Shack now stocks two versions:

EU Golden Wax 464 is the European-manufactured equivalent, made to the same specification as the original but produced within the EU. This is the answer for UK and EU makers who want GW464 performance without US import logistics.

Golden Wax 464 USA is the original American product for makers who have tested and formulated with it specifically and want to keep their recipes consistent.

If you want a fully European soy wax outside the GW464 range, the EcoSystem SCX (soy and coconut blend) and EcoSystem RCX (rapeseed and coconut blend) are developed and blended in Europe. Nature Wax C-3 is another EU-available soy option. All are stocked by Candle Shack for UK and EU delivery.

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Soy wax vs paraffin: the honest comparison

Paraffin wax produces a stronger scent throw and is more forgiving to work with. Soy wax offers better sustainability credentials and a softer, more natural aesthetic. The trade-offs are real in both directions.

Most professional candle makers who use soy do so for brand reasons: a natural, plant-based product story matters to their customers. If scent performance is the priority, paraffin or a paraffin-led blend is the stronger choice. A blend of 70 to 80% soy with 20 to 30% paraffin reduces frosting and improves throw while keeping a predominantly natural wax profile.

Fixes Common soy wax problems and how to fix them

Frosting

Frosting is a white, powdery or crystalline bloom on the surface or sides of a soy candle. It is caused by the natural polymorphism of soy wax: the fat crystals rearrange themselves over time. It is not a defect and does not affect burn quality or scent throw, but it can affect appearance.

To reduce frosting: pour at a slightly lower temperature, keep your glassware at room temperature when pouring, and avoid rapid cooling. Adding a small amount of paraffin (10 to 20%) to your blend will reduce frosting significantly. Some makers embrace it as a sign of a genuinely natural product.

Rough or uneven tops

Uneven or textured tops after cooling are common in soy wax and are usually caused by pouring too hot, cooling too quickly, or drafts during setting. Pouring at the lower end of the recommended pour temperature range and leaving candles to set at a stable room temperature in a draft-free spot will produce smoother tops in most cases.

Poor scent throw

If your soy candle has weak scent throw, check three things first: cure time (wait at least a week), fragrance load (are you at 8 to 10%?), and wick size (an undersized wick will not create a full melt pool and will reduce hot throw). If all three are correct and throw is still weak, the fragrance oil itself may not perform well in soy. Not all fragrance oils bind equally well in all wax types.

FAQs Frequently asked questions

Is soy wax good for candle making?

Yes, soy wax is well suited to container candles. It is clean, renewable, easy to work with at home, and gives candles a natural, creamy appearance. Its main limitations are a softer scent throw compared to paraffin and a tendency to frost. Both are manageable with the right technique and blend.

What is soya wax?

Soya wax is the same product as soy wax: hydrogenated soybean oil in solid form. The two spellings are used interchangeably in the UK. 'Soy wax' is the more common term in candle making contexts.

What are soy wax flakes?

Soy wax flakes are soy wax supplied in small flake or pastille form rather than as a solid block or slab. Flakes are easier to weigh and melt than blocks, which is why they are the most popular format for home and small-batch candle makers. All of the pure soy waxes in the Candle Shack range are supplied as flakes.

Can I use GW464 in the UK?

Yes. Candle Shack stocks both Golden Wax 464 USA (the original American product) and EU Golden Wax 464 (the European-manufactured equivalent). The EU version offers the same performance with EU-based supply, which is the more practical option for most UK and European makers.

What is the fragrance load for soy wax?

Most soy waxes accept 8 to 10% fragrance oil by weight. Start at 8% for new tests. Going above 10% risks fragrance seeping out of the wax rather than binding into it.

How long should I cure soy candles before selling?

A minimum cure of 48 hours is needed before burn testing. For selling, allow 7 to 14 days wherever possible. Scent throw in soy wax improves noticeably over the first week to two weeks after pouring. Selling candles within 48 hours of making them risks the scent throw being weaker than your customer will experience later.