Hard Soy Wax – Cera Soy PB (Kerax KeraSoy Pillar 4120)

Cera Soy PB — Kerax KeraSoy Pillar 4120 is a soy wax blend for moulded candles and wax melts. Kerax describes it as biodegradable and vegan-friendly, with no animal products used and no animal testing during manufacture. No additives are needed beyond your chosen fragrance and candle dye.

Quick use guide

View the Cera Soy PB instruction infographic (English, PNG)

• Melting point: 57–63°C (IP371), typical value 60°C.
• Congealing point: 43–52°C (ASTM D938), typical value 47°C.
• Pouring: approximately 55–65°C, adjusted for the mould and formulation.
• Fragrance: designed for 5–10% loads. Respect the specific fragrance limits and test the finished candle.
• Burn testing: after resting for 48 hours.

Kerax seeks non-GMO soy sources where possible but cannot guarantee exclusively non-GMO sourcing.

Heating and storage

Avoid heating above 85°C or heating for extended periods. Stir while melting. Store the wax in a cool, dry place away from direct heat, sunlight and moisture.

Moulds

Use clean moulds at least at room temperature. Preheating to approximately 45–50°C may help.

Colour

Use suitable candle dyes. For powder dyes, Kerax specifies heating to approximately 75°C and stirring until dissolved. For liquid dyes, colour blocks or powder already dissolved in fragrance, it specifies approximately 70°C.

Fragrance and wicks

Choose fragrances suitable for natural waxes. Select the wick through testing, taking account of candle size, fragrance and colour. An oversized wick may cause soot and wax leakage; an undersized wick may cause tunnelling and a small flame.

Pouring and topping up

Start at approximately 55–65°C and adjust through testing. Add the fragrance and mix thoroughly shortly before pouring where practical. One pour is usually sufficient, but some large pillar candles need a top-up before they cool completely.

Cooling and burn testing

Let the candles cool undisturbed at room temperature, approximately 25°C. Wait 48 hours before burn testing. Test every combination of size, wax, fragrance, dye and wick.

We recommend it for making aromatic tarts and candles in silicone moulds.

Technical documents

• Technical data sheet KeraSoy Pillar — TDS v5.0 (26 August 2020, PDF)
• Safety data sheet KeraSoy Pillar — SDS v3.0 (PDF)