Whitener WW 20 from BEKRO
€3,00 EUR
Whitener WW 20
Optical brightener blend for yellowed waxes
Sold in a bag of 10 g
"Makes candles genuinely white — not just less yellow. Visible results even in soy and coconut wax, with a brightness that holds up in natural light."
WW 20 is a high-performance additive that transforms naturally yellowed waxes into a bright, pure white. Unlike conventional whiteners, it combines chemical bleaching agents with an optical brightener — a compound that absorbs UV light and re-emits it as visible blue light, actively neutralising residual yellow and producing a whiteness that stands out even in natural daylight.
Usage guide
Everything you need to know before use
By total wax weight. Always start at the minimum — excess causes an unwanted bluish halo (over-fluorescence). Record the percentage used per batch for consistency.
Melt the wax completely first. Add WW 20 between 70–80 °C and stir well for 2–3 minutes before pouring. Do not exceed 85 °C to avoid degrading the optical brightener.
- Paraffin
- Stearin (animal & vegetable)
- Vegetal waxes (soy, coconut, rapeseed)
- Hydrogenated fats
- UV absorbers — incompatible
UV absorbers (e.g. Tinuvin) block exactly the UV spectrum that WW 20 needs to generate fluorescence. Using both together completely cancels out the whitening effect. These two additives have opposing functions — never combine them in the same formula.
WW 11 and WW 16 work through chemical bleaching — they react with yellow pigments. WW 20 adds a second mechanism: absorbing UV and re-emitting visible blue light. The result is significantly whiter, especially under cool white LED or natural daylight.
Natural vegetable waxes contain carotenoid pigments that absorb blue light — which is why they look yellow. WW 20's optical brightener reverses this: it absorbs UV and emits visible blue, offsetting the yellow perceived by the human eye. The result isn't just "less yellow" — it's actively white.
White pillar candles in paraffin or stearin. Vegetable waxes with strong yellow tones (raw coconut, unrefined rapeseed). Wax melts and decorative candles where final colour is a quality criterion. Any formula that does not include UV absorbers.