W-60-P family
Wick code and burn hours
A 9 oz soy jar holds about 255 g of net wax, and the wick code decides how fast that fuel goes. Published tables pair each code with a jar diameter and a wax type, so the pick is a table lookup and the hours are one division.
W-60-P family
W-1 to W-7
LX series
RRD series
Zinc-cored wicks
Pick by diameter and wax type: soy takes a paper or cotton core, and the code comes from the application column.
A 9 oz jar is a container candle, so open the container range first. Paper-cored codes run from 3.2 g/hr for tea-lights to 4.6 g/hr for medium 1–2 inch containers.
Soy is a natural wax, and the sizing guide says soy and single-pour waxes usually need a slightly bigger wick. Fragrance and dye push the selection the same way.
Zinc cores are out for this jar: the specification says they are not recommended for natural/renewable waxes. If the jar measures 2–3 inches across, the column points to the medium paper codes or to ECO-6.
Divide net wax weight in grams by the wick's published burn rate in grams per hour.
Net fill, not gross jar weight: a 9 oz candle holds about 255 g of wax once jar and wick are excluded.
At the published 3.5 g/hr of the W-61-P, those grams give 73 hours of fuel. The same fill under the W-4 pillar rate of 6.2 g/hr gives about 41 hours.
A wider melt pool eats wax faster, which is why the pillar line runs hotter than the container line.
Wick size is determined mainly by the diameter of the container, and the core type comes from the wax.
The pillar line shows the logic plainly: the published burn rate rises with the diameter of the melt pool the wick has to feed, from 3.9 g/hr for tea-lights to 7.8 g/hr for 3–4 inch pillars.
The container line moves in smaller steps: 3.5 g/hr for small containers, 3.6 g/hr for extra small containers under 1 inch, 4.6 g/hr for medium 1–2 inch containers.
Cores differ in what they tolerate. Hemp is a 100% hemp core in a cotton sleeve, and the ECO series is a flat braid with interwoven paper threads.
Five core types from one specification page, each with its published rate span and application column.
Tunneling and mushrooming point at the wick; wet spots and adhesive failure point at the wax.
Tunneling leaves a hard rim around the melt pool. It means the code is too small for the diameter, and the fix is a bigger wick.
Mushrooming is called blooming in the LX description, where a self-trimming wick position is designed to minimise or eliminate it. Sooting and after glow are what that treatment is stated to reduce.
Wet spots sit with the wax and the jar. Fragrance and dye change how a code behaves but do not create a wick fault on their own.
| Wick code | Core material | Fits | Burn rate (g/hr) | Yield (yd/lb) |
|---|---|---|---|---|
| W-61-P / W-22B-P | Paper | Small containers | 3.5 | 543 |
| W-63-P / W-22D-P | Paper | Extra small under 1 in, small votives | 3.6 | 521 |
| W-66-P / W-23-P | Paper | Medium 1-2 in containers | 4.6 | 395 |
| W-4 (24 ply) | Flat braid, treated | 2-3 in pillars | 6.2 | 450 |
| LX-8 | Treated cotton | Small 1-2 in pillars | 4.6 | 853 |
| LX-20 | Treated cotton | Medium 2-3 in pillars | 7.3 | 402 |
| RRD-37NST2 | NST-treated cotton | Medium 2-3 in containers | - | 435 |
| LX-14 | Treated cotton | Medium 2-3 in pillars | 6.1 | 548 |
Candlewic, 'Candle Wicks Explained' (fetched 2026-10-25); Candlemaking.com, 'How to Pick a Wick' (fetched 2026-10-25).