Slack Wax Price

Slack wax price is set by oil content, delivery basis and the paraffin market it feeds. On a delivered northwest Europe basis, published assessments have moved from $1,396.33/t to $1,201.52/t between 06 Dec and 03 Jan, a fall of $194.81/t (Argus Media, 2023). Buyers who track that spread, rather than a single quote, negotiate from a stronger position.

Who this guide is for

This page is written for three buyers. Candle and wax blenders who buy slack wax to cut costs on economy, container and grave/church/mourning candle runs. Procurement managers benchmarking a supplier quote against an independent market index before signing a contract. Wax distributors and resellers deciding whether to stock slack wax alongside paraffin wax. Each section below answers a question specific to one of these roles.

What determines the slack wax price

Slack wax is a feedstock wax, not a finished paraffin grade, so its price tracks feedstock and refining economics rather than a single fixed list. Three variables move the number most.

Oil content

Slack wax is defined by its oil content, and buyers should ask for it on every quote. ASTM F3418-20 notes that slack wax-based binders typically contain oil content greater than 20% by mass (ASTM International, 2020). A published benchmark grade, slack wax 10-20% delivered northwest Europe, sits at a lower oil band and is quoted separately in industry reports (Argus Media, 2023). Higher oil content generally trades at a discount to lower-oil grades, because more processing is needed before the wax is candle- or blend-ready.

Delivery basis and origin

A price quoted FOB origin is not the same number as one delivered to a European or Asian port, and the gap moves with freight. The ICIS Paraffin Wax Report carries a slack wax spot quote on an FOB USG basis for the US market, alongside two other US quotes, published monthly (ICIS, undated). Always confirm which basis a quote uses before comparing it to a benchmark.

Refinery integration

Slack wax is a byproduct stream of base oil refining, and base stock production is concentrated in refinery-integrated lube blocks. Fuels & Lubes Asia notes that most base stock output comes from lube blocks physically and commercially integrated with a co-located parent fuels refinery (Fuels & Lubes Asia, 2014). That integration affects how much slack wax volume reaches the open market in a given period, which in turn affects price.

Slack wax price benchmarks buyers can check

Independent price reporting agencies publish slack wax assessments on a recurring schedule. Checking a benchmark before accepting a supplier quote is a fast way to sanity-check a number.

A slack wax price guide is only useful if the buyer knows which basis and which oil band each number refers to. Treat a headline figure as a starting point for a slack wax price comparison, not a final answer.

Slack wax price vs. paraffin wax price

Slack wax and paraffin wax are reported as related but separate lines in the same market data. Argus Global Waxes assesses paraffin wax, liquid and slab wax, and feedstock slack wax as distinct categories within the same monthly report (Argus Media, undated). Slack wax generally trades below fully-processed paraffin wax because it carries a higher oil content and needs further processing before it can go into a finished candle or blend. A slack wax price review that ignores this gap will misread a slack wax quote as overpriced, or a paraffin quote as cheap, when the two are not interchangeable grades.

Buying slack wax for candles and blending

Slack-wax blending is a recognised route for economy and utility candle production, where cost matters more than a fully clarified finish. Buyers targeting container candles or grave/church/mourning candle runs typically blend slack wax with a harder paraffin fraction to hit a workable melt point and pour behaviour for that application. Confirm oil content and melt range before committing volume, since both affect how the blend performs once poured.

What to check before you order

• Ask the supplier to state oil content by mass on the quote, not just "slack wax."
• Confirm whether the price is FOB origin or delivered, and to which port.
• Compare the quote against a recent Argus or ICIS benchmark for the same basis.
• Check minimum order quantity and whether it fits your blending schedule.
• Request a lead time in writing, and confirm it against your production calendar.
• Ask which Incoterm applies and who carries freight and insurance risk.
• Verify the HTS classification and duty rate that applies at your destination.
• Request a certificate of analysis with each shipment, not only the first one.

Working with BHD Group

BHD Group supplies Slack Wax alongside Paraffin Wax and Petroleum Jelly through BHD Sourcing, one of the group's two divisions, BHD Chemical and BHD Sourcing. We quote on spec and on time, and we state oil content, delivery basis and lead time plainly on every offer, because a slack wax price only means something once those terms are fixed. If you are comparing a slack wax price quote against the market, send us your target oil band and destination port, and we will return a delivered figure you can check against the benchmarks above.

Sources

• Argus Media (undated) — Argus Global Waxes — https://www.argusmedia.com/en/solutions/products/argus-global-waxes
• Argus Media (2023) — Argus Global Waxes (sample report) — https://www.argusmedia.com/-/media/project/argusmedia/mainsite/english/documents-and-files/sample-reports/argus-global-waxes.pdf
• ICIS (undated) — Paraffin Wax Price Report | Compliance and Methodology — https://www.icis.com/compliance/reports/paraffin-wax-price-report/
• ASTM International (2020) — ASTM F3418-20 — https://store.astm.org/f3418-20.html
• Fuels & Lubes Asia (2014) — Margin Levers Impacting Group I and Group II Competitiveness — https://www.fuelsandlubes.com/flo-article/margin-levers-impacting-group-i-and-group-ii-competitiveness/
• U.S. Energy Information Administration (undated) — U.S. Exports of Waxes — https://www.eia.gov/dnav/pet/hist/LeafHandler.ashx?n=PET&s=MWXEXUS2&f=A

Quick facts

• Slack wax is a feedstock wax with oil content typically greater than 20% by mass (ASTM International, 2020).
• A benchmark grade, slack wax 10-20% delivered northwest Europe, fell $194.81/t between 06 Dec and 03 Jan in one published assessment (Argus Media, 2023).
• Argus Global Waxes and the ICIS Paraffin Wax Report both publish independent slack wax price assessments on a recurring schedule.
• Slack wax generally prices below paraffin wax because it carries higher oil content and needs further processing.
• BHD Group supplies Slack Wax through BHD Sourcing, alongside Paraffin Wax and Petroleum Jelly.