Water Repellent Certifications: OEKO-TEX, ZDHC & bluesign

Water repellent certifications — OEKO-TEX, ZDHC and bluesign chief among them — tell a buyer that a finish is tested, safe and compliant with the restricted-substance rules their supply chain runs on. For B2B textile buyers they’re often a gate: no certificate, no order. This guide explains what each covers and which water repellent certifications you should ask a supplier for.

For the chemistry behind the compliance push, see our guides to PFAS-free water repellents and C6 vs C0.

Why certifications matter for B2B buyers

Brands and retailers run restricted-substance lists (RSLs), and their mills have to prove every chemical input conforms. A water repellent with the right certificates clears that check quickly; one without it stalls the order while the buyer chases documentation. Certificates are also how you prove a PFAS-free claim and satisfy export compliance.

OEKO-TEX

OEKO-TEX is the most widely recognised name. Two parts matter here: STANDARD 100 certifies finished textiles as free from harmful substance levels, while ECO PASSPORT certifies the chemical product itself — a repellent — as screened against its restricted-substance criteria. When a supplier says a grade is “OEKO-TEX compliant”, ECO PASSPORT is usually what’s relevant.

ZDHC MRSL

The ZDHC Manufacturing Restricted Substances List (MRSL) restricts hazardous substances in the chemical inputs used to make textiles, at conformance levels (1–3). It’s the standard most major apparel supply chains now reference, and it directly addresses PFAS. Ask which MRSL version and conformance level a grade meets.

bluesign

bluesign takes a whole-system approach — it screens chemical inputs and looks at how they’re used in the process, not just the substance list. A bluesign-approved input signals a high bar on both safety and manufacturing practice.

PFAS test reports and the SDS

Beyond the schemes above, two documents carry weight: a PFAS test report proving a finish is genuinely fluorine-free, and the SDS (safety data sheet) for handling and export. Together they back up a PFAS-free claim and keep customs and compliance teams happy.

What to ask your supplier for

• OEKO-TEX ECO PASSPORT for the repellent (and STANDARD 100 where relevant).
• ZDHC MRSL conformance level and version.
• A PFAS test report if you need a PFAS-free claim.
• The TDS and SDS for every grade you buy.

Get compliant grades with the paperwork

DWR Factory supplies water repellents with OEKO-TEX and ZDHC-compliant options, PFAS test reports for fluorine-free grades, and a TDS/SDS for each product. Tell us which certificates your buyers require and we’ll match a grade: request a free sample or browse the range.

Frequently asked questions

What certifications should a water repellent have?

Usually OEKO-TEX (ECO PASSPORT), ZDHC MRSL conformance, and — for a PFAS-free claim — a PFAS test report, plus a TDS and SDS.

What is OEKO-TEX?

A textile testing and certification system. STANDARD 100 certifies finished textiles; ECO PASSPORT certifies chemical products such as a water repellent.

What is ZDHC MRSL?

The ZDHC Manufacturing Restricted Substances List restricts hazardous substances in the chemical inputs used to make textiles, at conformance levels 1–3.

What is bluesign?

A whole-system approach that screens chemical inputs and how they’re used in manufacturing, not just the substance list.

How do I prove a water repellent is PFAS-free?

With a PFAS test report on the specific grade, backed by its SDS and a fluorine-free (C0) formulation.

Do your water repellents come with certificates?

Yes. We offer OEKO-TEX and ZDHC-compliant grades with PFAS test reports for fluorine-free products and a TDS/SDS for each.