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EPDM Waterproof Membrane

EPDM (Ethylene Propylene Diene Monomer) waterproofing membrane is a single-ply synthetic rubber sheet engineered for flat and low-slope roofing, green roofs, ponds and underground structures. It offers a proven service life of 15+ years, UV and ozone resistance, and low-temperature flexibility down to -35°C.

KEY SPECIFICATIONS

Thickness

1.2mm / 1.5mm / 2.0mm / 3.0mm / Customizable

Width

1m / Customizable

Roll Length

10m / Customizable

Low Temp.

-20℃ (Unvulcanized fabric), -25℃ (Vulcanized fabric), -35°C (Unvulcanized homogeneous), -40℃ (Vulcanized homogeneous)

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Everything You Need to Know

Overview

EPDM (Ethylene Propylene Diene Monomer) waterproofing membrane is a single-ply synthetic rubber sheet used as a primary waterproofing layer in roofing, underground and hydraulic engineering. It is available in two categories — vulcanized and non-vulcanized — each in three types: fabric-reinforced, plain and self-adhesive, offering six product configurations to match different project requirements.

Two categories:

Vulcanized EPDM — Fully cross-linked (cured) EPDM with outstanding dimensional stability, UV and ozone resistance, and a proven service life of 15+ years; seams joined with EPDM splicing tape and primer, or hot-air welding for weldable grades.

Non-vulcanized EPDM — Uncured EPDM compound offering excellent flexibility and fast heat-weldable seams; a cost-effective choice for projects prioritizing installation speed and budget.

Three types (available in both categories):

Fabric-reinforced — EPDM sheet laminated with polyester fabric for higher tensile strength and dimensional stability; recommended for large-area roofing and structures subject to movement.

Homogeneous — Smooth, unreinforced EPDM sheet with maximum elongation and flexibility; the classic choice for general roofing, ponds and waterproofing applications.

Self-adhesive — EPDM sheet with a pressure-sensitive adhesive layer and release film for peel-and-stick installation — no adhesive, no primer, faster installation on prepared substrates.

✅ Exceptional UV & ozone resistance — no cracking, degradation or embrittlement over decades of exposure
✅ Low-temperature flexibility down to -40°C — remains pliable in extreme cold
✅ High elongation (≥ 300%) — accommodates structural movement and thermal expansion
✅ Root-resistant — suitable for green and garden roofs
✅ Excellent resistance to acids, alkalis, salts and microorganisms
✅ Environmentally friendly — halogen-free, no PVC, no plasticizers
✅ OEM/ODM available — custom thickness, width, color and packaging

Standard

GB/T 18173.1-2012 (JL1), EN 13956

Thickness

1.2mm / 1.5mm / 2.0mm / 3.0mm / Customizable

Width

1m, Customizable

Roll Length

10m / Customizable

Tensile Strength

≥ 7.5 MPa

Elongation at Break

≥ 300%

Low Temp Flexibility

-20℃ (Unvulcanized fabric), -25℃ (Vulcanized fabric), -35°C (Unvulcanized solid rubber sheet), -40℃ (Vulcanized solid rubber sheet)

Tear Strength

≥ 20 kN/m

MOQ

2000 SQM

Lead Time

15–25 days

OEM/ODM

Available

🏗 Flat & Low-Slope Roofing — Commercial buildings, factories, warehouses and residential developments; ideal for roofing contractors and developers
🌿 Green & Garden Roofs — Root-resistant membrane for planting roofs, roof gardens and landscaping projects
🌊 Ponds & Water Features — Fish ponds, reservoirs, lakes, canals, swimming pools and municipal water projects
🚇 Tunnels & Underground — Tunnels, culverts, underground structures and below-grade waterproofing for infrastructure projects
🏭 Industrial Facilities — Chemical plants, storage facilities and process areas requiring durable, chemical-resistant membranes
🌱 Landfill & Environmental — Landfill liners, wastewater treatment facilities and biogas projects for environmental engineering contractors

Project support:

- Technical data and installation guidance provided to specifiers and contractors
- Samples, test reports and certificates supplied for project qualification
- OEM/ODM and private-label programs for distributors and trading companies

CE Mark — EN 13956 European standard
ISO 9001 — Quality Management System
ISO 14001 — Environmental Management
ISO 45001 — Occupational Health & Safety
GB/T 18173.1-2012 — Product tested and compliant (JL1)

Q: What is an EPDM waterproofing membrane?
A: EPDM (Ethylene Propylene Diene Monomer) is a fully vulcanized synthetic rubber used to make single-ply waterproofing membranes. It is widely used in flat and low-slope roofing, green roofs, ponds and underground structures because of its outstanding UV, ozone and weathering resistance and long service life.

Q: How long does an EPDM membrane last?
A: With proper installation, EPDM membranes provide a proven service life of more than 15 years and require minimal maintenance.

Q: What are the key physical properties of Hongxin EPDM membrane?
A: Tensile strength ≥ 7.5 MPa, elongation at break ≥ 300%, tear strength ≥ 20 kN/m, low-temperature flexibility down to -20°C, and impermeability at 0.3 MPa × 30 min.

Q: How are EPDM seams joined?
A: EPDM sheets are typically joined with EPDM splicing tape and primer, or by hot-air welding for weldable grades. Properly spliced seams form a watertight, weather-proof joint with durability equal to the membrane itself.

Q: Is EPDM suitable for green roofs?
A: Yes. EPDM is naturally root-resistant and is widely used as the waterproofing layer in green and garden roof systems.

Q: What is the minimum order quantity?
A: MOQ is 2000 SQM.

Q: Can you do OEM / private label?
A: Yes — custom thickness, width, surface and brand labeling.

Q: What is the lead time?
A: 15–25 days after order confirmation.

Q: Do you provide samples?
A: Yes, samples available before bulk order.

Q: What certifications do you have?
A: CE, ISO 9001/14001/45001, CEC Green Label.

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Interested in EPDM Waterproof Membrane?

Tell us your project specifications — our team will send a tailored quotation within 48 hours.

🟡 Custom thickness, width & surface available

🟡 OEM brand labeling supported

🟡 Full CE & ISO documentation included

🟡 Sample available before bulk order

HONGXIN WATERPROOF

Weifang Hongxin Waterproof Material Co., Ltd.
Founded 1998 · ISO & CE Certified · 30+ Countries

CONTACT

📍 Taitou Industrial Park, Shouguang City, Weifang City, Shandong Province, China

✉ support@hongxinwaterproof.com

📱 WhatsApp: +86 18366302449

🕐 Mon–Fri 08:30–18:00 CST

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