Polyurethane Waterproof Coating (PUW-200)

Application and packaging photographs for this grade are available on request — ask for the photo pack with your enquiry.

Why buyers choose this grade

Very high elongation accommodates structural movement and thermal cycling.
Seamless, fully bonded membrane with no joints or overlaps.
Excellent UV and weather resistance for exposed roof application.
Ready to use — no on-site mixing required.

Recommended applications

Flat and pitched roofs, balconies, terraces, basements, planters and exposed concrete roofs.

Roofs & Terraces Balconies Basements & Foundations Exterior Walls & Facades

Suitable substrates

Concrete, cement mortar and primed metal; can be applied over sound existing membranes after surface preparation.

ConcreteCement Mortar / RenderSteelExisting Membrane

Technical parameters

Full specification

Values are typical for this grade at 25 °C unless stated otherwise. Request the technical data sheet for the test conditions that apply to your project.

Solid content

≥ 92 %

Coverage

≈ 1.8–2.2 kg per m² per mm thickness, 2 coats

Surface dry

4–8 h

Tensile strength

≥ 2.5 MPa

Elongation

≥ 450 %

Packaging

20 kg pail / 25 kg pail

Physical & performance data

Component system	Single component, moisture-curing
Solid content	≥ 92 %
Surface dry @25 °C	4–8 h
Hard dry	24 h
Full cure	7 days
Recoat interval	8–12 h at 25 °C
Tensile strength	≥ 2.5 MPa
Elongation at break	≥ 450 %
Tear strength	≥ 15 N/mm
Bond strength	≥ 1.0 MPa
Impermeability	≥ 0.3 MPa (30 min)
Low-temperature flexibility	-35 °C, no cracking
Heat resistance	No flow at 80 °C
Consumption	≈ 1.8–2.2 kg per m² per mm thickness, 2 coats
Service temperature	-40 °C to +90 °C
Shelf life	12 months, unopened, 5–30 °C, keep sealed

Packaging specification

20 kg pail	Single component, ready to use
25 kg pail	Single component, ready to use

Certifications & documentation

Technical data sheet On request
Issued per grade and sent with your quotation.
Safety data sheet (MSDS) With shipment
Supplied in English with every shipment.
Batch test report With shipment
Issued for the production batch actually loaded.

Application guide

Construction & application method

The sequence below is the standard method statement. Always follow the current technical data sheet issued with your order, and test a small area before full application.

01

1. Substrate preparation

The substrate must be dry, clean and sound. Repair cracks and honeycombing; round off internal corners with mortar fillets.

02

2. Primer

Apply the recommended PU primer and allow it to dry completely (typically 4–8 h).

03

3. First coat

Apply the first coat by roller or squeegee at the recommended film build, working it into the surface.

04

4. Second coat

Apply the second coat crosswise after the first has cured sufficiently, reaching the total 1.5–2.0 mm design thickness.

05

5. Reinforcement and curing

Use a reinforcing fabric at details and corners. Cure for 7 days before foot traffic or protective screed.

Common questions

Frequently asked questions

No. PU is moisture-curing and requires a dry substrate. Free water will cause blistering; use a cementitious system for damp bases.

Normally two, crosswise, to reach the design thickness. More coats may be required for high-risk roofs.

Yes for our exterior grade — but confirm the specific grade and request the weathering report if the roof is permanently exposed.

Cut out the damaged area, clean and prime, then rebuild the membrane in the same number of coats.

Ordering

Commercial terms

MOQ	5 t
Lead time	7–15 days after deposit
HS code	3909.50
Sample	Sample board available before mass production
OEM / private label	Supported — your artwork and language
Country of origin	China

Export & payment

Incoterms	FOB · CIF · CFR · EXW
Payment terms	T/T 30% deposit, 70% against B/L copy · L/C at sight
Loading ports	Qingdao · Tianjin
Documents	Commercial Invoice · Packing List · Bill of Lading · Certificate of Origin · MSDS / SDS · TDS for the quoted product
Packing	Standard export pails and drums on pallets, shrink-wrapped and strapped for sea freight. Private-label artwork and pack size on request.

Often specified alongside this grade

PCW-100

Polymer Cement Waterproof Coating (Two-Component)

聚合物水泥基防水涂料（双组份）

Flexible cementitious waterproofing membrane for basements, wet rooms and water tanks.

Type Two-component polymer-modified cementitious waterproof coating

Use on Concrete · Cement Mortar / Render · Masonry & Blockwork

Applied to Basements & Foundations, Bathrooms & Wet Rooms

Quality Technical data sheet

MOQ 5 tDetails

Reference spec

ACC-30

Asphalt & Concrete Colour Change Coating

沥青/混凝土路面改色漆

Top-coat protection and colour change for asphalt, concrete and cement road surfaces.

Type Water-based acrylic colour topcoat for asphalt / concrete pavement

Use on Asphalt · Concrete · Cement Mortar / Render

Applied to Roads & Colour Coding, Car Parks

Quality Technical data sheet

MOQ 5 tDetails

Reference spec

RTC-25

Cement Roof Tile Renovation Paint

大瓦专用改色漆

Anti-stain, anti-mould, waterproof and UV-stable renovation paint for cement roof tiles — no primer required.

Type Water-based acrylic roof paint for cement / concrete tiles

Use on Cement Roof Tile · Concrete · Cement Mortar / Render

Applied to Roofs & Terraces, Building Facades

Quality Technical data sheet

MOQ 5 tDetails

Request pricing for PUW-200

Send your quantity, destination port and any certification requirement. We reply with pricing, lead time and the technical data sheet within one working day.

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