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Hand-Applied Polyurea Roof & Renovation Coating

BW6-9528

One-component aromatic hand-applied polyurea coating for roof waterproofing, renovation details, old SBS membrane repair and prepared color-steel roof protection.

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Finished light-gray coating on a large flat building roof

Product Description

BW6-9528 is a one-component aromatic-modified polyurea waterproof and anti-corrosion protective coating material. This product exhibits excellent adhesion to both concrete and steel substrates, and features simple application that does not require specialized polyurea spraying equipment. Owing to its unique chemical structure, the cured coating film demonstrates outstanding chemical medium resistance and superior waterproofing performance, rendering it an ideal material for waterproof and anti-corrosion protection applications. Its characteristics of high elasticity and high bond strength make it particularly suitable for waterproofing projects of building roofs, balconies, bathrooms, exterior walls and basements, and is especially applicable to the renovation of old roofs constructed with SBS membranes as well as anti-corrosion and waterproofing treatment of old profiled colored steel tile roofs.

BW6-9528 one-component modified polyurea waterproof roof coating official product packaging image

Application Scope

BW6-9528 is used for waterproofing and protection in construction, water conservancy, transportation, chemical and electric-power fields, especially old membrane roof repair and old color-steel roof waterproofing and corrosion protection.

  • Building WaterproofingFor roofs, balconies, bathrooms, exterior walls and basements after substrate preparation.
  • Old Membrane Roof RepairEspecially applicable to renovation and repair of old waterproofing membrane roofs.
  • Color-steel roof protectionReview corrosion condition, loose rust, fasteners, seams and primer compatibility before coating old profiled color-steel roofs.
  • Concrete and Steel ProtectionMeasured adhesion values support bonding to properly prepared concrete and steel substrates.

Designed for Roof Waterproofing and Renovation Repair

BW6-9528 helps applicators build a flexible waterproof protective layer on prepared roofs and renovation substrates when brush, roller or airless application is more practical than special polyurea spray equipment.

17 MPaTensile StrengthProvides listed tensile-strength data for flexible protective coating review.
400%ElongationSupports flexible waterproofing and renovation detail review on prepared substrates.
52 kN/mTear StrengthProvides listed tear-resistance data for waterproof protective coating service.
1.25 g/cm³DensityProvides listed density data for material comparison and coating-system planning.

Product Features and Advantages

BW6-9528 is designed for roof waterproofing and renovation repair, helping applicators build a flexible protective layer over prepared roofs, old SBS membranes, color-steel roofs and related building details.

Building waterproofing

  • Roof waterproofing coatingFor building roof waterproof protection and renovation details where hand application is preferred.
  • Balcony waterproofingSuitable for balcony waterproofing and repair details listed in the data sheet.
  • Basement and exterior wall waterproofingSupports basement and exterior wall protection after substrate preparation and adhesion review.

Renovation and corrosion-protection review

  • SBS membrane repairEspecially applicable to renovation and repair of old roofs constructed with SBS membranes.
  • Color-steel roof waterproof coatingUsed for waterproofing and corrosion-protection review on old profiled color-steel tile roofs after surface and primer checks.
  • Prepared concrete and steel protectionCan be reviewed for concrete, steel, wood and glass fiber substrates after proper surface treatment.

Technical Data

These technical values are measured under controlled laboratory conditions to support product comparison, project selection and specification review. Please confirm final requirements with the latest approved TDS and project-specific conditions.

Product Information

Product data table
ItemResult
AppearanceColor is adjustable
Specific gravity (g/cm³)1.25±0.05
Viscosity (cps) @ 20°C7500±500
Solid content (%)≥80
Surface dry time (h)2-4
Pot life (h)1
Theoretical coverage0.75 kg/m2 at 500 µm thickness

Physical Properties

Product data table
ItemTest standardResult
Hardness (Shore A)ASTM D-224078
Elongation (%)ASTM D-412400
Tensile strength (MPa)ASTM D-41217
Tear strength (kN/m)ASTM D-62452
Abrasion resistance (750 g / 500 r), mgHG / T 3831-200610
Adhesive strength (MPa), steel baseHG / T 3831-20068
Adhesive strength (MPa), concrete baseHG / T 3831-20063.3
Impact resistance (kg.m)GB / T 23446-20091.0
Density (g/cm³)GB / T 6750-20071.25

Chemical Resistance

For reference: pay attention to ventilation, splash and spillage. Independent immersion testing is recommended if detailed data is required.

Product data table
Exposure itemResult
Acid resistance 10%H2SO4 or 10%HCl, 30 dNo corrosion, no blistering, no peeling
Alkali resistance 10%NaOH, 30 dNo corrosion, no blistering, no peeling
Salt resistance 10 g/L, 30 dNo corrosion, no blistering, no peeling
Salt spray resistance, 2000 hNo corrosion, no blistering, no peeling
Oil resistance 0# diesel, crude oil, 30 dNo corrosion, no blistering, no peeling

Application Environment and Guide

Stable coating performance depends on the right site conditions, substrate preparation, material handling and coating method. Review the application environment and guide values before installation, and confirm final parameters with the latest TDS and project requirements.

Application Environment

Confirm temperature, humidity and dew point before application, especially on metal surfaces.

Product data table
ConditionRequirement
Environment temperature-5°C to 35°C
Relative humidity35-85%
Dew pointFor metal surfaces, substrate temperature should be at least 3°C above the dew point

Application Guide

BW6-9528 is designed for brush, roller or high-pressure airless application without specialized polyurea spray equipment.

Product data table
Guide itemRecommendation
Theoretical coverage reference0.75 kg/m2 at 500 µm thickness
Recommended dry film thickness300-1000 µm, or as design requirements
Coating interval4-24 h; if recoating exceeds 24 h or dust is present, sand and clean before application
Recommended coating methodsBrush, roller or high-pressure airless spraying. No specialized polyurea spraying equipment is required.
Before useStir the coating evenly before use, pour out only the required quantity and close the barrel lid quickly.
Diluent controlDo not add diluent without permission. If viscosity adjustment is needed because of temperature or site conditions, consult the manufacturer before adding special diluent.

Substrate Treatment

Prepare each substrate according to the data sheet before full application or recoating.

Product data table
SubstrateTreatment requirement
Metal surfaceSandblast for rust removal to Sa2.5 according to ISO8501-1 or GB8923.
Concrete surfaceFirm, dense, flat, clean and dry. No sanding, peeling, cracks or honeycomb pits; repair with putty where needed.
Wood surfaceClean, dry and free from burrs, debris and loose fragments.
Other substratesConsult BW technical personnel for surface treatment guidance.

Application Notes

Product data table
NoteInstruction
Low-temperature useBW6-9528 can be used at -5°C. In low-temperature environments, place the coating bucket in an air-conditioned room for at least 24 hours before use.
Before each useStir the coating evenly, pour out the exact quantity needed and quickly close the barrel lid.
Material handlingDo not return used material to the original barrel, and do not add diluent without technical confirmation.

Product Curing Time, Shelf Life and Packing

Use the listed curing profile, shelf life, packing and storage requirements for application scheduling, warehouse handling and order planning.

Product Curing Time

Curing time varies with environmental conditions, especially temperature and relative humidity.

Product data table
Substrate temperatureSurface dry timeFoot trafficSolid dry time
+10°C5 h24 h7 d
+20°C3 h16 h6 d
+30°C2 h8 h5 d

Shelf Life & Packing

Product data table
ItemDetails
Package5 kg/barrel; 25 kg/barrel
Shelf life6 months, unopened original packaging
Storage temperature5-35°C
Storage precautionStore in a cool and ventilated place, avoid direct sunlight and keep away from heat.

Product Health and Safety Information

Safety Data Sheet

For information and advice on the safe handling, storage and disposal of chemical products, users shall refer to the most recent Safety Data Sheet containing physical, ecological, toxicological and other safety-related data.

Integrity Declaration

Colorful Whale Advanced Materials (Shanghai) Co., Ltd. guarantees that the technical data stated in this sheet is based on laboratory tests. Actual testing methods may vary due to different circumstances. Users should test and verify applicability. Colorful Whale Advanced Materials (Shanghai) Co., Ltd. does not take any other responsibility except product quality and reserves the right to modify the listed data without prior notice.

FAQ about BW6-9528 aromatic polyurea roof coating.

These answers follow the BW6-9528 data sheet and focus on roof waterproofing, SBS membrane repair and color-steel roof planning before ordering.

BW6-9528 is a one-component aromatic hand-applied coating for roof waterproofing, renovation details, old SBS membrane review and prepared color-steel roof protection.

It can be reviewed for prepared roofs, balconies, basements, exterior-wall details, old SBS membrane overlay review and color-steel roof repair.

Existing membrane must be firmly bonded, dry and clean. Loose, blistered or failed areas should be removed, and compatibility or adhesion trials may be required.

Assess corrosion condition, remove loose rust, treat fasteners, laps and seams, and review compatible primer before coating. Active leaks require detail correction, not indiscriminate overcoating.

For exposed projects, review UV exposure, color requirements, service conditions and compatible topcoat needs. Do not assume one layer covers every outdoor requirement.

BW6-9528 is positioned for roof and renovation coating, including old SBS and color-steel roof review. BW6-9526 is a localized scraper-applied repair coating for surfaces and details.

Buyers can request the latest TDS, SDS, application guidance, packing information and project-specific roof or renovation review before ordering.

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If you are evaluating BW6-9528 for roof waterproofing, balcony repair, basement protection, old membrane roof renovation or color-steel roof waterproofing, request the latest TDS, SDS, application guidance and project-specific compatibility review before ordering.

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