Concrete roof waterproofing system

Hand-Applied Polyurea
Concrete Roof Waterproofing System
for Concrete Roofs

A three-layer hand-applied system for prepared concrete roof substrates: BW8010 concrete primer repair, BW6-9528 hand-applied polyurea waterproofing membrane and BW0-8029 exposed polyaspartic topcoat, designed for small or medium concrete roof repair and detail waterproofing where plural-component spray equipment is not convenient.

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Concrete roof hand-applied polyurea waterproofing system showing BW8010 primer repair, BW6-9528 waterproof membrane and BW0-8029 exposed topcoat

System build-up

Three-Layer Roof Build-Up

Concrete primer repair, hand-applied polyurea membrane and exposed polyaspartic topcoat are reviewed as one concrete roof waterproofing system.

  1. 01
    BW8010 Concrete Primer & Repair Base

    Concrete sealing, adhesion support and quartz-sand repair base

  2. 02
    BW6-9528 Hand-Applied Polyurea Membrane

    Main hand-applied polyurea waterproof membrane

  3. 03
    BW0-8029 Protective Topcoat

    UV-resistant exposed polyaspartic topcoat

Layer function

What Each Layer Solves

Each product layer has a specific job: BW8010 prepares and repairs the concrete bonding base, BW6-9528 forms the main hand-applied waterproofing membrane, and BW0-8029 protects the exposed roof surface.

BW8010 concrete primer repair roof detail over prepared concrete substrate
01

BW8010 CONCRETE PRIMER & REPAIR BASE

Seals concrete and supports adhesion.

Main Function
Seals the prepared concrete roof substrate and supports adhesion for the hand-applied membrane.
What It Solves
Porous concrete absorption, surface dusting, weak bonding, pores, uneven areas and larger voids that need local repair before waterproofing.
Key Advantage
Can be used as a concrete primer and can also be blended with quartz sand for scrape leveling, pore filling and larger void repair.
BW6-9528 hand-applied polyurea membrane detail on concrete roof
02

BW6-9528 HAND-APPLIED POLYUREA MEMBRANE

Forms the main hand-applied membrane.

Main Function
Forms the main continuous and flexible hand-applied polyurea waterproofing membrane over the prepared concrete roof.
What It Solves
Leakage paths on repaired roof areas, weak points around details, minor substrate movement and projects where plural-component spray equipment is not convenient.
Key Advantage
Brush, roller or high-pressure airless spray application helps create waterproofing continuity on small or medium concrete roof areas and detail zones.
BW0-8029 exposed polyaspartic topcoat complete build-up over hand-applied polyurea membrane
03

BW0-8029 PROTECTIVE TOPCOAT

Protects the exposed membrane surface.

Main Function
Provides exposed surface protection for the BW6-9528 hand-applied membrane.
What It Solves
Outdoor UV exposure, weathering, surface aging, color aging and long-term exposed roof surface protection needs.
Key Advantage
Helps improve exposed roof durability and surface maintainability while keeping BW6-9528 as the main waterproofing membrane.

Long-term roof protection

How This System Helps Reduce Common Roof Problems

Hand-applied concrete roof waterproofing is often used on small or medium roof areas, repaired roof zones and detail-rich areas where spray equipment is not convenient. Common risk points include pipe roots, drains, parapet corners, roof cracks, local pores, voids and uneven concrete. This system uses BW8010 primer / repair base, BW6-9528 hand-applied polyurea membrane and BW0-8029 protective topcoat to help build adhesion, fill local defects, form a continuous hand-applied waterproofing layer and protect the exposed roof surface.

Prepared concrete roof substrate before BW8010 primer repair and hand-applied polyurea membrane
01

Prepared Concrete Roof Substrate

Concrete roof waterproofing starts from a clean, dry and repaired concrete substrate. Small or medium roof areas, repaired zones, pipe roots, drains, parapet corners, cracks, pores, voids and uneven concrete should be reviewed before hand application begins.

Reference: substrate repair, cleaning, dryness and detail inspection.
02

BW8010 Concrete Primer Repair

BW8010 helps seal prepared concrete, reduce uneven absorption and support adhesion before the hand-applied membrane. It can also be blended with quartz sand for scrape leveling, pore filling, honeycomb repair and local uneven concrete correction in repair zones.

Reference: A:B = 1:2 by weight; confirm primer use and quartz-sand blending according to substrate porosity and repair scope. BW8010 concrete primer repair packaging Product usedView BW8010 ->
BW8010 primer mortar concrete roof repair before hand-applied polyurea membrane
BW6-9528 hand-applied polyurea concrete roof waterproof membrane
03

BW6-9528 Hand-Applied Polyurea Membrane

BW6-9528 forms the main continuous hand-applied membrane by brush, roller, scraper or compatible hand-application method. This workflow helps cover detail-rich areas such as pipe roots, drains, parapet corners, cracks and repaired roof zones where spray equipment is not convenient.

Reference: main waterproofing membrane; brush, roller or high-pressure airless spray application depending on project conditions. BW6-9528 hand-applied polyurea membrane packaging Product usedView BW6-9528 ->
04

BW0-8029 Exposed Polyaspartic Topcoat

BW0-8029 is the exposed protective topcoat over the BW6-9528 membrane. It helps support UV weathering resistance, surface durability, color stability and maintainability on exposed concrete roof repair areas.

Reference: exposed protective topcoat; final topcoat design depends on exposure level, color requirements and number of coats. BW0-8029 Polyaspartic Topcoat packaging Product usedView BW0-8029 ->
BW0-8029 exposed polyaspartic concrete roof topcoat over hand-applied polyurea membrane

Technical data center

Technical Data Center

Key technical parameters extracted from the BW8010 primer repair, BW6-9528 hand-applied polyurea membrane and BW0-8029 exposed polyaspartic topcoat product data.

BW8010 Concrete Primer Repair Key Data

ItemTest standard / referenceResult
Solid content Product data reference >=98%
Mixing ratio By weight A:B = 1:2
Theoretical coverage 100 um DFT 0.2 kg/m2
Dry concrete adhesion ASTM D-3359 3.5 MPa or substrate broken
Pot life 25 deg C / RH 50% 0.5 h
Surface dry time 25 deg C / RH 50% <=3 h
Primer mortar option Quartz sand blend Scrape leveling, pore filling and larger void repair

BW6-9528 Hand-Applied Membrane Key Data

ItemTest standard / referenceResult
Solid content Product data reference >=80%
Product data DFT reference Application guide 300-1000 um general product application reference
Concrete roof system membrane thickness System planning Not less than 1.2 mm for this concrete roof waterproofing system
Theoretical coverage 500 um thickness 0.75 kg/m2
Application methods Application guide Brush, roller or high-pressure airless spray
Concrete adhesion HG / T 3831-2006 3.3 MPa
Tensile strength ASTM D-412 17 MPa
Elongation ASTM D-412 400%

BW0-8029 Exposed Topcoat Key Data

ItemTest standard / referenceResult
Recommended DFT Application guide 30-60 um per coat
Exposed roof topcoat design Project exposure reference About 120 um total thickness depending on exposure requirements and number of coats
Theoretical coverage 60 um DFT 0.10 kg/m2
Recoating interval 20 deg C Min 3 h; max 24 h
Application methods Application guide Hand brush, roller, air spray or airless spray
Tensile strength ASTM D-412 20 MPa
Elongation rate ASTM D-412 200%
Accelerated aging GB / T 14522-1993, 1000 h Gloss loss <1; chalking <1

The above reference data is summarized from laboratory testing, product technical information and practical project verification. Final coating thickness, quartz sand use, consumption and application conditions should be confirmed according to substrate condition, repair scope, exposure level, project specification and the latest technical data sheet.

Quality control

Application & Quality Control

Quality control should focus on prepared concrete readiness, BW8010 primer repair, BW6-9528 membrane continuity and BW0-8029 exposed-surface condition before handover.

01

Concrete Substrate Readiness

Confirm the prepared concrete roof substrate before primer repair.

  • Surface strength
  • Dryness and cleanliness
  • Pores or larger voids
  • Drains, parapets and equipment bases
02

Primer Repair & Membrane Continuity

Control BW8010 repair work and BW6-9528 hand-applied membrane continuity across roof areas and details.

  • Primer coverage
  • Quartz-sand mortar repair
  • Continuous membrane film
  • Target membrane thickness
03

Topcoat & Handover

Review the BW0-8029 exposed topcoat and final concrete roof condition before delivery.

  • UV-exposed topcoat finish
  • Recoat timing
  • Detail repair confirmation
  • Final inspection records
Inspection focus
  • Prepared concrete substrate
  • Primer mortar repair
  • Detail zones
  • BW6-9528 membrane continuity
  • BW0-8029 exposed topcoat finish

Suitable roof conditions

Suitable Roof Conditions

Use this section to check whether the roof fits a prepared-concrete primer repair + hand-applied polyurea membrane + exposed polyaspartic topcoat system.

  1. 01

    Prepared Concrete Roof Waterproofing

    Prepared concrete roof substrates can be reviewed when surface strength, dryness, cleaning and local repair are ready before primer application.

    Check before specification: strength / dryness / cleaning

  2. 02

    Concrete Roof Repair Areas

    Small or medium concrete roof repair areas are suitable when pores, uneven areas and larger voids can be repaired with BW8010 primer mortar before membrane work.

    Check before specification: pores / voids / local leveling

  3. 03

    Concrete Parapets and Upturn Details

    Concrete parapets and upturn details can be treated as part of the same hand-applied waterproofing build-up.

    Check before specification: upturn height / corners / continuity

  4. 04

    Drains, Penetrations and Equipment Bases

    Drains, penetrations, equipment bases and inner corners are suitable for detail-focused hand application around concrete roof geometry.

    Check before specification: drains / penetrations / bases

  5. 05

    Exposed Concrete Roof Surfaces

    Exposed concrete roof surfaces requiring UV-resistant surface protection can use BW0-8029 as the exposed polyaspartic topcoat over the main membrane.

    Check before specification: UV exposure / color / topcoat finish

Do not finalize material consumption or film thickness from roof area alone. Confirm concrete substrate preparation, detail repair scope, membrane thickness, topcoat color and project conditions before specification.

Before you request a quote

Before You Request a Quote

Share the prepared concrete roof condition and project targets so the BW8010 + BW6-9528 + BW0-8029 hand-applied system can be reviewed before material planning.

Prepare the concrete roof basics first.

A useful concrete roof system quotation starts with substrate condition, repair scope, detail zones and target performance, not only the roof area.

Photos or drawings of parapets, drains, penetrations, equipment bases, pores and voids can help review the build-up faster.

  • Roof area
  • Prepared concrete substrate condition
  • Small or medium repair scope
  • Pores or larger voids
  • Drainage condition
  • Concrete parapets
  • Drains and penetrations
  • Equipment bases
  • Inner corners
  • Target membrane thickness
  • Topcoat color requirement
  • Project location
  • Construction timeline
  • Required documents

After these details are ready, use the inquiry form below to request a concrete roof system review.

FAQ

FAQ

Common questions about using the BW8010 + BW6-9528 + BW0-8029 system for prepared concrete roof waterproofing and detail repair.

Is this system designed for concrete roof substrates?

Yes. This system is designed for prepared concrete roof substrates, including concrete roof waterproofing, small or medium concrete roof repair and detail work around parapets, drains, penetrations, equipment bases and inner corners.

What does BW8010 do in this concrete roof system?

BW8010 is the concrete primer and repair base. It seals prepared concrete, supports adhesion and can be blended with quartz sand for local pore filling, scrape leveling and larger void repair before the BW6-9528 hand-applied waterproofing membrane is applied.

How is quartz sand used with BW8010 for concrete repair?

BW8010 can be blended with quartz sand as a putty-like primer mortar for scrape leveling, pore filling and larger void repair on prepared concrete roof areas before membrane application.

Why use BW6-9528 as the main hand-applied membrane?

BW6-9528 is the main flexible hand-applied polyurea waterproof membrane in this system. It forms the waterproofing layer over the prepared concrete roof substrate and can be applied by brush, roller or high-pressure airless spray.

Does this system require plural-component spray equipment?

No. This system is designed for concrete roof projects without specialized plural-component polyurea spray equipment. BW6-9528 can be applied by brush, roller or high-pressure airless spray.

What concrete roof details are suitable for hand application?

Concrete parapets, upturns, drains, penetrations, equipment bases and inner corners are suitable detail zones for hand application when the concrete has been prepared and repaired correctly.

Why does the system use BW0-8029 exposed topcoat?

BW0-8029 protects the exposed surface against UV, weathering and color aging. It is used as the UV-resistant exposed polyaspartic topcoat over the main membrane.

Can this hand-applied system be used for large concrete roof areas?

This hand-applied system is more suitable for small or medium concrete roof areas, repair zones and detail waterproofing where plural-component spray equipment is not convenient. For large-area fast application, the spray polyurea concrete roof waterproofing system may be more suitable.

What is the typical coating thickness for this hand-applied roof system?

For concrete roof hand-applied waterproofing, BW6-9528 is the main waterproofing membrane and is recommended at not less than 1.2 mm. The typical overall coating system thickness is about 1.42 mm when using about 100 um BW8010 primer repair, at least 1.2 mm BW6-9528 hand-applied polyurea membrane and about 120 um total BW0-8029 protective topcoat design. Final thickness should be confirmed according to substrate condition, repair scope, exposure level and project specification.

What is the expected service life of this waterproofing coating system?

Based on laboratory testing and practical project verification, this waterproofing coating system is designed to support up to 20 years of service life when properly installed on suitable concrete substrates and maintained according to project requirements.