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Polyaspartic Weather-Resistant Protective Topcoat

BW0-8029

BW0-8029 is a two-component aliphatic polyaspartic topcoat for prepared concrete, metal and compatible coating systems requiring weather resistance, color retention and a protective finish. Confirm adhesion to the underlying layer, applied thickness and exposure conditions; waterproofing and corrosion protection depend on the complete system.

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Finished white polyaspartic protective topcoat on an exposed roof surface

Product Description

BW0-8029 is a two-component aliphatic polyaspartic protective topcoat for prepared compatible coating systems. Its listed properties support review for color retention, outdoor weather exposure, wear resistance and resistance to specified chemical media. Final performance depends on substrate and intermediate-coat compatibility, surface preparation, applied thickness, curing conditions and service exposure.

BW0-8029 Part A and Part B product packaging

Application Scope

BW0-8029 is used for anti-corrosion, protective and decorative coating on reinforced concrete and metal structure surfaces.

  • Reinforced Concrete SurfacesReview for prepared reinforced concrete surfaces where decorative protection and weather resistance are required.
  • Metal Structure SurfacesReview for prepared metal structures requiring anti-corrosion protection and exposed decorative finish.
  • Protective Decorative FinishUse as a thin exposed topcoat where color, gloss, chemical exposure and service conditions must be confirmed.
  • Aromatic PU or Polyurea TopcoatCan be reviewed as a topcoat over compatible aromatic polyurethane or polyurea coating surfaces.

Designed for Decorative Protection on Concrete and Metal

BW0-8029 helps applicators build a tough, glossy and color-stable polyaspartic topcoat over properly prepared reinforced concrete or metal surfaces. It is a suitable choice when the project needs decorative appearance, weather resistance, chemical-resistance review and thin-film finish planning.

17 MPaTensile StrengthReport sample result tested to GB/T 16777-2008.
2000 hArtificial Aging ResistanceReport sample result under GB/T 1865-2009: chalking grade 0, color change grade 2, gloss loss grade 2.
1000 hSalt Spray ResistanceReport sample result under GB/T 10125-2021: no blistering, rusting, cracking or peeling.
0.10 kg/m²Coverage at 60 μmGives a listed theoretical coverage reference for coating quantity and finish planning.

Product Features and Advantages

BW0-8029 supports thin-film protective decoration, helping applicators create a dense, glossy and weather-resistant topcoat with color stability, adhesion compatibility and anti-corrosion surface protection.

Film Formation and Application

  • Tough Dense Decorative FilmForms a tough, dense, full and bright coating with strong color appearance.
  • Weather and Color StabilityDesigned to resist color change, yellowing, chalking and aging while maintaining gloss and color retention.
  • System CompatibilityShows good compatibility with polyurethane, epoxy, chlorinated rubber, alkyd and phenolic coatings after project review.
  • Thin-Film Topcoat PlanningUse the listed 0.10 kg/m² at 60 μm theoretical coverage as a planning reference, then confirm final film build by TDS and project conditions.

Protection Performance

  • Wear Resistance and Impact RequirementsThe cited abrasion result can inform coating selection. Obtain supporting data for any project-specific impact requirement.
  • Chemical ResistanceProvides chemical-medium resistance review for acids, alkali and salts under the listed test conditions.
  • Anti-Corrosion PerformanceSupports anti-corrosion protection for compatible reinforced concrete and metal structure surfaces.
  • Water ResistanceThe cited report records no cracking, delamination, tackiness, blistering or disintegration after the 23±2°C, 14-day water-resistance test.
  • Service-Life SupportConsider the coating's durability and maintenance requirements when assessing the service life of the complete protective system.

Technical Data

The following product and application values are technical references. Where report sample results are shown, their source and test conditions are identified separately. Confirm the current TDS, SDS and project requirements before specification or application.

Product Information

These component and application values are references from company technical information. Part A and Part B values are listed separately; they are not results for the mixed sample tested in the report below. Confirm the current formulation and application requirements with the latest TDS.

Product data table
ItemPart APart B
AppearanceLight yellow liquidColor adjustable
Density (g/cm³)1.051.32
Viscosity (cps) @ 25°C350320
Solids content (%)7588
Mix ratio (by weight)11
Surface dry time (h)1-3 h
Recoating interval (h)Minimum 3 h · maximum 24 h (20°C)
Theoretical coverage (DFT)0.10 kg/m² film thickness: 60 μm

Physical Properties

Selected results from the company’s retained BW0-8029 test report (JXT202640800ZY0356, dated 8 May 2026). Results apply only to the tested material sample under the stated test conditions. They do not guarantee the performance of every batch or service condition. Request the complete report and confirm the suitability of the current product and compatible coating system before specification.

Physical Properties — report sample results
Test item and conditionsTest methodSample result
Tensile strengthGB/T 16777-200817 MPa
Elongation at breakGB/T 16777-2008300%
Pencil hardness (scratch)GB/T 6739-2022B
Abrasion loss (1000 g, 1000 r, CS-10)GB/T 1768-20060.049 g
Artificial weathering (2000 h)GB/T 1865-2009; GB/T 1766-2008No blistering, rusting, cracking or peeling; chalking grade 0, color change grade 2, gloss loss grade 2

Chemical Resistance

Selected results from the company’s retained BW0-8029 test report (JXT202640800ZY0356, dated 8 May 2026). Results apply only to the tested material sample under the stated test conditions. They do not guarantee the performance of every batch or service condition. Request the complete report and confirm the suitability of the current product and compatible coating system before specification. Changes in the medium, concentration, temperature or contact time require a separate compatibility assessment.

Chemical Resistance — report sample results
Test item and conditionsTest methodSample result
Water resistance (23±2°C, 14 d)T/CWA 204-2021No cracking, delamination, tackiness, blistering or disintegration
Salt spray resistance (1000 h)GB/T 10125-2021; GB/T 1766-2008No blistering, rusting, cracking or peeling
Humidity resistance (1000 h)GB/T 13893-2008; GB/T 1766-2008No blistering, rusting, cracking or peeling
Acid treatment (10% H₂SO₄ solution, 168 h)GB/T 16777-2008Tensile strength retention 109%; elongation at break 300%; no cracking when bent at −40°C
Alkali treatment (0.4% NaOH solution + saturated Ca(OH)₂ solution, 168 h)GB/T 16777-2008Tensile strength retention 107%; elongation at break 290%; no cracking when bent at −40°C
Salt treatment (10% NaCl solution, 168 h)T/CWA 204-2021; GB/T 23446-2025Tensile strength retention 109%; elongation at break 300%; no cracking when bent at −40°C

Application Environment and Guide

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

Application Environment

Product data table
ConditionRequirement
Ambient temperature-5°C to +35°C
Relative humidity≤85%
Dew-point marginSubstrate temperature must be at least 3°C above the dew point.

Application Guide

Product data table
Guide itemRecommendation
Application methodBrush or roller
Air sprayAir pressure 0.3-0.5 MPa
Airless spraySpray pressure 15-20 MPa
Recommended DFT30-60 μm
Recoating interval≥3 h; product information table lists max 24 h at 20°C
Mixing ratioPart A:Part B = 1:1 by weight
Mixed-material handlingPrepare only the amount needed and use the mixed coating after uniform stirring
Moisture controlSeal opened material to prevent moisture absorption and avoid water, alcohol, acid or alkali contact during application
Theoretical coverage reference0.10 kg/m² at 60 μm; final film build according to the latest TDS and project requirements

Application Note

  • Agitate Part B uniformly before application.
  • Mix Part A and Part B according to the required ratio and agitate uniformly before application.
  • Reseal the original component containers promptly after dispensing to prevent moisture absorption. Use mixed material within the specified pot life.
  • Keep the application site dry and clean, and avoid contact with water, alcohol, acids and alkali during application.

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 times depend on temperature and relative humidity. The times in the table are references for application scheduling; confirm readiness for service with the current TDS and actual site curing conditions.

Product data table
Substrate temperatureSurface dryFoot trafficReference curing period
+10°C4 h12 h7 d
+20°C2 h8 h7 d
+30°C1 h4 h7 d

Shelf Life & Packing

Product data table
ItemDetails
Shelf life from date of manufacturePart A: 10 months · Part B: 10 months, original package sealed
Storage temperature+5°C to +35°C
Packing40 kg/set (Part A 20 kg/drum + Part B 20 kg/drum)
Packaging requirementKeep the product package tightly sealed
Storage precautionStore in a cool, ventilated place and avoid direct sunlight

Product Health and Safety Information

Product Health and Safety Information

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.

Technical Data Notice

The values on this page are technical references or identified report sample results, as stated in each section; they are not a project warranty. Actual performance depends on substrate condition, application, film thickness, curing and service exposure. Confirm the latest approved TDS, SDS and project requirements before use.

BW0-8029 Frequently Asked Questions

Review the main product, substrate, decorative protection, application and document questions before specifying or ordering BW0-8029.

BW0-8029 is a two-component high-performance anti-corrosion decorative topcoat based on an aliphatic polyaspartic resin prepolymer as the main film-forming material.

The technical sheet lists anti-corrosion, protective and decorative coating on various reinforced concrete and metal structure surfaces, and use as a topcoat over compatible aromatic polyurethane or polyurea coating surfaces.

No. BW0-8029 should be reviewed as a thin decorative protective topcoat in a compatible coating system, not as the sole main waterproofing membrane.

The product information table lists theoretical coverage of 0.10 kg/m² at 60 μm film thickness and a recoating interval of minimum 3 h and maximum 24 h at 20°C.

Report JXT202640800ZY0356 lists tensile strength of 17 MPa, elongation at break of 300%, abrasion loss of 0.049 g (1000 g / 1000 r, CS-10), and artificial weathering for 2000 h. Review each test method, condition and result together; these are results for the tested sample.

Before use in contact with drinking water, request dedicated health-safety documentation for the specific product and complete coating system. The report cited on this page does not include a drinking-water-contact test; suitability requires a separate project assessment.

Request the latest TDS, SDS, application guidance, available test data and project-specific coating-system recommendation before ordering BW0-8029.

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