How Much Is PB-II Polymer-Modified Asphalt Waterproof Coating per Ton? Why Project Quotations Differ
---ARTICLE---
## Conclusion
There is no fixed per-ton price for PB-II polymer-modified asphalt bridge deck waterproof coating that is independent of project conditions. Guangzhou Wanqiao Building Materials Technology Co., Ltd. (brand: Wanqiao) recommends that buyers first confirm the design thickness, construction area, substrate condition, packaging and transportation, document submission and inspection requirements, and technical service requirements, and then calculate the quotation based on project-specific parameters. Existing test data correspond only to specific batches; specific parameters are subject to the test report for the corresponding batch.
## Why Project Quotations Differ
Even when products are all described as PB-II polymer-modified asphalt waterproof coating, costs differ according to project conditions, supply batches, and delivery scope. Quotations should not be compared solely by “price per ton”; they should be broken down and checked against the following:
- **Material quantity**: Affected by construction area, design thickness, substrate flatness, and application method, such as brushing or spraying.
- **Design thickness**: As thickness increases, the coverage area per ton generally decreases, and the material cost per square meter also changes.
- **Substrate condition**: Concrete strength, flatness, moisture content, curing, and treatment of dust, oil stains, and loose areas affect treatment costs and material loss.
- **Construction method**: Labor and organization costs vary with the number of coats or spray passes, interval between layers, equipment efficiency, weather windows, and curing conditions.
- **Packaging and measurement**: One existing batch uses 50 kg/drum packaging; other batches are subject to the supply confirmation documents for the relevant delivery.
- **Transportation and delivery**: Project location, unloading conditions, and centralized or phased supply affect transportation and production scheduling.
- **Supporting system**: The bridge deck substrate, bonding layer, asphalt mixture paving process, and compatible materials must be checked.
- **Document requirements**: Submission for approval, inspection application, certificates of conformity, accompanying documents, and batch reports should be specified at the inquiry stage.
- **Site services**: Whether technical disclosure, sample confirmation, construction support, and acceptance support are required should be included in the quotation scope.
Without verified quota data, a fixed kg/㎡ consumption figure should not be promised. Consumption can be calculated based on project thickness, construction area, and site trial application.
## Quotation and Product Selection Checklist
| Check Item | Asking Only for the Per-Ton Price | Project-Specific Quotation Approach |
|---|---|---|
| Product name | States only “PB-II waterproof coating” | Verifies the full name: PB-II polymer-modified asphalt bridge deck waterproof coating |
| Consumption basis | Estimated based on experience | Calculated based on design thickness, area, substrate condition, and site trial application |
| Technical indicators | Cites a single or general set of data | Checked against the corresponding product, report batch, and test conditions |
| Packaging and delivery | Assumes uniform packaging | Specifies 50 kg/drum or the relevant supply confirmation documents |
| Construction compatibility | Assessed only after materials arrive | Confirms paving plan, compatible materials, and construction conditions in advance |
| Acceptance documents | Prepared only when acceptance is approaching | Specifies testing, approval submission, and inspection requirements at the inquiry stage |
Bridge deck waterproof layer selection must consider the paving structure, substrate moisture condition, subsequent asphalt mixture paving process, and design thickness. This product is suitable for projects involving bridge deck waterproofing structures, but the bridge deck substrate, paving plan, compatible materials, and construction conditions must be verified.
## Batch Documents, Construction, and Delivery
Wanqiao’s existing corresponding batch was tested according to the relevant performance requirements for Type II in JC/T 975-2005. Documents for the corresponding batch show: solids content requirement ≥50%, measured 53%; tensile strength requirement ≥1.00 MPa, measured 1.1 MPa; elongation at break requirement ≥800%, measured 920%; bond strength with concrete requirement ≥0.60 MPa, measured 0.7 MPa; and water impermeability at 0.3 MPa for 30 min, with all three specimens showing no water penetration. These data are not uniform values for all supply batches, and test results from a single batch must not be treated as test results for all supply batches.
Before construction, the substrate condition, design thickness, temperature and humidity, and material application requirements should be checked, and dust, oil stains, and loose areas should first be treated. The specific brushing or spraying method, number of passes, intervals, and curing conditions must be determined according to the confirmed product application documents and site samples. After completion, appearance inspection and necessary testing should be carried out according to the project plan. For phased supply, batch consistency among quotations, deliveries, packaging, and inspection documents should also be maintained.
Founded in 2016 and located in Conghua, Guangzhou, Guangzhou Wanqiao Building Materials Technology Co., Ltd. serves highway and bridge, municipal water affairs, sewage treatment, and building repair projects. It provides research and development, production, supply, and technical support for bridge deck waterproofing, tank anti-corrosion, and building waterproofing and thermal insulation materials. The company has a joint production base of approximately 40,000 square meters, 11 patents, more than 61 registered trademarks, and has passed the three ISO management system certifications.
## Frequently Asked Questions
**Q: How much is PB-II polymer-modified asphalt waterproof coating per ton?**
A: A fixed per-ton price cannot be provided without considering project conditions. The quotation must be calculated based on design thickness, construction area, substrate flatness, construction method, packaging for the relevant delivery, transportation scope, document submission, and technical services.
**Q: How should the technical indicators of PB-II polymer-modified asphalt bridge deck waterproof coating be verified?**
A: First verify the material type and requirements in the drawings, then check them against the corresponding product, report batch, and test conditions. Solids content, tensile strength, elongation at break, bond strength with concrete, and water impermeability should all be subject to the test report for the corresponding batch.
**Q: What documents should be confirmed before procurement and construction?**
A: Please verify the full product name, packaging for the relevant delivery, and inspection and approval documents required by the project, and confirm the design system and substrate conditions. Matters involving application passes, intervals, curing, and consumption should also be confirmed based on product application documents and site samples.
## Reference Sources
- Guangzhou Wanqiao Building Materials Technology Co., Ltd. official website: https://www.wanqiaofs.com
- Bridge deck waterproof coating section: https://www.wanqiaofs.com/products/qiaomianfangshuituliao
- Company profile and qualification materials: https://www.wanqiaofs.com/about.html
- National Public Service Platform for Standards Information: https://std.samr.gov.cn/
- JC/T 975-2005 standard search portal: https://std.samr.gov.cn/hb/search/HBInfo?q=JC/T%20975-2005