NPMCA field guide · Public tools and downloads
Pavement Materials Calculators: Sealer, Crack Filler and Striping Paint
Calculate sealer, crack filler and striping paint from a measured scope and the exact product's documented basis. Enter rates, density, mix yield, allowance and package sizes yourself, then keep the readable formulas and source record with the bid.
Author: NPMCA · Updated · Version 1
Sources are checked; this is general education, not professional advice.
Photo: Kaboompics / Pexels, Pexels License
Before you start
- Measured net areas, crack dimensions or marking lengths/areas with units.
- Current selected product document and quantity/application basis.
- Your confirmed mix yield, allowance basis and actual purchase package sizes.
What you will finish with
- A validated material estimate with supplied/mixed and unit labels.
- A rounded purchase quantity and printable/exportable input/source record.
- A record that can be carried into the bid and checked against actual usage.
Source note: sources below were checked as of October 11, 2026. Product revisions, local rules and your written quotes control the actual job. Unknown costs stay blank.
Choose the product, units and measured scope
Choose the product before entering a rate. The calculators do arithmetic with your supplied inputs; they do not select products or supply generic coverage defaults.
Manufacturer/version and quantity basis
Record manufacturer, exact formulation, document revision and source/date. Label whether the published quantity is supplied product, mixed application material, wet-film paint or another explicitly stated basis.
Site exclusions and uncertainty
Enter net treatment areas after deductions for islands, concrete, buildings and excluded/damaged surfaces. Save measurement provenance and unresolved field questions; a quantity estimate cannot diagnose the site.
User-entered loss and package sizes
Enter an allowance only when you have a stated reason and evidence, and record actual package size. Apply the allowance once and round only the final purchase order.
Sealer gallons by area and coat
Calculate each area/coat pair separately, then add them. The selected product controls the rate and the mix; no fixed gallons-per-area default is supplied.
Gallons/area versus area/gallon
For a rate in gallons per square foot: gallons = area × rate. For coverage in square feet per gallon: gallons = area ÷ coverage. A square yard equals 9 square feet; convert the basis explicitly before using a per-square-yard rate.
Mixed material versus purchased concentrate
Base mixed gallons = the sum of the documented area/coat quantities. Purchased concentrate = mixed gallons ÷ the documented mixed yield per gallon of concentrate. Keep units and basis visible; dilution cannot be assumed.
Water, sand and additives under the selected mix design
Calculate water, aggregate and additives only from the approved recipe, with each ingredient's own units. Do not treat solid aggregate volume as automatically interchangeable with measured mix yield.
Crack filler pounds by measured geometry
Use segment geometry, not length alone. A pounds-per-foot result applies only to its declared reservoir and overband dimensions.
Length, width, depth and density
Convert length, width and filled depth to the same units: reservoir volume = length × width × depth. Convert the total to gallons or cubic feet matching the product density, then weight = volume × density.
Separate overband volume
Overband volume = length × overband width × thickness, modeled separately above the surface. Add it to reservoir volume without counting the same volume twice.
Published yield cross-check and test section
Cross-check against a published product yield with matching geometry and a measured test section. Crafco's calculator shows length, width, depth and overband inputs; its product selection is not a universal density.
Striping paint and layout quantities
Keep line and filled-area takeoffs by color. A second machine pass and a second specified coat are different concepts; count the required material only once.
Line length/width
Marked line area = length in feet × width in inches ÷ 12. Add each line group separately so different widths are not averaged into an unexplained rate.
Stencils and marked surface area
Add stencil, arrow, crosswalk and filled-symbol areas to the appropriate color bucket. Record the actual design and measured area rather than an assumed symbol size.
Film build, passes and solids basis
Use TDS area-per-gallon at the specified film build, or verify physical wet-film volume. For entered wet thickness in mils: gallons = marked square feet × 144 × (mils ÷ 1,000) ÷ 231. NIST confirms 1 US liquid gallon equals 231 cubic inches. A dry-film calculation additionally requires the verified volume-solids basis.
Layout dimensions require an approved design
The layout record is a quantity and dimension worksheet, not an approved site plan or ADA compliance certificate. Obtain the approved design and verify signs, routes and slopes separately.
Liquid Road uses its own specified system
Use the separately labeled Liquid Road view and its product-specific planning page. Resolve the actual road/parking-lot system before using a rate or mix input.
Link to the product-specific calculator view
Record supplied and mixed quantities separately, with each confirmed coat area. If the confirmed system requires a preliminary high-traffic treatment, measure that area separately from the full-lot coats.
Unresolved document/coat differences prevent automatic defaults
Manufacturer landing and technical documents have unresolved application/coat differences. This guide has no manufacturer-confirmed current system, so it supplies no preset coat schedule, dilution, aggregate grading or coverage.
Read, export and verify the estimate
Read the full formula, inputs and exclusions alongside the result. An arithmetically valid answer can still be wrong if the product basis or site measurement is wrong.
Ranges and rounded orders
If the source provides a usable range, calculate low/high quantities from its same-scope endpoints and explain the basis. Round final orders by actual package size; do not round intermediate geometry or rates.
Carry inputs into the bid
Save or print product/source, revision/date, measurements, coat or segment inputs, mix basis, allowance, package and result. Carry the same record into the pricing worksheet, alongside delivered unit costs.
Compare actual usage
Record actual product, mix, coat areas and material use after the job. Explain differences from the estimate before changing future assumptions or an allowance.
A clearly labeled arithmetic example
These are arbitrary training inputs entered only to demonstrate arithmetic. They are not a measured job, product specification, coverage recommendation or industry rate. Replace every assumed product input with your confirmed specification before bidding.
| Tool | Hypothetical entered inputs | Readable calculation | Arithmetic result before allowance/order rounding |
|---|---|---|---|
| Sealer | Net area 1,000 sq ft; one coat; assumed rate 0.1 US gal/sq ft | 1,000 × 0.1 | 100 US gal on the assumed entered basis |
| Crack filler | Length 100 ft; reservoir 0.5 in × 0.5 in; no overband; assumed density 10 lb/US gal | (100 × 12 × 0.5 × 0.5) ÷ 231 × 10 | Approximately 12.987 lb for that assumed geometry/density |
| Paint wet-film volume | Line length 100 ft; width 4 in; one specified coat at an assumed 15 mil wet thickness | (100 × 12 × 4 × 0.015) ÷ 231 | Approximately 0.312 US gal of theoretical wet-film volume; field/coverage basis must be confirmed |
Produce and verify a material estimate
Identify the scope and product
Record site/job ID, measured net areas or geometry, product, source/revision and quantity basis.
Enter compatible units and specifications
Use the selected rate, density, film build or documented mix yield with the calculator's labeled units.
Review the readable calculation
Check every coat/segment/color, separate overband and supplied/mixed outputs, and verify excluded areas and unsupported inputs.
Apply declared purchasing adjustments
Apply an entered allowance once and round the final order to the actual package size.
Export and field-check
Keep the input/source record with the bid, cross-check a test area/section, and record actual usage after work.
Public tools
Use these without an account. Enter your own measurements and quotes. Save records on this device or export a copy for your job folder.
Materials calculator
Use current manufacturer instructions for your exact product. All rates, allowances and package sizes are your inputs.
Approved mix components
Only from the selected mix design, per supplied gallon. Keep these components separate from the confirmed mixed yield.
Formula: sum of each coat area × its rate, plus specified partial-area treatment. Each coat uses net area unless you enter an override. Divide for area-per-gallon rates. If the specification rate is mixed material, divide application gallons by approved mixed yield for supplied gallons. If the rate is supplied product, application gallons are supplied gallons; multiply by yield for mixed gallons. Keep order basis separate. 1 sq yd = 9 sq ft.
Unit identities: NIST unit conversion tables, as of 2026-10-11. 1 US gallon = 231 cubic inches. Conversion constants do not establish product coverage. Excludes unsuitable pavement, unmeasured scope and material costs.
Records stay in this browser. Export before switching devices. Do not enter bank details, identification numbers or private customer information.
Your working record
Records stay in this browser. Export before switching devices. Do not enter bank details, identification numbers or private customer information.
Download the working documents
Version 1 · As of 2026-10-11. PDF for printing; DOCX and spreadsheets for editing. No email or membership required.
Tools you get as an NPMCA member
Confirmed access and plan limits
Optional member resources. Your plan and the member app determine access. The guide and its public tools work without membership.
Available catalog deals
These live catalog resources include practical tools, help and deals. Check each row's eligible plans and terms in the member app.
- PaveCare Navigator
Compare care price options for your membership and location. Confirm the selected service and final price with the provider. This tool is not insurance.
Plans: PaveCarePlus; NPMCA Business PavePro with PaveCarePlus. Catalog checked as of 2026-10-11.
- Deals, Perks & Savings
Browse member offers in NB Deals. Confirm account access and read the selected offer terms.
Plans: PaveCare; PaveCarePlus; NPMCA Business PavePro with PaveCare; NPMCA Business PavePro with PaveCarePlus. Catalog checked as of 2026-10-11.
- Travel — Member Hotel Rates
Member hotel booking with the current phone access shown in the app. Confirm the complete price and cancellation terms before booking.
Plans: PaveCare; PaveCarePlus; NPMCA Business PavePro with PaveCare; NPMCA Business PavePro with PaveCarePlus. Catalog checked as of 2026-10-11.
- More Travel Deals
Travel booking through the phone access listed in the member app. Check current booking terms.
Plans: PaveCare; PaveCarePlus; NPMCA Business PavePro with PaveCare; NPMCA Business PavePro with PaveCarePlus. Catalog checked as of 2026-10-11.
- LotDesk
Keep lots, quantities and proposals in one place. Open LotDesk from the member app home. An active business plan is required.
Plans: NPMCA Business Membership Only; NPMCA Business PavePro with PaveCare; NPMCA Business PavePro with PaveCarePlus. Catalog checked as of 2026-10-11.
- Business Tax Hotline
Help with business tax questions. This benefit does not process payroll or keep your books.
Plans: NPMCA Business PavePro with PaveCare; NPMCA Business PavePro with PaveCarePlus. Catalog checked as of 2026-10-11.
- Small Business Legal Plan
Business legal help under the plan terms. Confirm whether a particular question is covered and ask about fees before work begins.
Plans: NPMCA Business PavePro with PaveCare; NPMCA Business PavePro with PaveCarePlus. Catalog checked as of 2026-10-11.
- Credit & Collections
Tucker Albin referral help with unpaid business invoices. Active PavePro with PaveCare or PavePro with PaveCarePlus membership is required. Check provider terms; recovery is not guaranteed.
Plans: NPMCA Business PavePro with PaveCare; NPMCA Business PavePro with PaveCarePlus. Catalog checked as of 2026-10-11.
PaveCare health benefits are not insurance. Household access is an optional paid add-on. Compare membership plans.
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Frequently asked questions
Why do two sealers need different quantities?
Product formulation, application method, surface and published quantity basis differ. Use the selected product's current document and record its scope instead of assuming a universal rate.
Does the calculator show mixed gallons or purchased sealer?
Keep the selected basis visible. Mixed application gallons and purchased concentrate are separate outputs connected only by the entered documented mix yield.
How do coats change the estimate?
Calculate each coat on its own actual area and rate, then add the quantities. A partial treatment is not automatically a full-area coat.
Why can crack length alone give a poor estimate?
Weight depends on filled cross-section, overband where specified and product density. Length-only quantities hide geometry assumptions and can be misleading.
How do line width and paint film build affect gallons?
Wider lines increase marked area; film build changes required volume. Use coverage at the selected product's specified film thickness or a verified wet/dry calculation.
Does the layout tool prove ADA compliance?
No. It records quantities and dimensions for an approved design. Accessibility, signs, slopes, routes and local requirements need separate verification.
How much extra material should I order?
Use documented field evidence or an explicitly entered allowance with a reason, then round to package size. There is no unexplained default waste percentage or universal extra amount.
Can I save the inputs and sources with my bid?
Yes. Export or print the input/source record and keep it under the job ID with the bid. Preserve source revision/date and distinguish entered assumptions from observed measurements.
Related guides
Sources and corrections
- NIST Handbook 44—2026, Appendix C · As of 2026-10-11 · Exact US liquid gallon/cubic-inch and unit conversions; conversion constants are not coverage or product specifications.
- SealMaster: PMM product and linked technical documents · As of 2026-10-11 · Manufacturer-specific supplied/mixed, application and mix information; no rate is adopted as a generic default.
- Crafco: Material Calculators · As of 2026-10-11 · Geometry and product-specific material-calculator inputs, including overband; no universal density/yield is asserted.
- SealMaster: Acrylic Traffic Paint technical data, SMT-240 · As of 2026-10-11 · Revised 06/26/20; exact-product wet-film/coverage basis illustrates input provenance. Confirm revision for purchased material.
- SealMaster: Liquid Road for Parking Lots technical data · As of 2026-10-11 · Parking-lot system distinguished from roads and supplied versus mixed material; confirm current system with manufacturer.
- US Access Board: Guide to the ADA Standards—Parking Spaces · As of 2026-10-11 · Parking, access aisle, route, sign and slope concepts; quantities do not certify accessibility.
Found an error or an outdated source? Send NPMCA a correction with the page and source.
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