Backroll Spraygate is the pocket engineer for painters, foremen, and coating technologists — precise layer calculations, spray equipment matching, and control of the physico-chemical processes behind every application.
Every module is scoped to a real job-site problem — not a generic feature list. Dial in the numbers before you open a drum.
Convert target dry film thickness into wet film thickness and back, factoring in volume solids and expected transfer efficiency.
Match tip size, fan pattern, and pump pressure to your material's viscosity class — thin, medium, or thick — before you load the gun.
Track viscosity readings, ambient temperature and humidity, and flash/cure windows so every coat follows the same controlled process.
Estimate liters or kilograms required per job from surface area, coverage rate, coat count, and a realistic wastage allowance.
No signal on the site, no problem. Every calculator and log runs entirely on-device — nothing depends on a connection.
Numbers formatted the way a foreman actually needs them — clean readouts you can call out loud on a noisy floor or copy to a report.
This is a simplified version of the math running inside the app. Enter your job numbers and get liters required plus a matched tip and pressure range.
Figures are a simplified field estimate. The full app adjusts for gun type, distance, and environmental loss.
🖌️ We're painters and coating technologists first, software people second. Backroll Spraygate started as a set of scribbled formulas on job-site clipboards and grew into a utility built by people who have mixed the batch, held the gun, and answered for a coat that came out wrong.
🎯 Our mission is simple: put precise layer calculations, honest equipment matching, and real process control in the hands of the person actually doing the work — no lab, no spreadsheet, no guesswork required between the mix room and the wall.
📊 What the app gives you is instant wet/dry film thickness math, a viscosity-to-nozzle-to-pressure matcher pulled from real spray behavior, and a running log of the physico-chemical conditions — temperature, humidity, flash time, cure window — that decide whether a coat holds up or fails early.
⚡ Fewer redos, less wasted material, coatings that pass inspection the first time.
Backroll Spraygate: Lay it down once. Lay it down right.
Backroll Spraygate collects nothing. We do not gather your name, email, location, photos, or any other personal identifier. The surface areas, coverage rates, viscosity readings, and equipment selections you enter into the layer calculator, matcher, and process logs are never transmitted anywhere — they exist only inside the app on your device.
Because nothing is collected, nothing is analyzed, aggregated, profiled, or sold. There is no dataset of your project figures sitting on a server for us to use, license, or share with advertisers or anyone else.
All calculations, saved equipment presets, and process-control logs are stored locally in the app's own sandboxed storage on your phone or tablet. There is no cloud sync, no remote backend, and no database on our end holding a copy of your job data.
Backroll Spraygate does not embed advertising networks, analytics SDKs, crash trackers, or social widgets. The app does not phone home, and no third party ever receives data generated by your use of the calculators or matching tools.
Since your project figures never leave the device, there is no transmission in transit to intercept and no remote server to compromise. Standard operating-system sandboxing keeps the app's local storage as protected as any other data on your device.
Backroll Spraygate is a professional trade utility and is not directed at children. Because the app does not knowingly collect data from anyone, of any age, it aligns with COPPA and comparable regulations by design, not by exception.
There is no account to register, log into, or delete, because none exists. To remove your locally stored calculations, equipment presets, or process logs, simply clear the app's storage or uninstall it — everything tied to it leaves your device at that point.
If our practices ever change, we will update this page and revise the Effective Date above. Continued use of Backroll Spraygate after an update constitutes acceptance of the revised policy.
Questions about this policy can be sent to privacy@backrollspraygateapp.com.
🔧 Found a spec that doesn't match your gun, have a feature request from the field, or just want to talk coatings? Write in — we're painters too, and we read every message ourselves.
⏱️ We read every message and typically respond within 24–48 hours.