Your Datapaq exports CSV.
Your customer wants a
cure certificate.
ProofKit bridges the gap in 30 seconds. Upload any oven profiler CSV, set your cure spec, and download a tamper-evident PDF certificate with thermal profile chart, hold time analysis, and SHA-256 integrity hashing.
Every Rework Job Is a Hit to Profit, Schedule, and Trust
"If you don't write it down, it never happened."
Per batch in Excel
Manually charting cure profiles, calculating hold times, and formatting proof documents for each batch. Multiplied by 10+ batches per day.
PMT vs oven air gap
"It is not uncommon to have one side of a part 50 degrees off from the other side." Timing from oven load instead of Part Metal Temperature is the #1 source of cure failures industry-wide.
Parts at risk of peeling
"Ten thousand parts in the market could start peeling after six months." Under-cured coating means recoating, stripping, scrapping, or product liability recall.
Documentation at most shops
"Bill has been here for 10 years, he knows what to do" is not acceptable to auditors. Most shops have no cure documentation at all. PCI certification adoption remains low.
Sound familiar?
Three Steps. Thirty Seconds.
Export CSV From Your Logger
Use your existing oven profiler. Export the temperature data as a standard CSV file.
Upload to ProofKit
Set your cure target, hold time, sensor uncertainty, and hysteresis. Or select a powder coating preset.
Download Cure Certificate
Receive a signed PDF with PASS/FAIL verdict, thermal profile chart, cure index, QR verification, and SHA-256 evidence bundle.
What Your Auditor Receives
- PASS/FAIL verdict -- clear, unambiguous cure determination
- Thermal profile chart -- time-temperature curve with target/threshold lines and shaded hold interval
- Cure specification box -- target temp, hold time, sensor uncertainty, hysteresis parameters
- Results box -- peak temperature, ramp rate, time-to-threshold, continuous hold duration
- Cure index -- percentage of required cure energy achieved
- Multi-zone analysis -- per-sensor breakdown for multi-thermocouple profiles
- QR verification code -- scan to verify certificate integrity online
- SHA-256 evidence bundle -- manifest with per-file hashes and root hash for tamper detection
- Original CSV preserved -- raw data included in evidence.zip for full traceability
Certificates Your Auditors Expect
ProofKit vs. The Alternatives
| Feature | ProofKit | Excel (Manual) | Datapaq EasyTrack | ElcoMaster / CurveX |
|---|---|---|---|---|
| Works with any CSV | Yes | Yes | No -- Datapaq only | No -- hardware-locked |
| Certificate in < 60 seconds | Yes | No -- 30-60 min | Varies | Varies |
| SHA-256 tamper evidence | Yes | No | No | No |
| Automated cure index | Yes | No -- manual calc | Yes | Yes |
| AI-powered analysis | Yes | No | No | No |
| QR verification | Yes | No | No | No |
| No software install | Yes -- web-based | Yes | No -- Windows app | No -- Windows app |
| Price | $149/mo | Free (labor cost) | $3,000-$15,000+ | $1,000-$3,000+ |
ProofKit Doesn't Just Validate. It Explains.
Result: PASS Peak Temp: 194.2 C Hold Time: 12.4 min Cure Index: 118% Ramp Rate: 6.8 C/min
Cure Validation Summary: This batch achieved full cure with 18% margin above minimum requirements. The 12.4-minute hold at 180C+ exceeds the 10-minute specification.
The 6.8 C/min ramp rate indicates efficient heat transfer. Peak temperature of 194.2C remains within the safe operating window -- no risk of overbake or yellowing for this powder chemistry.
Costs Less Than One Rework Job
Professional
- All industry templates
- AI-powered analysis
- No watermark
- Custom logo on PDFs
- SHA-256 evidence bundles
- Priority email support
Business
BEST VALUE- Everything in Professional
- Batch processing
- API access
- Multi-user accounts
- Custom report branding
- Phone support
ROI Calculator: Powder Coating
Frequently Asked Questions
How does ProofKit calculate cure index?
ProofKit integrates the time-temperature curve above the minimum cure threshold using the powder manufacturer's cure window. The cure index is calculated as the ratio of actual accumulated cure energy to the minimum required energy, expressed as a percentage. A cure index of 100% or higher indicates full cure. This matches the methodology used by DeFelsko and Datapaq systems.
How does sensor uncertainty affect the PASS/FAIL verdict?
ProofKit adds the declared sensor uncertainty to the target temperature to create a conservative threshold. For example, if your cure target is 180C and your thermocouple uncertainty is +/-2C, the conservative threshold becomes 182C. This ensures that a PASS verdict means the part actually reached cure temperature even in the worst-case sensor error scenario.
What is hysteresis and why does it matter for cure validation?
Hysteresis prevents false threshold crossings caused by sensor noise. ProofKit uses a default 2C hysteresis band: the temperature must rise above the threshold to start the hold timer, but must fall below threshold minus 2C to stop it. This prevents brief sensor fluctuations from splitting a single continuous hold into multiple short segments, which could cause a false FAIL.
Does ProofKit support multi-zone oven validation?
Yes. If your CSV contains multiple temperature columns (e.g., Zone 1, Zone 2, Zone 3, or multiple thermocouple positions), ProofKit analyzes each sensor independently and reports per-zone metrics. The overall PASS/FAIL verdict requires all zones to meet the cure specification. This is critical for convection ovens where different positions may have significantly different temperature profiles.
What does Qualicoat require for cure documentation?
Qualicoat requires oven temperatures checked each shift and full stoving curves run on test panels at least twice weekly. Documentation must include the time-temperature profile, target cure window, actual Part Metal Temperature (PMT), and PASS/FAIL determination. Non-compliance triggers warnings, mandatory corrective actions, and potential license suspension. ProofKit generates all of this from a single CSV upload.
Can I use ProofKit with any data logger brand?
Yes. ProofKit works with any CSV temperature log regardless of the hardware that produced it. Compatible loggers include Datapaq (Fluke), DeFelsko PosiTest OTL, Elcometer 215, CurveX 4, and any system that exports timestamp and temperature columns in CSV format. No proprietary software required -- that is the entire point.
Your next Qualicoat audit is coming. Be ready.
Upload your cure data. Download a certificate that holds up under inspection.
Validate Your Data →