Ledger · 2026-09-04 · Materials Science / Photopolymer Chemistry
Ultra-Low Stress Thiol-Ene Photopolymer Conformal Coatings (USTE-CC) via Step-Growth Radical Photopolymerization
Rejected
This concept did not clear the framework. The reasoning is published in full below.
What the assessment found
| Incumbent benchmark | HumiSeal UV40 |
| Entry application | high-reliability aerospace and defense printed circuit boards (PCBs) |
| Measured advantage | >2.1x reduction in polymerization shrinkage stress (1.0-1.2 MPa vs 2.5-2.6 MPa for HumiSeal UV40) |
| Time to first revenue | 18 months |
| Gross margin at parity | 88.2% |
| Startup CapEx | $125,500 |
| Payback from first sale | 0.1 months |
| Capital productivity | 199.01x |
| Regulatory risk | Moderate — qualification costs reported ($85,000 estimated) |
Why it failed
- Voided by: Absence search missing
- Absence asserted, search unreported
Assessment
The concept demonstrates strong scientific backing and a >2.1x reduction in shrinkage stress against the market leader HumiSeal UV40. However, it fails because it lacks a structured Market Absence Ledger section with numeric search metrics and named finds. Additionally, the report acknowledges significant commercial barriers regarding shadow cure deficiencies and aerospace qualification timelines.
Also flagged
- Duplicate references inflating the evidence base
- Price parity asserted, not sourced
- runsheet_no_quantities
A rejection is not a claim that the science is wrong. It means the venture case did not survive: the comparator was not what the buyer actually buys, the comparison was not like-for-like, the advantage fell short of a step change, or the capital and time to first revenue were prohibitive.
Assessed 2026-09-04 against seven gates plus the voiding sub-tests. How the method works · Browse all concepts