Ledger · 2026-09-04 · Materials Science
Formaldehyde-Free Tannin-Furanic Rigid Foam via Phytic Acid Synergistic Crosslinking
Rejected
This concept did not clear the framework. The reasoning is published in full below.
What the assessment found
| Incumbent benchmark | Rigid Polyurethane Foam (RPUF) |
| Entry application | factory-manufactured, fire-rated core insulation for structural sandwich panels |
| Measured advantage | >2.8x improvement in Limiting Oxygen Index (LOI >70% vs RPUF ~24.8%) |
| Time to first revenue | 24 months |
| Gross margin at parity | 11.9% |
| Startup CapEx | $350,000 |
| Payback from first sale | 14.3 months |
| Capital productivity | 10.05x |
| Regulatory risk | Moderate — qualification costs reported ($150,000 estimated) |
Why it failed
- Voided by: Mismatched comparison, Capital and time to revenue, Economics undisclosed, Form-factor / handling regression, Absence search missing
- Margin fails the operating-cost check
Assessment
The concept fails multiple mandatory venture gates, as explicitly conceded in the report: gross margins are ~12% (below 70%), CapEx is $350,000 (exceeds $250,000), and time to revenue is 24 months (exceeds 18 months). Furthermore, it fails form factor parity due to severe handling regressions versus liquid PU, and lacks a structured Market Absence Ledger with numeric counts.
Also flagged
- Evidence rests on non-peer-reviewed sources
- Duplicate references inflating the evidence base
- Price parity asserted, not sourced
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