Executive Summary
21 comments on a coastal spec set on a desert fence.
Serrano Painting reviewed UFGS Section 09 90 00 (Paints and Coatings) for the TCA-4 Border Fence. The section reads as a Rio Grande Valley maintenance and repaint template lightly edited onto a new-build desert project, and that mismatch is the root of most issues. Nothing here says the 3-coat zinc / epoxy / polyurethane system is a bad idea. It says the section needs its internal conflicts reconciled, its substrate and environment confirmed, and its template leftovers removed. Several changes cut cost and schedule without lowering the durability bar.
The one-line version
The specified coating system is sound in intent. The spec document is the problem: it fights itself on surface prep, names a topcoat you cannot actually buy, and carries a coastal, repaint, building-spec pedigree onto a new desert bollard wall. Confirm two things, resolve the conflicts by RFI, and take the efficiency wins.
Resolve first
Two threshold questions
Everything else is easier once these are answered. Both are questions for the design team, and both can move cost.
Marine spec, desert site
The book requires "marine" coatings and cites TxDOT, but TCA-4 is arid Lukeville. Confirm the real site corrosivity (ISO 12944 / SSPC). A marine-grade primer regime is likely more than the site needs, a real simplification lever, while the topcoat stays high-UV and abrasion resistant.
Bare steel, not galvanized
The governing paint table is a bare-steel system (SP 6 blast + inorganic-zinc primer). The galvanized-prep paragraph tables no coating and is an orphan. Confirm the bollard steel is raw steel so 3.3.3 can be scoped out, and do not blast-and-zinc-prime any galvanized elements.
Group A
Errors & internal conflicts
Best resolved by RFI or clarification to the Designer of Record. Most are spec-editing artifacts, not disagreements about the system.
Group B
Value engineering
Efficiency, cost, and schedule wins that still meet the owner's durability intent. These mirror how Sundt is already commenting on the concrete and aggregate specs.
Group C
Editorial cleanup
Template carryover that adds ambiguity and bid risk. Low-effort, pure goodwill.
Internal only · do not send to Sundt
SPI strategy notes
Competitive posture, not project VE. Keep these out of the matrix and the executive summary that go to the GC.
SSPC QP 1 and the three-projects / three-years experience requirement are barriers that keep weaker painters out of the bid. Only relax QP 1's award-timing gate (item B7). Do not soften the experience bar.
Opening the product list helps our sourcing and schedule, but hands competitors the same flexibility. If SPI already has a preferred MPI-listed manufacturer locked, consider softening to "or approved equal at the CO's discretion" rather than a broad open.
Flagging the 05 50 14 zinc-chromate conflict shows we read the whole book, which builds trust, but it is outside our section. Raise it lightly and let the design team own it.
What goes to Alfredo: the comment matrix (Word) and the executive summary (Word). Both are written GC-safe. This dashboard and this panel stay in-house.