What is expiring in December 2026
Bostik has two product‑specific EPDs in the Backing Boards and Underlayments category (MasterFormat 09 28 00) that reach end of validity in December 2026. Products affected: COLFLEX CLP and NOVAFLEX GCP. Both are used as underlayment solutions beneath finished flooring to manage movement, sound, and durability.
These declarations were published under the French program INIES using the national addition to EN 15804. They appear as individual, product‑specific files rather than industry‑wide entries.
Are replacements live yet
As of April 20, 2026, we do not see newer EPD versions for COLFLEX CLP or NOVAFLEX GCP in public listings from Bostik or program‑operator sources. Bostik does publish other current EPDs across sealants, grouts, self‑levelers, and specialty systems, which signals active disclosure work. Example: a biobased hybrid multipurpose sealant EPD verified by IBU, valid to March 3, 2030 (IBU, 2025).
If a gap opens, where specs may pivot
For projects that require product‑specific EPDs, a lapsed declaration can push teams toward comparable underlayments with current documentation. Three credible options with live EPDs today:
- USG Levelrock SAM‑N series sound attenuation mats, valid until November 1, 2027 (ASTM program EPD, multiple SKUs covered) (ASTM, 2022).
- Unifloor Jumpax Acoustic underlayment system, valid until January 31, 2028 (Kiwa verification, EN 15804 A2) (Kiwa, 2023).
- REGUPOL rolls and sheets used as acoustic underlayments, valid until August 23, 2028 (IBU verification) (IBU, 2023).
These examples keep spec math clean for owners and GCs, which reduces back‑and‑forth during bid reviews.
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Program operator and scope notes that matter in specs
The expiring Bostik entries are under INIES and reference EN 15804 with the French national addition. Many North American alternatives use ASTM or IBU programs and either ISO 21930 or EN 15804 A2. That is okay. Comparability in practice depends on declared unit, modules covered, and PCR alignment. Specifiers should confirm cradle‑to‑gate modules at minimum and check declared thickness for mats.
Renewal timing and commercial risk
EPDs are often treated like passports at submittal time. When one is within a few months of expiry, risk tolerance drops and substitutions rise. That can mean lost placements even when product performance is solid. Renewal work typically takes weeks for data wrangling, verification, and publication, so starting by late Q2 avoids the crunch before December holiday slowdowns. Do not wait for the last mile when a single missing plant datum can stall approval.
What Bostik is communicating publicly
Bostik’s sustainability pages state that product‑specific and industry‑wide EPDs are available across key construction lines, including references to TCNA participation for grouts and mortars. Useful starting points for documentation hunts are their EPD explainer and the US sustainability hub (Bostik EPD page, 2026, Bostik US sustainability, 2026).
How to keep your options open now
Set an internal checkpoint for September 15, 2026. If replacements for COLFLEX CLP and NOVAFLEX GCP are not posted by then, alert sales and channel partners so submittal packages list a current EPD alternative for EPD‑required jobs. Update guide specs and architectural notes with the replacement SKUs, then revert once the renewed EPDs are live. It sounds simple, but this pre‑work is what keeps bids smooth when submittal reviews get picky.
A quick note for teams planning renewals
Pick the dominant PCR used by the products your customers most often compare against, line up primary data early, and schedule verification time with your chosen operator. The data work is where most timelines slip, not the modeling. A white‑glove collection sprint can shave weeks and prevent those last‑minute “can we get plant‑level electricity invoices today” emails that everyone definately dreads.
Want more on flooring underlayment EPDs
For broader market context on resilient and underlayment disclosures, see our snapshots on Resilient Flooring EPDs in the United States and our monthly EPD World Brief. These pieces surface the hot PCRs, renewal waves, and where competition is already publishing.
Bottom line for specifiers
Two Bostik underlayment EPDs reach the end of their validity in December 2026, and no replacement files are public yet. If those renewals land on time, nothing changes. If they do not, current EPDs from USG, Unifloor, and REGUPOL offer immediate continuity on EPD‑dependent projects. Timely renewals keep Bostik in the submittal stack without extra qualification calls.
