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「Melamine vs. Phenolic Film-Faced Plywood: How to Match Adhesive Class to Pour Count」は日本語ではまだご利用いただけません

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Related Reading

Pro Form WBP phenolic film-faced plywoodVinawood's flagship EN 636-3 phenolic-glued formwork panel — up to 20 reuse cycles, the right call when the spec calls for Class 3 bond.
Form BasicEntry melamine-glued (WBP MUF) panel for short-cycle EN 636-2 programs — up to 10 reuses at the melamine price tier.
Form ExtraPremium melamine-glued panel (still EN 636-2) with a heavier phenolic film face that delivers up to 15 reuses thanks to the face system, not the core adhesive.
Film-faced plywood vs MDO vs HDOCompanion guide on the surface-finish system and how MDO and HDO fit the formwork conversation alongside film-faced film/glue choices.
Phenolic plywood guideDeeper read on phenolic chemistry, why the cross-linked PF resin is water-insoluble, and where it fits in the wider plywood landscape.
WBP glue plywoodBackground on what "WBP" actually certifies (boil-water-proof bond test under EN 314) and how WBP MUF and WBP PF differ inside that umbrella.

Quick Answers

Is melamine the same as phenolic?
No. They are different adhesive chemistries. Melamine glue is melamine-urea-formaldehyde (MUF) resin, water-resistant under normal use, EN 314 Class 2 / EN 636-2. Phenolic glue is phenol-formaldehyde (PF) resin, fully cross-linked and water-insoluble, EN 314 Class 3 / EN 636-3. Both are used in real fit-for-purpose film-faced plywood; they sit at different points on the cycle-count and exposure envelope.
Is phenolic film-faced plywood always better than melamine?
No. Phenolic is the right call for long-cycle infrastructure work, exposed sites, or jobs that explicitly call for EN 636-3. Melamine is the right call for short-cycle programs (8 pours or fewer), covered slab forming, and budget-controlled work where the spec is EN 636-2. Buying phenolic for a 6-cycle job is overspending — you pay for cycles 9-20 you never run.
What is the disadvantage of melamine film-faced plywood?
Melamine-glued panels are EN 636-2 / Class 2: they handle humid, ventilated environments and short reuse cycles well, but they degrade fast when exposed to standing water, when edges aren't sealed, or when panels sit assembled across a wet weekend. The realistic envelope is up to 10-15 cycles under disciplined site conditions, dropping faster under rough handling. Use them where the application stays inside that envelope.
Can phenolic film-faced plywood be reused?
Yes. Phenolic-glued panels with a heavy phenolic film face deliver up to 20 reuse cycles when stripped within the post-pour window, edges sealed before the first pour, stored flat off the ground, and not abused at the edge with crowbars. On a real site with mixed crews and midweek weather, expect 60-80% of the catalogue figure — bid the program against the realistic number.
How many times can melamine film-faced plywood be reused?
Catalogued reuse for melamine-glued panels with a heavy phenolic face film is up to 10-15 cycles. Field performance typically lands at 60-80% of the catalogue figure depending on site discipline. Form Extra (Vinawood) reaches the higher end of that range thanks to a heavier film overlay and tighter veneer grading, while still being EN 636-2 — the higher cycle count comes from the face system, not the core adhesive.