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Melamine vs. Phenolic Film-Faced Plywood: How to Match Adhesive Class to Pour Count

Melamine vs phenolic film-faced plywood: on formwork quotes, melamine usually means MUF core glue (EN 636-2, not Class 3) and phenolic means PF core glue (Class 3) or the face film. One table of Vinawood grades with reuse ratings, and when to choose each core.


▶Key Takeaways
In film-faced formwork plywood, melamine usually means MUF core glue and phenolic means PF core glue or the phenolic face film; they are separate parts of the sheet. MUF-core grades (Eco Form up to 6, Eco Form Plus up to 8, Form Basic up to 10, Form Extra up to 15) are EN 636-2, not Class 3. PF-core Pro Form Lite (up to 15) and Pro Form (up to 20) are Class 3. Match the core to pour count, exposure and the class on the drawing.
Melamine vs. Phenolic Film-Faced Plywood: How to Match Adhesive Class to Pour Count

See "melamine" on a film-faced plywood quote? Nine times out of ten it's the MUF glue (melamine-urea-formaldehyde) in the core, whereas "phenolic" might be PF core glue or might just be the film on the face. MUF cores are EN 636-2, not Class 3, good for short and mid-length jobs; PF cores are Class 3 and pay off once pours get long, wet and exposed.

That's the whole answer in two sentences. The trouble is that the two words get used loosely on quotes, and a buyer who reads "phenolic film-faced" can end up with an MUF core when the engineer wanted Class 3, or pay for Class 3 on a footing that'll see six pours. So: words first. Then one table with every grade, and some plain talk on picking.

Three things people call melamine

"Melamine plywood" can mean three different things depending on who's selling. This article's about the first, MUF core glue, spread between plies. Water creeping into a saw cut or tie hole meets it first, and how it reacts is the whole story. You read it on the bond-class line of the data sheet, never from the colour of the face.

Second comes melamine face film, a resin-soaked paper laid on the surface as an overlay. Some light-duty panels use it. Ours don't; every Vinawood film-faced formwork panel carries a phenolic face film, whatever glue sits underneath. Third is decorative melamine laminate, the printed paper you see on kitchen and shop-fit boards, and it has nothing to do with forming concrete. Confuse it with MUF glue and you get that tired line about "melamine means interior only."

MUF (melamine) core vs PF (phenolic) core film-faced plywood

GradeCore glueClassFace filmReuseTypical usePrice
Eco FormMUF (Eco)EN 636-2, Class 2Phenolic film, 165 gsmUp to 6Short, cost-led programmes, covered workOn request
Eco Form PlusMUFEN 636-2, Class 2Phenolic film, 165 gsmUp to 8Short programmes with a little more marginOn request
Form BasicMUF (standard)EN 636-2, Class 2Phenolic film, 165 gsmUp to 10Mid-length residential and commercial formingOn request
Form ExtraMUF (Superior Glue)EN 636-2, Class 2 (not Class 3)Same phenolic film as Form BasicUp to 15Longer programmes where Class 3 is not specifiedOn request
Pro Form LitePF (WBP phenolic)EN 636-3, Class 3Phenolic film, 165 gsmUp to 15Class 3 specs on mid-length programmesOn request
Pro FormPF (WBP phenolic)EN 636-3, Class 3Top-grade phenolic film, 125 gsmUp to 20Long pour programmes, wet and exposed sitesOn request

Choose MUF core or PF core: a quick decision

Choose MUF-core when:

  • the panel will see a contained number of pours, roughly up to 6 to 15 depending on grade
  • the slab is covered or the forms dry quickly between uses
  • the drawing names EN 636-2 or leaves the class open

Choose PF-core when:

  • the engineer has specified EN 636-3 or Class 3
  • forms stand assembled in rain or sit wet for days between pours
  • you're planning a long programme and want ratings up to 15 (Pro Form Lite) or up to 20 (Pro Form)

What actually changes inside the panel

Both resins are hot-pressed, and both make a water-resistant bond, which is why both carry the WBP label. Soak the glue line for days on end and the gap opens up. PF cures harder and won't dissolve, so a PF core hangs on soak after soak. Damp air with a breeze through it? MUF shrugs that off, and EN 636-2 is basically written around it. Edges and holes are where trouble starts on both, so seal them.

Inside the MUF family the recipe matters too. Form Basic and Form Extra wear the same phenolic face film, yet Form Extra is rated up to 15 uses against Form Basic's 10, and the reason is the glue: Form Extra uses our Superior Glue MUF. It's still EN 636-2 and still not Class 3. People sometimes assume the extra cycles come from a heavier face, and they don't.

Which brings up the most common RFQ mistake we see. A buyer writes "phenolic film-faced" and thinks that covers bond class. It doesn't, because the film and the core glue are two separate parts of the sheet. Film meets concrete and decides how the wall looks. Glue is what's left holding plies once water gets behind the face. Name both on the RFQ.

How to pick without overspending

Count pours first. Every rating we publish is a pour count, after all. If a job will run eight pours, a Class 3 panel rated up to 20 means paying for twelve cycles nobody uses. Flip it around and the risk is worse. An MUF panel put on a long, rain-soaked infrastructure pour can delaminate at the tie points mid-programme, and the stripping, patching and schedule slip cost more than the PF panel would have.

Exposure comes next. A covered slab with a quick turnaround suits an MUF core well. Forms left standing through a wet season, or programmes where panels go back up still damp, point to PF. And the drawing settles it: if EN 636-3 is written down, there's no MUF substitute, however good the face looks.

Our reuse figures are maximums under good site care, which is why we write them as "up to". Crews that strip on time, seal every cut edge, store panels flat and off the ground, and skip the crowbar get close to them with either glue. Crews that don't will fall short on both. PF doesn't make a panel immune to abuse, and an MUF panel matched to its programme isn't a compromise.

Where this fits in the wider range

Every grade in the table above is film-faced formwork plywood with a phenolic face, so choosing between them is really a choice of core glue and core grade. If you're in North America and your crews talk about overlays rather than film, the HDO vs MDO comparison covers that side, including our HDO grades. For more on PF bonding, read phenolic plywood, and for what the WBP label does and doesn't promise, see WBP plywood. The film-faced collection lists sizes and thicknesses for every grade.

Quoting with Vinawood

We've made formwork plywood in Vietnam since 1992 and ship around 5,000 containers a year to 55+ countries through Hai Phong. Veneers are plantation-grown Acacia, Eucalyptus and Hevea, and every sheet is inspected individually before bundling. Product pages for Form Basic, Form Extra, Pro Form Lite and Pro Form carry the data sheets.

For a quote, tell us the pour count, whether the forms will be covered or exposed, the EN 636 class on the drawing, and the thickness and sheet size. We'll match a grade and price it on request. Send it through the RFQ form or contact us directly.

Category

guides

▶Sources & References (3)
  1. EN 636 Plywood — specifications — CEN (2015)
  2. EN 314-2 Plywood — Bonding quality — CEN (1993)
  3. Phenolic plywood: grades, bond classes and formwork — Vinawood (2026-09-28)

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Quick Answers

What is the difference between film faced and phenolic plywood?
Film faced names the surface, a phenolic resin film pressed onto the panel, while phenolic plywood can mean that film or a phenolic (PF) glue in the core. The two do not always come together, because a phenolic film can sit over a melamine (MUF) core that is rated EN 636-2. Only a PF core reaches EN 314 Class 3 and EN 636-3, so ask for the bond class on the datasheet instead of judging by the face.
Is melamine the same as phenolic?
No. In formwork plywood, melamine usually means MUF resin in the core, which reaches EN 314 Class 2 and EN 636-2, while phenolic means PF resin rated Class 3 and EN 636-3. Both are used in real film-faced panels, but they suit different pour counts and different exposure on site. The colour of the face film tells you neither, so read the bond class line.
What does melamine mean on a film-faced RFQ?
The word covers three different things, so name the layer you mean. It can be the MUF core resin used in Eco Form Plus, Form Basic and Form Extra, a melamine paper face found on some light-duty panels elsewhere, or decorative laminate for cabinets, which is not a formwork product at all. Every Vinawood film-faced formwork panel carries a phenolic face film, so on our range the melamine or phenolic decision is really a choice of core glue.
How many times can film-faced plywood be reused by glue class?
On MUF cores, Form Basic is rated up to 10 reuses and Form Extra up to 15, both at EN 636-2. On PF cores, Pro Form Lite is rated up to 15 and Pro Form up to 20, both at EN 636-3. Those figures are maxima under good site care, and on a mixed crew with wet weather it is safer to plan on roughly 60 to 80 percent of the catalogue number for either glue.
Is phenolic film-faced plywood always better than melamine?
No, because the right panel depends on the job rather than on the stronger-sounding resin. PF suits long programmes, weather-exposed forms and any drawing that names Class 3, while MUF fits short and mid-cycle work under cover at EN 636-2. Paying for a PF panel on a six-pour covered slab buys cycles the job will never use.
Is Form Extra phenolic Class 3?
No. Form Extra uses Superior Glue MUF in the core and is rated EN 636-2, and its extra reuse comes from that glue chemistry rather than from a heavier face film. If the engineer has specified Class 3, choose Pro Form Lite or Pro Form, or HDO Standard or HDO Premium in the North American range.