For architectural concrete
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Top Form formwork plywood premium 2500×1250, 18/21 mm
Top Form Plywood is a specialized premium-grade formwork plywood. A direct replacement for birch plywood. Designed as external sheathing for wall and slab formwork. A double-sided, black-brown phenolic film (PSF) weighing 400 g/m² ensures a perfectly smooth, aesthetic concrete finish, and the waterproof bonding with a special base layer allows the sheet to be used up to 60 times.
Cost-effective for large projects
Double-sided 400 g/m² phenolic film
Up to 60 uses
Basic data
Sheet dimensions
2500 x 1250 mm
Sheet thickness
18 / 21 mm
Coating
400 g/m² black-brown phenolic film (PSF)
Wood species
Rubberwood
Density
630 kg/m³ (+/- 3%)
Number of uses
up to 60 times
Bending strength (parallel to width / length)
50.0 N/mm² / 30.0 N/mm² (per EN 310:1993)
Average modulus of elasticity (parallel to width / length)
500 N/mm² / 3000 N/mm² (per EN 310:1993)
Delivery & Ordering Terms
Shipping to
All of Poland and EU countries
Delivery method
Full container and pallet loads, delivered directly to the construction site or to the recipient’s warehouse
Lead time
24–48h for items in stock
Minimum order
1 full pallet / min. 43–45 sheets
Regular customers
Individual pricing and payment terms — ask about an offer for contractors or distributors
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Top Form vs. other plywoods
Compare Top Form Plywood with other plywoods in a similar class.
Product viewed
Parameter
Top Form (product viewed)
EZ Form
Plus Form
Number of uses
up to 60 times
up to 40 times
up to 15–20 times
Wood species
Rubberwood
Rubberwood
Hardwood (mixed)
Coating
400 g/m² black-brown phenolic film (PSF)
130 g/m² black-brown phenolic film (PSF)
130 g/m² dark brown-red phenolic film (PSF)
Application
Large premium projects, exposed concrete, maximum durability
Versatile, economical applications, good concrete finish
Walls, slabs, foundations — universal use
Playwood type
Professional
Professional
Standard
Formwork plywood description Top Form
Top Form Plywood is intended for broad use as external sheathing for wall and slab formwork. Both sides of the sheet are covered with a black-brown phenolic film (PSF) weighing 400 g/m², ensuring perfectly smooth surface and a high-quality aesthetic concrete finish. Compared to alternative formwork plywoods, Top Form shows increased and more even bending stiffness, reducing unwanted deflection.
The sheet is made from cross-bonded veneers of rubberwood, joined with waterproof bonding using a special base layer, and meets the requirements of EN 13986 for wood-based panels used in construction.
Application
- external sheathing for wall and slab formwork,
- concrete formwork requiring a smooth, aesthetic face surface,
- structures where increased sheet stiffness and reduced deflection matter,
- projects requiring repeated (up to 40 times) use of the same formwork material.
Additional information
Top Form sheet edges are factory-painted black or grey. Panels are packed in crates with metal/plastic strapping, suitable for loading and unloading with forklifts.
Top Form Plywood is manufactured under certified ISO 9001 quality management and ISO 14001 environmental management systems.
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Top Form formwork playwood – questions and answers
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How is Top Form Plywood different from other premium plywoods?
Top Form is our highest, premium line of formwork plywood. It’s distinguished by a double-sided 400 g/m² phenolic film, a density of 630 kg/m³, and up to 40 uses – all parameters confirmed by the product’s technical datasheet. If you’d like to compare Top Form with a specific other product from our range for your project, get in touch – we’ll help you choose the right variant.
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How many times can Top Form formwork plywood be used?
Up to 60 times (2 sides, entire panel). The actual number depends on storage conditions, on-site use, and the use of release agents.
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What thicknesses of Top Form Plywood are available?
18 mm and 21 mm, at sheet dimensions of 1250 × 2500 mm (tolerance per EN 315:2000).
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What’s the difference between PF glue and standard MUF glue?
Phenol-formaldehyde (PF) glue withstands 72 hours in a boiling test — an aviation and marine-grade standard. Urea-melamine-formaldehyde (MUF) glue, used in standard plywoods, withstands only 6 hours. In practice, this means Top Form Plywood doesn’t delaminate even with prolonged contact with wet concrete, rain, and frost.
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What is HDO coating, and why does it eliminate the rippling effect?
HDO (High Density Overlay) is a coating made of impregnated cellulose fiber, 100% saturated with phenolic resin, pressed under very high pressure. Unlike painted coatings, HDO doesn’t penetrate the wood — it forms a hard, smooth membrane. It eliminates “rippling” (coating waviness after contact with water), which appears in cheaper plywoods and leaves marks on the concrete surface.
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Is Top Form Plywood suitable for architectural concrete?
Yes — the HDO coating ensures a smooth, uniform concrete surface without punch-through or wood-grain lines. However, we recommend making a test panel using the release oil planned by the architectural concrete designer, since the choice of release agent affects the final result.