How to identify rust stainsRust stains can look identical to tannin stains. However, there is a simple method toidentify stains associated with rust or oxidised iron. This involves applying “rust converter”to the stain. If the stain fades or disappears, the stain is caused by rust or oxidised iron. Ifthe stain is unaffected by the application of rust converter, the supplier …

Staining in FormplyThe most common stains associated with formply are: Rust stainingTannin stainingPinking – free phenol from the phenolic surface film.In the writer’s experience, most staining is due to rust deposits on the deck at the time ofpouring or iron in the aggregate. These stains appear red/brown and are often mistakenfor tannin staining.Tannin staining is the result of extractives from …

How to minimise Distortion (Bow and Twist) inFormply Do not use any new panels showing bow or twist out of the pack. Wheredistortion exceeds 30mm, these panels fail the product standard. They shouldnot be used and returned to the manufacturer.Prevent/Minimise Exposure to MoistureWhere formply panels that have been supplied flat on site distort, there is onlyone cause, this is exposure …

Wrap and Twist in FormplyAS 6669 provides a 30mm flatness limitation for formply sheets. To measure flatness,formply sheets are placed concave down on a flat surface and any bow or twist exceeding30mm above the flat fails the product Standard.In addition, sheets must be able to be pushed flat using “palm pressure”, of approximately15kg.Formwork plywood supplied to the market with flatness …

Stress-grades range from F7 to F34. Stress grades F11, F14, F17, F22 and F27 are the mostcommon.AS 6669 specifies four (4) surface qualities Class 2, Class 3, Class 4 and Class 5. Thesesurface qualities are aligned with AS 3610.The most common surface classes from AS 6669 for formply manufactured in Australasiaare: Class 2Class 3Good 1 side – Class 2 one …

Formply is usually sold on the basis of surface class, stress-grade and bond quality. Forexample “Class 2 F17 A Bond”.This indicates that the formwork plywood is intended to provide a Class 2 surface finish,has a stress-grade of F17 and has a Type A bond.AS 6669 permits three (3) bond types as follows: A Bond – Durable for 50 years weather …

Formply is manufactured from wood veneers glued with synthetic adhesives and overlayedwith “phenolic impregnated papers”, also called phenolic surface films. The phenolicsurface film is often referred as “plastic face”.The Australian Standard for formply is AS 6669 “Plywood Formwork”. This standardspecifies requirements for: Quality of the outer surface i.e. Class 2, Class 3 etc.Bond quality and durabilityThickness, length, widthFlatness at the …

Thickness = 9mm-18mm(Special order = 6mm-30mm)Panel sizes = 1220x2440mm, 1525x3050mm(Special order to max 1525x3660mm)Wide range of coloursHard-wearing, stippled surfaceUV-resistant (rated 6-7 according to DIN 54004)EN 636-3 (fully exposed exterior applications) This resilient laminated plywood is constructed from a strong, exterior-bonded birch plywood core with a polypropylene film applied to one or both faces. The covering is bonded to the core …

Covered in a hard-wearing UV-resistant melamine impregnated paper film that is chemically bonded under heat & pressure to a dimensionally-stable plywood core, melamine faced plywoods are tough, waterproof and scratch resistant. They are used extensively in the manufacture of furniture, kitchens & toys and installations such as shopfitting, exhibitions & displays, workshops & vehicle conversions. The coating has good colour …

White melamine decorative panel is made of birch plywood with improved face and core veneer. Both sides of the plywood panel are coated with uniform, white melamine film.  This plywood panelling is the ideal material for the furniture, joinery and interior industries. Its features provide high visual quality with smooth and superior surfaces that are ready for use. This is …