Plywood is an ideal material for concrete forming. It produces smooth surfaces and can be used repeatedly – some overlaid panels up to 200 times or more. The thinner panels can be bent easily for curved forms and liners. Plywood’s excellent stiffness minimizes deflection during pouring. It’s natural insulating qualities help proved more consistent curing conditions. The large panel size …
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November, 2022
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22 November
Specifying the right plywood for concrete formwork
Manufacturers produce various grades of plywood form panel products, often treated with a release agent, for most general concrete-forming applications. Concrete formwork may represent close to half the cost of a concrete structure. For cost-effective building, contractors select forming panels that will stand up to the job and to multiple uses. Member manufacturers of APA−The Engineered Wood Association produce a …
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22 November
Chinese Structural Composite Lumber (SCL) inspection,testing and sourcing
Structural Composite Lumber (SCL)What is Structural Composite Lumber Structural composite lumber (SCL) is a family of engineered wood products created by layering dried and graded wood veneers, strands or flakes with moisture-resistant adhesive into blocks of material known as billets, which are subsequently resawn into specified sizes. SCL includes laminated veneer lumber (LVL), parallel strand lumber (PSL), laminated strand lumber …
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22 November
Chinese Medium Density Overlay (MDO) Plyform Concrete Form Panels inspection,testing and sourcing
Medium Density Overlay (MDO) PlyformMedium Density Overlay (MDO) Plyform Concrete Form PanelsSpecial proprietary MDO Plyform is available for concrete forming. Regular MDO, or MDO – General, is intended for use as a paint surface and should not be used for concrete forming. Panels are typically overlaid on only one side, although they can be produced with MDO on both sides. …
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22 November
High Density Overlay (HDO) Plyform concrete forming panels inspection,testing and sourcing
High Density Overlay (HDO) PlyformHigh Density Overlay (HDO) Plyform concrete forming panelsThis Plyform panel meets the same general specifications as Plyform Structural I or Class I. All classes of HDO Plyform have a hard, semi-opaque surface of thermosetting phenolic resin-impregnated material that forms a durable, continuous bond with the plywood. During plywood production, these overlays are bonded to the plywood …
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22 November
Chinese Hardwood &Baltic Birch Plywood inspection,testing and sourcing
Hardwood-faced plywood is used for a myriad of interior work from cabinetry to trim; from store fixtures to architectural panelling and feature work. Available in a wide variety of face species and core variations, hardwood plywood has the ability to take many types of stains and finishes to complete any millwork project. Baltic (also known as Russian) Birch plywood is …
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22 November
CHINA Marine-Grade Plywood INSPECTION,TESTING AND SOURCING
Marine-grade plywood is used where exposure to dampness or weather may impede the performance of regular fir or spruce plywood. Marine-Grade plywood is composed of 100% Douglas fir veneer, bonded with waterproof exterior grade phenolic resin adhesive. Typically, fir marine-grade plywood is of a good 2 side composition, with an “A” grade face and a “B” grade back. The common …
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22 November
B-B and B-C Plyform Concrete Form Panels INSPECTION,TESTING AND SOURCING
B-B and B-C Plyform Concrete Form PanelsB-B and B-C Plyform Concrete Form PanelsNonoverlaid Plyform is usually made with B grade veneer face and B or C grade veneer back and referred to as “B-B Plyform” or “B-C Plyform.” These panels are available as Structural I or Class I. The panels are sanded on both sides and treated with a release …
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22 November
Degrade Plywood inspection,testing and sourcing
Degrade Plywood Degrade plywood is an economical alternative where structural requirements are not necessary. Degrade panels are a “downfall” product from the manufacture of #1 sheathing and have defects in them that preclude them from being graded as structural sheathing under CSA standards 0121 or 0151. These defects may include: sheets off-square, out of thickness, missing edge veneer on one …
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22 November
China Fire-Retardant Treated Plywood inspection,testing and sourcing
Fire-retardant treated plywood is used where the Ontario Building code requires this type of plywood as part of a rated assembly for fire separation in construction. sheathing grade plywood treated with Dricon® fire retardant. Dricon® is the recognized leader in fire-retardant protection and has been specified by architects and engineers for decades. The Dricon® process utilizes hygroscopic salt compounds which …
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