Yet … Demanding applications such as concrete forming, exterior siding and industrial containers require tough building materials. Panel Construction/Moisture Resistance: Basic HDO™ is high-density, 100/30 overlay on plywood with Douglas Fir/ Hemlock construction. Crown HDO panels are APA certified Struc-1 and meet or exceed APA’s Product Standard PS 1-09 for HDO Concrete Form. 1 0 obj
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The function of the overlay is to add stability, repel foreign HDO Plywood. © 2018 - 2020 APA – The Engineered Wood Association. This greater strength means that HDO … 1 HDO 1 HDO moderate grain/patch transference 100/100 G2S 1 MDO 1 MDO 1 HDO 1 HDO 120/30 G1S 1 MDO - Medium gloss with 2 HDO 1 HDO minor grain/patch transference 120/120 G2S 1 MDO 1 MDO 2 HDO Good-1-Side (G1S) panels have a backer sheet to inhibit moisture penetration and to help maintain dimensional stability. Estimates based on vertical and structural use; longevity will be lower for horizontal and/or architectural applications. Get the Plyform 5/8 in. Crown HDO Weights Crown HDO can be specified as either one or two sided panels with 100 or 120 weight pouring faces, and 30, 100 or 120 weight backs to … Roseburg's Duragard Premium MDO is a panel that has a layer of hardwood veneer directly under the smooth resin (water resistant phenolic) impregnated … Concrete forming grades are both ideal for reuse under the harsh conditions of concrete formwork; HDO leaves a smooth "steel-form" finish while MDO leaves a matte finish. However, overlaid sheets have an overlaid face that gives it a somewhat finished appearance. Demanding applications such as concrete forming, exterior siding, and industrial containers require tough building materials. Phone: 601-264-2962 Fax: 601-296-4766 HDO is available in two grades, Concrete Form and Industrial, and MDO is available in Concrete Form and General grades. Our hardboard is ideal for industrial applications that require a hard durable surface over a structural plywood substrate. Sanded The high-grade of sanded plywood faces provide a beautiful finish-quality surface for all kinds of applications. HDO is manufactured with more resin than MDO, but both are far more durable than standard plywood and are ideal for use in the most punishing of applications. Engineers have rounded-off weight calculations for plywood to square foot calculations, and have decided that, for engineering purposes, a generic square foot of 3/4-inch-thick hardwood plywood weighs 2.3 … How heavy the plywood is The weight of a plywood sheet will proportionally increase with increasing in width, length and thickness. Plywood sold as "void-free" does not have voids hidden in the wood layers. HDO High Density Overlay has a resin content of 52 to 58 percent and appears smoother to the touch than does MDO. January 1997 Plywood Design Specification APA The Engineered Wood Association PSE FR PRGM LBL CLEAR REG HYP x (i) (i) B P/R RTN R BST RND HYP - 1 SIN - 1 COS - 1 x 2 LN LOG % ON In addition, they retain plywood’s advantages, such as high strength-to-weight ratio, dimensional stability, and rack resistance, as well as plywood’s design flexibility. Hotels, high rise office buildings, museums, power plants, civil projects, and large-scale residential projects are common applications for HDO concrete forming panels. For in-depth information about HDO and MDO concrete forming and other applications, or to find manufacturers, visit APA's Performance Panels site. HDO is manufactured with more resin than MDO, but both are far more durable than standard plywood and are ideal for use in the most punishing of applications. These features place HDO and MDO among the most durable construction materials on the market today. True hardwood plywood is made with thin layers of 100 percent hardwood, which generally is stronger and harder and has a finer grain than softwood. Engineered Wood Technology Association (EWTA), USDA Forest Service Forest Products Laboratory. Spruce-Pine-Fir Plywood Sheathing 95402, 100-percent wood pressure-treatment and can be painted from The Home Depot Plyron is a hardboard face laminated to a plywood substrate. General grade MDO is manufactured to be an ideal paint base and is used for structural siding, soffits, and other exterior applications where long-lasting paint or coating performance is required. Page 4 of 7 V1.0 – 01/2008 HDO plywood is bonded with 100 percent water-resistant glue and has inner ply construction of C- … Pine plywood Sheathing, hdo plywood weight as 4 x 8, multiple reuses and concrete.... Ewta ), USDA Forest Service Forest products Laboratory USDA Forest Service Forest products Laboratory Struc-1 and meet exceed! 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