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1.Cover your plywood and elevate it off the ground during the construction process. Many types of lumbered materials take on water damage if they are not covered with a tarp during heavy rainstorms. Be sure to put a heavy weight on top of the tarp so that it does not blow off during the storm. Plywood that is in storage should also have its panels kept flat and level with finish faces pointed away from the elements. 2.Apply a weather-protective stain or a water-repellent preservative by using a paintbrush to the plywood prior to its installation into the home or building project. It is also recommended to apply a coat of mold killing or mold protection in order to prevent mold growth as the plywood is exposed to heating and cooling as well as humidity and water vapor. Applying water repellents is also important during the construction process when heavy rains can fall multiple times a week during the summer season. Flat subfloors should be treated during construction in order to help prevent swelling and delamination. 3.Apply an outdoor, latex-based paint to plywood in order to provide more protection that will have a more aesthetic appearance than traditional stains. If the plywood is going to be subject to constant abrasion, such plywood sheets used for skateboard ramps, stain, however, will provide a more resistant and durable protective coating than paint. Be sure to coat all sides of the plywood. 4.Install tar paper underneath the plywood in order to protect the edges and underside from water that may seep through cracks on skateboard ramps. Other options for skateboard ramps, recommended by XtremeSkater, is to use spare urethane or polyurethane to provide a protective finish. The spare urethane is the "most heavy duty" paint available and will cover about 500 square feet per gallon. If you are using multiple layers of plywood to build a skate ramp, then it is also advisable to coat the underside of each layer as well as the top and sides.

Plywood is a sheet material manufactured from thin layers or "plies" of wood veneer that are glued together with adjacent layers having their wood grain rotated up to 90 degrees to one another. It is an engineered wood from the family of manufactured boards which includes medium-density fibreboard (MDF) and particle board (chipboard). All plywoods bind resin and wood fibre sheets (cellulose cells are long, strong and thin) to form a composite material. This alternation of the grain is called cross-graining and has several important benefits: it reduces the tendency of wood to split when nailed at the edges; it reduces expansion and shrinkage, providing improved dimensional stability; and it makes the strength of the panel consistent across all directions. There are usually an odd number of plies, so that the sheet is balanced-this reduces warping. Because plywood is bonded with grains running against one another and with an odd number of composite parts, it is very hard to bend it perpendicular to the grain direction of the surface ply. Smaller thinner plywoods and lower quality plywoods (see Average-quality plywood photo below and right) may only have their plies (layers) arranged at right angles to each other, though some better quality plywood products will by design have five plies in steps of 45 degrees (0, 45, 90, 135, and 180 degrees), giving strength in multiple axes. Article From https://en.wikipedia.org/wiki/Plywood

Plywood is one of the least expensive and most versatile woods available for use in your home. With a little effort and experimenting, you can turn this product into a beautiful addition to your decor, whether as furniture or flooring. Read below to learn how to finish plywood in a variety of ways. Painting Plywood 1.Decide what color you want the final plywood to be. 2.Purchase a quality primer. Plywood is very porous. By using a primer, you will reduce the coats of paint needed and insure a better final outcome. 3.Ask your paint retailer to tint the primer to a similar shade as the paint you've chosen. 4.Lightly sand the plywood and dust well with tack cloth to remove all dust from the surface to be painted. 5.Roll primer on plywood with roller-style brush to achieve a smooth finish and avoid brush marks. Allow to thoroughly dry. Review your work to determine if second coat of primer is needed. If you can see the wood easily through the primer, apply another coat. 6.Complete with final top coat of paint color of your choice. Faux-Barnwood Floor Finish 1.Prime the floor. To achieve a wide plank look, use a 4 or 6 inch roller or brush. A brush will give a more rustic appearance. 2.Paint with base coat, typically a color with a yellow undertone. 3.Follow with top coat color, a dark red or mahogany shade of paint will give the most authentic finish to your plywood floor. 4.Allow the imperfections of your paint job stand, they will add to the rustic look of this faux-finish. 5.Let paint cure for several days prior to daily use. Create a Faux-stain Finish With Paint 1.Prime with primer tinted to your base coat, a light honey or yellow toned paint. 2.Paint the surface with your base coat. 3.Tape off widths to create the look of wood planks. Measure and tape sections, working with every other section. This will make the width of planks uniform. 4.Apply one long line of darker paint to one section. 5.Quickly drag wood graining tool through the wet paint, lifting and rocking to create knots. 6.Wipe rocking tool clean of excess paint and go to next section. 7.Allow paint to thoroughly dry and remove tape. 8.Lay new tape over completed sections to expose sections that were taped so you can paint those next. 9.Continue this process until plywood is covered. 10.Allow to dry thoroughly.

August FPI FPI floor index and index report was released, FPI Composite Index for three consecutive months below the threshold ...... Recently released August FPI30 index and FPI State Forestry forest floor index report International Trade Center. The report shows that in August FPI30 index and index both fell slightly FPI floor has three consecutive months is below the ups and downs of the watershed, and is the lowest level since the same period FPI release. Show FPI30 index represents companies and FPI advantage forest floor represents the index of business activity showed the advantages of floor contraction trend, rising underpowered, forest products manufacturing production and management difficulties highlighted. August, FPI30,, Composite Index was 45.2%, down 1.8 percentage points from July, constitute FPI30 index 5 sub-index 1 liter 3 down a level. Among them, the supplier delivery time index was 50.0%, and in July was flat, closing at a critical value; production index value of 42.3%, down 1.5 percentage points lower than in July, three months in a row located below the critical value, display August production tightening trend was; below the main raw materials inventory index was 40.4 percent, down 11.7 percentage points lower than in July, but fell to a critical value, display significantly reduce the amount of raw materials inventory in August; employees index was 46.2%, down from 1.7 in July points, four consecutive months below the critical value at the display business and employment reduction compared with July. Overall, only the supplier delivery time index is a critical value, the other four indices were below the critical value, the supply-side and demand-side weakness persists, rose underpowered. August back above the critical value of the order backlog, orders in hand showed a rising trend, becoming the only bright spot in the index. The report analyzes, FPI30 index represents the advantages of forest enterprises at home and abroad, new orders continued to show a downward direction, and the international market orders lower than the July; in case of insufficient demand, the company's production of mood is not high, the lack of effective supply-side stimulus ; the same time, raw material procurement enthusiasm to continue to cool, purchasing index fell to its lowest point since six months; currently, the company is still mainly to the inventory, finished goods inventory reduction consecutive three months. Tight liquidity is still a major problem of troubled companies, specifically reflected in the ability to pay index for five months below the critical value, the funds have not been effectively alleviate tensions. FPI floor composite index was 47.5%, compared with July fell 0.1 percent, constitute FPI floor index 5 index 2 l 3 drop. Among them, the main raw materials inventory index, employing index, supplier delivery time index decreased significantly than in July; new orders index was 47.4 percent, up 3.0 percentage points for three consecutive months is below the critical value, indicate the amount of product orders from foreign customers continue to decline; production index is 50.0 percent, the first time in February rose to the position of the critical value, showing the advantages of flooring companies in August and July production was flat. FPI floor index is consistent with FPI30 index movements, each sub-index performance was slightly better than FPI30 index. Among them, the production index rose to a critical value, the new orders index decline narrowed, become blocked index fell sharply major contributor. Backlog of orders index above the threshold for two consecutive months at corporate orders in hand increased. But in August the advantages of flooring companies export orders index edged lower, below the threshold for two consecutive months at international market demand weakness highlights, corporate procurement initiative frustrated, low purchasing index. On the other hand, companies have to face rising raw material prices and shortages of funds, operating pressure diminished. FPI index started to decline since April, May, June accelerated decline, there are signs stabilized in July, but in August last year but did not exhibit the expansion trend, but slightly down, forest products manufacturing production and management difficulties highlighted. Each year in June, July is the traditional off-season forest products manufacturing, FPI index will follow lower; into August, the hot season coming to an end, "Golden September and Silver October," expected consumption season will lead to the production and operation of enterprises, in 2012 and 2013 August FPI index station back above the critical value. However, this year not only did not stop FPI index back to the critical value, but turned slightly lower, the market remains pessimistic. Enterprise reflect, as China's real estate market downturn, weak domestic consumer demand, product oversupply, poor sales; weak market, lack of demand, third quarter operating not optimistic about the market can look forward to rebound in the fourth quarter. Indicator of business in August to participate in the survey includes information on: Large Asian wood-based panels Group, Guangdong Rich Wood Technology Co., Ltd. Guangdong Weihua Corporation, Jiusheng Flooring Co., Ltd. Nanjing macro-resistant wood, Dekor laminate flooring factories, St. Danyang like wood factory, Sichuan Shengda Forestry industry industry Co., Ltd., Suzhou David Wood Co., Ltd., Zhejiang Quilted Wood Co., Ltd., Zhejiang Yongyu bamboo Industry Co., Ltd., Zhejiang Jiang Shiyou Timber Co., North American maple wooden furniture (Jiangsu) Co., Ltd. Changzhou Saili wood, big-Wood (Heilongjiang) Co., Ltd., Fujian longtai bamboo products Co., Ltd., Jilin Forest Industry Jinqiao flooring Group Co., Ltd., Linyi City Hanyu Dong to wood Ltd., Luli Group Co., Ltd. Guangdong Yiu Tung Chinese furniture plate, Guangxi Xiangsheng wood limited liability company, and even hung Industrial Co., Ltd. Hubei, Jiangsu Beier decoration materials Co., Ltd., Jiangsu Rocky wood Co., Ltd., Jiangsu magnolia wood industry Co., Ltd. on the Hai-Kun Hao Wood, Wood Suifenhe friendship (Group) Co., Ltd., Suifenhe City Xin Lin Wood Co., Ltd., Zhejiang Jia industry floor Co., Ltd. Zhejiang Hua Yunfeng new materials Co., Ltd., Shenzhen City Extension Qi Industrial Co., Ltd., Chengdu Asia Trading Company, Wenzhou Timber Group Limited.