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Sealers
Mixing - 14044_243

Builder 3&2 Volume 02 - Construction manual for building structures
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applied.   If   staining   is   not   warranted,   natural (uncolored)  filler  is  applied  directly  to  the  bare  wood. The filler may be colored with some of the stain to accentuate the grain pattern of the wood. To  apply,  you  first  thin  the  filler  with  mineral spirits to a creamy consistency, then liberally brush it across the grain, followed by a light brushing along the grain. Allow it to stand 5 to 10 minutes until most of the thinner has evaporated. At this time, the finish will have lost its glossy appearance. Before it has a chance to set and harden, wipe the filler off across the grain using burlap or other coarse cloth, rubbing the filler into the pores of the wood while removing the excess. Finish by stroking along the grain with clean rags. All excess filler must be removed. Knowing  when  to  start  wiping  is  important.  Wipng too  soon  pulls  the  filler  out  of  the  pores.  Allowing  the filler to set too long makes it hard to wipe off. A simple test for dryness consists of rubbing a finger across the surface. If a ball is formed, it’s time to wipe. If the filler slips under the pressure of the finger, it is still too wet for wiping. Allow the filler to dry for 24 hours before applying finish coats. Masonry Masonry fillers are applied by brush to bare and previously   prepared   (all   loose,   powdery,   flaking material  removed)  rough  concrete,  concrete  block, stucco, or other masonry surfaces. The purpose is to fill the open pores in the surface, producing a fairly smooth finish. If the voids on the surface are large, you should apply two coats of filler, rather than one heavy coat. This avoids mud cracking. Allow 1 to 2 hours drying time between coats. Allow the final coat to dry 24  hours  before  painting. PAINT  MIXING  AND  CONDITIONING LEARNING OBJECTIVE: Upon completing this section, you should be able to describe the techniques used in mixing and applying paint. Most paints used in the Navy are ready-mixed, meaning  the  ingredients  are  already  combined  in  the proper proportions. When oil paint is left in storage for long periods of time, the pigments settle to the bottom. These must be remixed into the vehicle before the  paint  is  used.  The  paint  is  then  strained,  if necessary. All paint should be placed in the paint shop at least 24 hours before use. This is to bring the paint to a temperature between 65°F and 85°F. There are three main reasons to condition and mix paint. First, you need to redisperse, or reblend, settled pigment  with  the  vehicle.  Second,  lumps,  skins,  or other impediments to proper application need to be Table 8-3.—Mixing Procedures 8-8







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