Staining and Finishing Wood (S12E23) | Preview | Ask This Old House

Hey Bruce great man your Bevin always good to be here so you heard the dilemma right Tommy built the table I promised them I'd get it finished yeah I don't want them yelling at me later the today great-looking table hey listen don't feel a lot of woodworkers they can make a dub tell joint but they panic when it comes to sanding and finishing so let's talk about finishing this wall yeah yeah we got some tips and techniques here they're gonna apply to anything whether it's unfinished furniture or something you made yourself okay all right first thing we got to talk about is wood preparation we got to get the wood ready for the stain and the finish first thing we're gonna do is a light sanding now I always stand in the direction of the grain of the wood yeah I like starting with about a 120 grit yeah maybe working up to 150 180 you're doing it by hand yeah you know what first of all built Sanders to aggress hay they get you in trouble okay palm Sanders they're okay on a large project but you know what you've always got your hand or if your hand sanding you got : controlled so maybe 120 up to a 150 or 180 180 all right second thing you have to recognize is Woods unpredictable those big pores can turn blotchy on you we don't want that to happen so we're gonna put on a coat of wood conditioner on your conditioner this is going to help reduce the blotchiness now does it matter what species of wood we're working with no but especially good on the especially important on the soft woods like fir pine spruce sure but even on your hardwoods it'll make a big difference but just lay it on I'll show you what happens I took a board here so we've got a little bit of conditioner on this side is that right and down on this side over here well let's see what happens when you put the stain on we're going to rub the stain on with a rag real quickly here just for our demonstration yeah and you can see that our top portion closest to us nice and even and look in the block look is a blotchiness we're getting down there yeah it is tremendous right we don't want that to happen to your table so we're gonna so once I put the conditioner on how long until I can put the stain wait 15 minutes but no more than two hours okay okay it's good then all right all right so we've got a table right here right conditioners on conditioners on there now it's time to put on our stain talk about techniques for that yeah nice thing about stain is you can put it on any way you want with a rag with a brush even with an aerosol can we're going to use gun stock because this is going to bring out the grain of the wood but it's not going to hide it you know we don't want to paint something as beautiful as this Sun stock being the color you've chosen exactly yeah lots of colors to choose from and you just we're going to brush this on and as you can tell neatness isn't so important at this point process let's take this one up okay well the most important part of staining is wiping up any stain that the wood doesn't absorb to get rid of all this at all this right yeah this is not a finish this is just the stain it needs to dry in the wood not on top of the wood okay and so once we've gotten this all off obviously the longer we keep it on the darker the quicker we take it off the lighter yes yeah once we've gotten it all off we want to talk about protecting this right stain adds color but doesn't add protection yeah but now we're gonna have to let this dry first of all so how long were you let it dry well typically you'd say eight hours with oil-based if the humidity is high or the temperature is low a little bit longer to be safe sometimes I say wait overnight I don't have overnight or eight hours so we've taken the liberty actually do move that one from a bruisin know the second table that we had you staying earlier remember this gonna be here any minute so now that this is dry what do you think about for finishing high right like you say stain adds color for protection polyurethane okay can't beat it now first thing is don't shake it don't you always want to stir figure 8 pattern you want to mix the ingredients but we don't want to create bubbles and shaking we'll do the bubble exactly okay second thing is pick a good brush you know people gravitate toward these you know these throw aways well they're like 25 cents is exact yeah and you get what you pay for you don't want this no because inside here we have air bubbles okay we don't want air bubbles and our finish and also its blunt it's not going to lay down a nice coat of finish like real bristles all right okay other thing is just dip about a half an inch into your polyurethane mm-hmm come over to the wood and now neatness does count we want to work in the direction of the grain of the wood yeah brushing it back and forth using those bristles to really work it in so I'm that you odor here leads me to believe that this is oil this is oil base we used an oil-based wood conditioner an oil-based stain an oil-based finish and if I wanted to use water base certainly could but once you start with a Wilms water finish with water start with oil finish with oil perfect speaking of finishing last thing is take the tips here bristles very gently pull it along the board that's the final stroke exactly this is going to even it out yep break any bubbles give you that nice smooth professional finish and how many coats how long a dry two coats usually eight hours to be safe again let it dry overnight then give it a light sandy with 220 grit sandpaper wipe off the dust second coat you're all done perfect wait'll mr.

Silva sees this oh here it is hey Tommy I brought the big guns again people gonna see again nice job on the finish is a very nice job isn't it thank you Bruce so until next time I'm Kevin O'Connor and I'm Tom Silva for ask this old house so Bruce my Stephan's right I can't deny I did watch him oh yeah were you good at that you.

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