you must get rid of the glaze, either by natural aging, sanding, or by treating with oxalic acid. oxalic acid is the main ingredient of most deck brighteners. if you elect to sand, do not use too fine a grit of sandpaper, as it too can cause mill glaze, especially when used on a power sander. behr's 2 in 1 deck brightener contains oxalic acid.
if you decide to sand your deck to prepare for the stain, the first step is to sink all screws or nails below the deck surface. this is done to protect the tops of the fasteners as well as the sandpaper. if the deck was screwed down, you need to back out the screws and then drive them a little deeper.
how to: sand wood before staining. a lot of folks make the mistake of sanding to either too fine of a grit or not fine enough before applying stain. too fine and the wood wont be able to accept the stain. too rough and the wood will be very dark almost to the point of being black.
learn why it's not necessary to sand the deck. just give it a good cleaning and then use a solid-color stain. if you prep the deck and apply the stain properly, it should last five to seven years.
answers. you can spray bare wood with a mist of water which will 'raise the grain' and expose any loose fibers, then sand it one final time but that's before staining. you can use an oil-based stain and a water-based finish but the trick there is to allow the stain to dry for at least a full day and fume out completely,
today were going to thoroughly examine the deck surface before applying our coat of stain. were going to sand away some rough spots, use the router to ease some edges and then apply our stain to finish the job. so lets get started. most professional deck refinishers will tell you theyve never met a deck that didnt need sanding before the finish coat was applied. and our deck is no different.
as with any good remake, it begins with a good wash and ends with the right product. then theyll use a palm sander for the areas the belt sander couldnt reach; followed by a sanding sponge wrapped in sand paper for the areas the palm sander couldnt reach. then theyll repeat that process using a lighter grit 60/80 . this leaves a nice, smooth surface that will take the stain consistently.
rent a pressure washer from the hardware store. use a pump sprayer to spray the stripper, and use a stiff nylon brush on a pole to loosen the old stain. pressure wash until the deck is clean. it should only take a few hours. allow it to dry for one week before staining. do not sand a deck use a semi-solid oil-based stain like cabot's.
i'll get this out of the way quick, if your deck is stained with a semi-transparent stain that has faded you should continue on with the same type of stain when you do your maintenance coat. if you are going to switch brands you need to completely remove the previous coating before starting your staining job.
closed pores make it more difficult for the stain to be absorbed and could lead to premature stain failure. use a hand sander or belt sander. to remove a solid deck stain or paint, you may need a floor drum sander. start with 60 grit paper and finish with 80 grit. make sure to sand all wood evenly.
a deck stripper will break up the old stain so that when you pressure wash the deck, youre providing a good and clean surface for the new stain to bond. next, you will need to apply a deck brightener. the job of a brightener is to help restore the wood ph levels and open up the grain.
the importance of cleaning. if you're staining an older deck, you also need to remove the gray surface layer of oxidation if you want the deck to appear anything like it did when it was new. a thorough cleaning of the deck also removes grime, dirt, tannin and rust stains and other blemishes that will show through the finish.
on an older deck, dirt, graying from the sun, mildew, and old stains all need to be removed prior to staining. sodium percarbonate wood cleaners, also known as oxygen bleach wood cleaners, are a great choice for this step. they are highly effective at cleaning the wood, yet won't harm plant life and vegetation.
sand with the grain. always sand in the direction of the grain--never perpendicular to it or at an angle. this also applies when working on edges and hard-to-reach corners. scratches made by sanding against the grain will look unattractive on the finished piece and will be particularly noticeable after staining.
cleaning your new deck. after the deck has dried you are now ready to sand the deck. use a pole sander so you can sand the deck standing up. use 50 to 80 grit sandpaper. sand in the direction of the wood grain. you do not need to sand railings, as they are a vertical surface and do not wear as fast.
should you pressure wash a deck before staining? the short answer to this question is yes. but that is not all you should do if you want your deck stain to last. too often we receive estimate requests from a customer whose decks were stained less than 2 years ago.
how to: sand wood before staining. it all starts with sanding. you need a smooth surface with no blemishes because stain will highlight scratches and dings in the wood. always sand down to clean wood if you have enough meat left of the wood before applying any stain.
sanding your deck before staining strips the outer layer of sealer and stain, and removes damaged wood and smooths away splinters. sanding by hand with a pole sander is the safest method for both
find out how to restain a cedar deck. learn why it's not necessary to sand the deck. just give it a good cleaning and then use a solid-color stain. if you prep the deck and apply the stain properly, it should last five to seven years.
so, before you dip a brush into a can of stain or paint, you should check the moisture level in the wood--you should also do this if you had the deck power washed in preparation to refinishing. you can check the moisture level with a moisture meter, commonly for sale or for rent at your local hardware store.
xsleeper member. i would power wash the deck then sand it lightly to smooth out any fuzz. sanding alone will take forever and a day, and you won't be able to sand around balusters and such, so you might as well power wash it all to get all the nooks and crannies and no, sanding won't remove everything.
why sanding your deck can reduce stain penetration. one of the most frustrating problems that can crop up when you decide to stain or restain your deck is that the stain doesnt absorb into the wood correctly.