If you are painting a pressure treated structure outdoors, the wood may have dirt and grime on it which you need to remove before painting. Do you think this will dry? Started writing in 2018 and sharing his love and passion for wood treatments and crafts. I have read everything from 4 weeks to 6 months. You can wait until next summer before moving on. Then seal the post with an acrylic stain sealer (get on Amazon: https://geni.us/YWICcl) before applying the intumescent paint. It depends on a primer. I am using PT 66 for curbing and drilling to drive rebar (2.5-3) to anchor the 66. I have had raised garden vegtable beds built, they used new presser treated cedar. Its been sitting in direct sun light for. Its a second story deck. Any advise is appreciated, I would recommend using stain by Rust-Oleum like this in the color you want or a stain by Minwax like this in the color you want. I would just keep checking on the wood to see if it has dried out yet. If you look closely at the surface of pressure treated lumber, you will notice small indentations spaced over the board. What is the best kind of paint and primer to use? About 3 weeks and the greenish color is fading away. Honestly, I dont know if its worth removing the cover now. Rust-Oleum is an exterior paint that have many colors. My name is William Stewart, I'm the proud founder and editor of WoodImprove.com. The wood can still breathe. If you are installing lumbers in an indoor location, you can use interior paint. You either stain or paint the wood. It usually fades to a grey. Been doing this for 30 yrs. Do I need to prime wood first What, if anything can I do? Follow the other tips in the article. Whatever color you use, plan on doing at least two finish coats over the primer, and wait a day between coats so the paint can dry thoroughly. This will be the best option for you and you will not have any problems. You may need to repair some defects and remove the coating (the coating may peel off) and then apply a new coating (as indicated in the article). Im just using a post that Im going to attach to an outside wall. Hi we are converting a village hall, the upper hall has vaulted ceiling but the roof needed strengthening to prevent spread so joists (10x3) have been installed every other rafter and will be exposed in the upper hall which will be bedrooms. Dont use a pressure washer because this can gouge the wood, reducing the effectiveness of the pressure treatment for preventing rot and insect damage. For decks, I recommend KILZ Premium as a primer and KILZ Porch and Patio as a paint. The best paint to use for pressure treated wood is a high-quality, exterior latex paint. Can tannilised C24 studwork be used to construct garden furniture projects if sealed with outdoor varnish or stain? One of them looks like the one from the photo. I would suggest using this primer/sealer by Kilz and this paint by Kilz for exterior floors. Hello, I am painting old pressure treated deck (20+yrs). First, it is good to wash the pressure again, to remove the remnants of the old coating and for an excellent result sand before application. https://woodimprove.com/best-exterior-paints-for-wood/. Hi Tee. I want to paint them with Timber Oil as I used on my covered deck and looks fantastic. In the same way surface preparation is key to getting a great paint job, sanding is the task that, when completed properly, transforms your woodworking project into something truly special. You can use the primer in those certain spots that are peeling if you want. I dont really think that using a primer is necessary here, so just paint right after sanding. Unless you have KDAT (kiln-dried after treatment) wood it shouldnt dry out. Latex paint/primer would be a good option. Covered with a waterproof tarpaulin is also an option for drying. The stickers provide air space between the planks and help with drying and keeping the wood flat and straight until youre ready to use it. Youll read of so many so-called teste you can do like dripping water on the wood and see if it soaks in or pools, but Im a little skeptical. Sanding is recommended but isnt a must. Painting can help with the live of the board. While you can handle new pressure treated boards without noticing the chemicals on your gloves, there is still moisture, pitch, and resin inside the wood which needs time to dry out before you paint it. Thanks. Later he plans on doing all 4 sides. Drying is more related to the behavior of the wood itself than to the coating. Its just a sample photo, sorry. For a primer, I recommend KILZ Premium. Would it be better to have non pressure treated wood on a shed or summer house. It is important for the drying of the wood not to be in direct sunlight, not to get wet directly and air to circulate through each board. You also need to use the right kind of paint to make this project successful. Im using pressure treated plywood to rebuild the floor and walls of my utility trailer. Its simple to do. To dry the oil you need a higher air temperature and good ventilation. If the new wood is already stained I would use a stain-blocking primer. I would like to stain them a dark grey/black coloring. If you have a deck, stairs, or other structure made with pressure treated lumber, you may not like the look of the brown or green wood surface created by pressure treatment. Thanks! I've started this blog to assist other wood enthusiasts with their projects, gather recommended products and answer direct questions. The most common are chromated copper arsenate, or CCA and alkaline copper quaternary, or ACQ. Place the stickers under the bottom piece of wood on the ground at each end of the board and spaced about every four feet under the length of the plank. Can just the railings and spindles be painted white with an exterior latex paint? The copper is what often gives pressure treated wood a slightly green tint, although the ACQ treatment makes the final product come out a brown color. Do I need to prime before painting? To fully prevent this from happening more, you would have to strip the paint and use a stop peeling primer and repaint the deck. Great discussion. Hi, I am fixing a wood fence new PTW post (4 in by 4 in by 10ft) and adding PTW horizontal slats (1 in x 2 in x 8ft or 10ft boards) very widely separeted (6 inches apart) both from home depot. Allowing the wood to completely dry before painting is one secret to a good paint job on this type of lumber. Always use gloves when handling this type of wood, wash your hands after handling it, even when you use gloves, and use a dust mask when you saw or drill holes in pressure treated lumber. As an Amazon Associate I earn from qualifying purchases. When the pressure treated wood is one year old, that is it is now slightly grey, do I need to sand it? I dont think it will have much of an impact on the life of your fence. Will it stay green if I do that? My suggestion would be to ensure the posts are well dry following treatment (weeks, not days), and since your focus is fire resistance, Id seal the splits. How long do I have to wait to use the timber Oil? Yet, for How to Get Scratches Out Of Hardwood Floors. Professionals usually use a primer. Thing is the joists are tannalised c24 grade planned, theyve been in for two months and are fairly dry already. I would suggest a Marine spar varnish for the best protection for the outside wood. The main factor is the quality of paint youre going to use. Do your painting during warm, dry weather and low humidity conditions. Hi Leah. I dont like the stain colors and definitely want a white railing and spindles. These two articles can be useful when choosing a paint: My home/deck (PTW) is 8+ years old. For your final paint job to completely cover the color of the pressure treatment, it is essential to use a high-quality primer before you paint on the finish coats. Looking to paint it white and gray to match the house I am trying to find the best paint for the job. However, building departments are phasing out CCA wood for residential use, so you are more likely to find it on existing structures. Would like to paint porch treated wood that has been stained. . To speed up the work of applying the oil, it is good to prepare enough space for work and a place for drying the oil. Chatham UK a budding woodworker. Pressure treating wood is a process done at the lumber mill to make the wood more resistant to rot and fungus attack. Question, do I need to seal the deck with a sealer before painting? The joist are new rough sawn, in reality quite smooth, except the edges. Hey Al, your comment got trimmed for some reason and I cant see it in full can you please re-post it so I can deliver a good answer for it? So we did a cost yesterday and then a friend who apparently know better about these things told me we should have waited until next summer.we are one coat in. Or will the primer do the job without the need of sanding? I dont think there are some complicated steps needed here. Then Id use a water-based stain. Some spots are peeling. link to How to Get Scratches Out Of Hardwood Floors, Best Wood Primers Reviews and Buyers Guide, Best Wood Waxes Reviews and Buyers Guide, Best Interior Wood Stains Reviews and Buyers Guide, wood floating panel oil to let panel move as forced by humity, etc. Thanks, He used a satin polyurethane so paint can stick to it later on. Depending on what type of treated wood it is, it wont dry out. You said its treated so it wont (if treated properly). I think it should work. We are replacing a few boards on our deck, then I want to paint it. Be sure to stack the wood undercover with thin strips between it to allow airflow around each piece, and check each week. What advice do you have for preparing and painting these, I can share pics if needed. https://woodimprove.com/best-wood-primers/ If youre not building right away, prevent the boards from warping by stacking them using stickers thin pieces of wood slightly wider than the wood you are stacking. Didnt have a suitable one for this article. I would recommend this primer or this sealer. Although Id like to replace it with composite decking, I cant afford that now. Besides making sure your pressure treated lumber is dried out from the treatment process, its also essential not to paint any wood if its wet from rain or snow. If you have a deck, stairs, or other structure made with pressure treated lumber, you may not like the look of the brown or green wood surface created by pressure treatment. I purchased some treated lumber from my local store for the front steps to my home. With proper drying, cracking, and distortion of the wood is minimal. None of those designations related to the pressure treatment. I want to paint the (treated) wood support beams for my sons mailbox. Theres a simple test you can use. We did your water test and the water droplets just sit on the wood zero absorbtion is happening at the mo. As long as the tanalised C24 or the CLS wood is sealed or has an outside varnish on it either one should work for any of those projects. I have treated boards from fence that was built 3-4 years ago.They have been stored in attic of garage. It shouldnt matter, but some oil-based paints do seem to have trouble sticking to treated woods. Had to remove trees and vegetation in unsuccessful attempt to retain fire insurance. After you buy new pressure treated lumber, build with it right away, or keep it stacked flat in a dry place and wait at least 60 days to four months before painting it. Apply a coat of primer to all surfaces of the wood you plan to paint, and let it dry for at least one day before moving on to the next step. Could you please advise where I could get this paint? Any advice on primer and paint ? Patience is a crucial ingredient in this project. Polyurethane is a topcoat, not an undercoat for painting/whatever. How can you tell if the chemicals are fully dried out before painting pressure treated wood? Sand them properly to remove any treatments, dirt. Hi, The wood is dry. Thank you, Hoping to start this project soon. Hi, thank you for this article. Thanks. Wet the area, scrub with the brush and soapy water, and use the spray of water to clean it off. I also have a batch of tannilised pallet boards, silvery green when planed. I just built my deck with pressure treated wood this summer. Unless you use kiln-dried pressure treated wood, one problem with putting a coat of paint on this type of wood is that pressure treated lumber is not thoroughly dry for quite a long time after the chemical pressure treatment. that the 10. You dont need to prime the wood first but for the best results and long term durability, I would recommend priming before painting. Alex. If not, how long do I have to wait? Expect to wait three to four months for new pressure treated wood to completely cure before painting it. To repaint, would removing all loose paint with a wire brush then following your guidelines (priming, painting) be sufficient? Paint stirring sticks work just fine for this, but you can use any type of stick as long as they are all the same thickness. You can use a paint sprayer or a paintbrush to apply both the primer and finish coats, but paint rollers probably wont get paint into all of the crevices on the surface of most pressure treated wood. When lumber is processed, it is submerged in a vat of chemicals and put under high pressure to get the chemicals to penetrate deeply into the wood grain. You dont have to seal it before painting but I would recommend it for the best protection and look over time. I realized without knowing that I may have to wait if its too wet before finding this article and others regardings PTW and paint. Really your question has so many variables such as where you live, there is really only one perfect answer, and that is to buy a cheap moisture meter for less than $20 and wait until the wood tests to somewhere between 10 and 15% for exterior timber, or 6 to 8% for interior. Actually, there are primers requiring no sanding, for example Zinsser BullsEye. I would like the deck to be a textured paint but not fill in the gaps of 1/4 between the decking boards. I suppose the joists are in bad condition or something like that? Kiln-drying involves stacking lumber in a container and applying heat to help it dry faster. You can choose any color you like, but lighter colors may take more coats to hide the green or brown color underneath completely unless you use a primer. You can definitely use water-based paint over oil-based primer but primer needs to be completely dry before painting. Also, some slat boards (1x2x10) were labeled #2 PT-board and looked significantly different than the 1x2x8 I got later (My local store did not have the 10) the 8 foot had more grain, more green and more knots. The joists were painted in the past but the paint is cracking and peeling and quite unsightly when looking up at the bottom of the deck from the ground floor. For larger projects, I recommend using a primer. However, if you follow these steps carefully, your finished job will likely come out looking good and lasting a long time. Or do I have to lay boards out in sun for months first to get rid of green? I do think it will dry it just might take a little longer. It is good to dry and process all the wood together, so their humidity will be the same. There are several different chemicals used for treating lumber. For smaller projects, you can simply use another coat of paint, so you wont have to buy two different products. This has necessitated a fence to mitigate road noise, etc. Its so subjective there is no easy answer Im afraid. If I paint all sides of a 46 treated post and leave one side not painted will it dry out eventually? I painted my deck made from treated wood without using primer. I would use something like this or this. Also, sanding will provide better adhesion. If it rains on the unpainted plywood, how much longer must I keep it garaged to dry out before painting?4. Or is it safer bet to use CLS untreated studwork and outdoor stain or varnish. You can buy a two-pin moisture meter like this one quite cheaply on Amazon: https://geni.us/sZBX2xR. Some are very green and look more wet that others. WoodImprove.com is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for website owners to earn fees by linking to Amazon.com and affiliated sites, as well as to other websites that may be affiliated with Amazon Service LLC Associates Program. Hardwood floors are beautiful to look at and walk on, but they are prone to scratching. It seems to work so far. Hello Dale, What should we do? Will the wood be ok outside? If your lumber is outside, wait at least a month after the last rain before painting. These help the chemicals penetrate better into the surface of the wood, and their presence is a sure way of determining a piece of wood has been pressure treated, no matter what the color is. You can also try sealing the deck or using a varnish to give it a coat over the paint to protect it as well. 2) Should I fill the splits in the peeler cores prior to paint, or just try to work the paint into them? In any case, it is good to let the wood dry. The chemicals used for pressure treating lumber are toxic if you ingest or inhale them. The proud owner and lead writer of WoodImprove.com. It does take a bit more work and patience to paint pressure treated wood than painting untreated lumber. Also all the ends. It would be tough to sand them all down! The wood might dry out a little bit on the surface if left bare but it wont dry out completely. Had a new deck built out of pressure treated pine this past week 2/16/20. I think it will work. You can buy kiln-dried pressure treated lumber, also called Kiln-Dried After Treatment, or KDAT, if you dont want to wait as long for the wood to dry before you paint it. ???? Not sure if the polyurethane will peel, but it seems to help with splitting & warping as rain runs off. Was it stained a long time ago? Welcome! Since the deck is small, I can cover the deck planks with an outdoor carpet without worrying about the brown/stain color. It is always good to use a primer, better price, easier work (compacts well, and is easy to sand). Im not sure what the symbol on the extra boards means. It really depends on the darkness of the stain you intend to use, but yes, Id lay them in the sun for a week or so to see if you can reduce the green. Is this referring to quality only? Then use a good quality paint system that will sink deep into the wood so as too fully protect it for longer than annually. Thanks. It is in the ground 1/2 to 2/3 thickness. in rainy south florida? Then set down your first piece of wood on the bottom stickers. Just pour a small amount of water onto the wood and watch what happens. After that, the wood is set on racks until it is dry to the touch and ready for sale. The wood was very wet and heavy. If the water sinks into the wood grain, its dry enough to get out your paint brushes. On average wood takes 4 weeks to dry out if the temperature is 60 degrees or above. The questions.1) does tumescent paint seem appropriate for the PTW on this project? Yes, you can paint soon after the new boards are installed. I think the question was more about whether it would dry out, not whether it would rot or deteriorate more quicklyI have the same question, started priming it before I saw this article, now Im wondering if I leave one side unpainted, but leave it out before using it, will it eventually dry out on its own? The SYP means its Southern Yellow Pine. Or does the paint act as a sealer to protection from rain and UV rays? I always prime new pressure treated wood with an oil based primer. The background .I live adjacent to one of the large NorCal fires from this summer. But of course, the painted wood will be more protected. The project..Im using 8 x 8 PTW peeler cores every 8 feet with ground contact PTW hemlock horizontals and semi clear polycarbonate corrugated panels (polycarb doesnt support burning). I guess it means it will be cut from a different part of the tree (for example, at the end of the tree, if there are more knots). If you dont want to spend $18 then, yes, it may take a month or so to stabilize and youll need to wait until the wood is touch dry and feels lighter. Because it is not thoroughly dry, new pressure treated lumber can quickly warp and bend if you dont handle it correctly. It has KDHT and SYP stamped on it. My boyfriend had to put up a handrail in his backyard when he added a driveway there. If the new boards arent stained, I would use a high-quality latex primer or an oil-based primer. thanks! What should I use. If pressure treated wood can be problematic for painting. I want to make a window box with boards and stain it but wood still has green areas from being treatedeven after some sanding. Why do you want to paint the stained wood? You will need a hose with a jet nozzle, a stiff brush, and a bucket of water with a mild detergent. Only time will tell what will happen. Is it because of the #2? Can I prime and paint soon after new boards are installed? Other paints suitable for decks dont have such colors. Hi Doc, Im not sure the brand of intumescent paint youll be using, but the one I have experience of suggests that its compatible with an acrylic stain sealer, so yes, you should be fine using intumescent paint on the peeler cores (you might want to check the literature on the one you intend to use). We want to paint them, we are also thinking of planing them a little to remove the worst of the treatment chemicals before painting. Once you have this knowledge and a few simple tools, your pressure treated painting job will come out looking great and lasting as long as possible. I have a house with an exterior deck built with 210 or 12 pressure treated joists. You may be asking, can you paint pressure treated wood?The short answer is, yes, but its a little more complicated than painting wood that isnt pressure treated. which one would be the better option for a fence (not kiln dried). Using a primer will also ensure the finish coats of paint adhere to the wood surface without peeling. ideally, you will simply renew the existing coating. Be sure the label on the primer says you can use it outside. If you have painted the wet wood, this is not the best option, but it has already been done. and it appears to be bare PTW. Anyway you can use KILZ Porch as a paint. He made the rail to lay flat rather than up on its edge. There is no stain left on the deck/railing/stairs, etc. We just had a deck build with PTW and were told we could paint it in a few days. I need to know how long before I can paint it. Just remember that copper azole-treated poles need to be seriously dry before painting, and you often dont get good adhesion with oil-based paints. Any other tip as to how to use the timber oil on it or how to speed the process of painting..I want to add a bunch of climbing plants and I may have to wait for that. Would they be safe for tables, chairs, benches, planters etc if sealed with aforementioned outdoor varnish or stain. In that time it was stained twice, but has been pressure washed only, for the last 4 years. Some primers need thorough sanding, some primers need no sanding at all. there is a possibility that your treated wood will be dried in an oven or dried before it is placed. Hi there, There are a couple of things you need to know about how to prepare the wood before you get out the paint and paint brush. I want to have it done before he comes back from deployment. Also, you need to wash off the chemicals on the surface of the wood before you paint. But to cover the stain you should apply a primer before painting. Would painting green treated timbers for a window well help to improve the live of the boards, most of all the dirt side.? Just make sure you follow all the steps listed on the website for the best results. It all depends on the climate you are in to say how long the wood will take to dry. Its lots of meters of fence so Id love to avoid the sanding part. You can paint it with water based in a couple days. After cleaning, youll need to wait for the wood to dry completely before moving on to the next step. I need to use the trailer frequently and cannot wait months before painting it. Eddy. KILZ Porch Paint doesnt have white color, buy there are silver and gray. Also, I love the lively paint on the example photos. Rain was making fine cracks, so he polyurethaned tops of the posts & the rail tops. To restore posts you might have used fillers, hardeners, then seal the wood and finally paint it. Hello Bob, The KD stands for kiln dried, the HT for heat treated. But Rust-Oleum isnt the best choice for decks. can I just stain over green areas? But in my opinion, sanding with sandpaper or sander is always preferable, this provides better adhesion. Intumescent paint is what I was trying to ask about (not tumescent). While I know youre not painting it, Id be cautious and use a water-based stain to be sure. I plan to install pavers between the curbing. 44 posts with 24 pieces to make the rail. If the water beads up on the surface, the wood is not dried out enough. My intention is to paint these pieces when/if dry with a concrete or porch paint. Kiln-dried lumber does not warp as easily as wet lumber because all of the moisture evaporates during the drying process. Then put stickers on top of the bottom board, using similar spacing as before, and stack the next piece of lumber on top. It is good to place between the floor and the first board concrete blocks or other material that does not seep water from the floor. This will make your job easier. Hello Agustin. Barry. Just paint it when it looks like refreshing be better?
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