Which TWP Stain Should I Use?

TWP stands for Total Wood Preservative. It has been around for over 20 years and has been a leader in the wood staining industry. TWP Exterior Wood Stain is an EPA registered wood preservative. Unlike other stains that cover up wood and form a protective film that is venerable to peeling and flaking, TWP stains are a penetrating oil formula that offers excellent protection. Knowing which TWP formula is best for your exterior wood project is the key to having excellent results.

TWP 100 Series – The 100 Series has been a leading and respected formula for over 25 years. It penetrates and enhances natural wood beauty and is available is 6 different colors. It is used for all types of exterior wood decking, siding, fencing, and hardwoods. It is not prone to mold or mildew. The 100 Series is not compliant in all states. Please be sure to check if it is compliant in your area. 

TWP 200 Series – Available in 8 different colors, the 200 Series formula is best used on wood siding, shakes, and shingles. It uses a non-drying paraffin oil formula that enhances the wood cell’s structural stability making it an excellent choice for older wood that has lost its natural oils. It sheds and repels water and prolongs UV fading. The TWP 200 Series is compliant in all 50 states.

TWP 500 Series – The TWP 500 Series formula has been discontinued and replaced with a new and improved formula called TWP 1500.

TWP 1500 Series – The new 1500 series replaces the old 500 series. This newly formulated preservative penetrates better, dries faster, and outperforms it predecessor. TWP 1500 is a low VOC preservative with unique absorbing pigments that prevent wood graying, fading and premature discoloring. Selected mildewcides prevent the growth of mold and mildew. Available in 9 different colors, TWP 1500 Series Stain is best used on all types of wood fencing, decking, siding, log homes and roofing. It is compliant in all 50 states due to its low 250 VOC formula.

Choose the TWP Series Stain that best fits your needs and give your wood surfaces the protection and lasting beauty they deserve.

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    Lynsey · 04/23/2020
    We are building a new house and have large outdoor cypress posts and beams and cypress porch ceiling? Can I use TWP 1500 to stain and seal all of these? Can it be applied with a sprayer?
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    Jackie · 04/20/2020
    I am staining a fence. I have used 100 series in the past. But wondering which is better for a fence, 100 or 1500 series?
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    Larry Reed · 04/20/2020
    We’re adding a smooth redwood pergola to our deck. What product do you recommend
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    Kerrie Hanlon-Delas · 04/16/2020
    We are about to re-do our Deck and we haven’t cleaned it yet. I’m 90% certain we used TWP100 previously.(a contractor handled it) It weathered so incredibly well that its been 8-9 years since, (snow & 100+ temps)yet its still in pretty good condition. My question is: where the railing posts are in good condition, can they just be recoated after cleaning and scrubbing?100 over 100? I expect needing to sand the deck and top railing as the product has ‘worn through’ on walkway and been chipped by hail on the rail. I was hoping to avoid sanding the whole project.
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    Jim B. · 04/15/2020
    Can I apply redwood color TWP 1500 over Navajo red latex painted cedar or pine?
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    Linda guy · 04/15/2020
    Staining some 40 yr old redwood some 8 year old..use twp 100 or 1500..live in reno, nv..want to see reall redwood color and grains..should i sand?
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      TWP Stains · 04/15/2020
      Depends on the current condition and if there is already a stain on the wood or not? Pictures would help.
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    Curt · 04/10/2020
    I am going to use your product on a 3300 sq ft barn floor recently installed
    with treated pine. Sun exposure will be minimal except through
    barn's side slits between boards. There is some moisture
    and snow that comes in the same way. There are birds & bats
    that soil the floor on an ongoing basis. Need a TWP product that
    dries fast, cleans up well, and lasts a long time. Which is better
    for this project, TWP 100 or 1500?
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    Kristen · 04/05/2020
    Can I use Waterlox over TWP stain?
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      TWP Stains · 04/05/2020
      No. You cannot apply anything over the TWP.
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        Kristen · 04/05/2020
        Not even polyurethane?
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          TWP Stains · 04/05/2020
          Using polyurethane on exterior wood is a very bad idea. It will peel and blister.
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    David · 04/04/2020
    Which TWP product is best for sealing exterior antique pine posts? They will be on a porch exposed to the South Louisiana weather.
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    David · 04/04/2020
    Which TWP product is best for exterior mahogany doors?
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    Chuck · 03/29/2020
    I have a deck at the beach in a southern NJ town that was done about 4 years ago in Behr Natural Clear Transparent Waterproofing Exterior Wood Finish. It's not held up well and I'm looking to strip it and start over. What would the best TWP stain to use in a southern NJ beach application?
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      TWP Stains · 04/04/2020
      TWP 1500. Make sure to fully remove the Behr first.
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    Doug Rogers · 02/03/2020
    Can you review the differences in 100, 200 and 1500? Not just the recommended applications. I am having difficulty discerning which I should use based on the descriptions and FAQs
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    David Korhonen · 01/13/2020
    Can TWP1500 be used on wood roof shingles?
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    Nancy Peske · 08/22/2019
    I live in Michigan. I have a 15 year old pine pressure wood deck that has never been stained. I am going to clean it with Restore-a-deck cleaner and use the brightener. Should I use the TWP 100 or 1500? Also, I just had a pine pressure wood railing put on. I plan to let it weather for year. Should I use 100 or 1500 on that? Thank you.
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    Karen · 08/19/2019
    Hi! I'm in the Raleigh, NC area, and want to preserve a brand new pressure treated pine fence. I'd like to keep it as natural looking as possible. Which product should I use? Thanks!:)
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    Lark · 07/17/2019
    I just had a cedar fence put up in the Seattle, WA area. It was finished in May. Should I wait four months to (September) or can I stain sooner? The constant rains start early. Also, should I use the 100 or 1500 series? Thank you!
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      TWP Stains · 07/18/2019
      If it is smooth wood, you have to wait and prep. If rough sawn cut wood, you can do it now.
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    Mike · 07/07/2019
    Where can I find local places that sell TWP products? I live in the St. Louis, Missouri area.
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      TWP Stains · 07/08/2019
      We are an online dealer for the TWP and ship directly to your home. Takes a few days.
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    Jeff · 07/05/2019
    I have 300 sq ft of pressure treated deck in central Vermont that gets intense sun in the summer and lots of snow in the winter. The deck was installed 11 months ago and ready for its first treatment. I am looking at the TWP products but am not sure whether to use the 100 series or 1500 series. What is the difference?
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      TWP Stains · 07/06/2019
      Use the TWP 1500 Series.
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        TWP Stains · 07/06/2019
        Difference is VOC compliance for certain states.
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          Jeff · 07/08/2019
          I understand that Vermont does not require the more restrictive VOC levels. You still recommend the 1500 series?
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    Penny · 07/04/2019
    How long will the TWP 1500 series last on a pine deck in the woods with some afternoon sun?
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    Richard Brackin · 06/28/2019
    I used TWP dark oak stain on a vertical cypress beam with beautiful results. The beam fell into some bushes before it could be secured to the house resulting in greenish bark “juice” in a few spots. What would you advise?