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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    Larry · 05/05/2020
    Planning on staining a deck in central Texas. Deck will be in afternoon sun starting with steps about 2pm and full sun by 4-5pm. Had mold that I power washed off twice underneath on runners where deck boards crossed. Deck, railings, steps all power washed twice. Plan to stain underneath as well to prevent mold. Plan to use TWP 1500 oil stain. How does the new TWP water based stain compare to TWP 1500?
    Thanks for your help.
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      TWP Stains · 05/05/2020
      TWP 1500 is the best option for this deck.
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    Curt · 05/03/2020
    I was planning 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.


    While the barn is enclosed, it is unheated
    and has some air ventilation from slits between side boards. You had advised using TWP 1500. I tried to order it online
    and was told it was too toxic for indoor use and should only be used outside. Your thoughts?
    • We will reply to your comment shortly
      TWP Stains · 05/04/2020
      TWP is not toxic, but it does have a strong odor that can linger if used inside. You can use it in the barn but air it out until the odor dissipates. It could take a week.
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    Eileen · 05/03/2020
    We just ordered the TWP-100. Getting ready to stain here soon. Does this stain have a sealer built in?
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    Robert Werner · 05/02/2020
    I used TWP102 on a new dock 4 years ago after waiting 6 months for the wood to age. Should I stick with 100 series or go with 1500 and can I use a lighter color over the redwood?
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    Ed · 05/02/2020
    are both the 100 and 1500 series stain and sealer in one? I live in Missouri and will be using it on new wood on the ceiling over over my deck and covered patio and want to which series will last longer and the approximate length of time it will last.
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      TWP Stains · 05/02/2020
      Yes. They both last the same. About 2-3 years on a deck.
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    Robert Jaynes · 04/30/2020
    What stain should I use on 1 year old pressure treat wood deck has not been stained ? Live in Ky
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    Tom Gajda · 04/29/2020
    I live in Lincolnwood IL (Chicago Area) and will be Cleaning and Sealing my Cedar Deck that is 2 years old. Should I use the 100 or 1500 Series? Also, can you provide me with some Retailers in my Area?
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      TWP Stains · 04/29/2020
      Use the TWP 1500 for IL. We sell online from our website as a TWP dealer.
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    David · 04/27/2020
    I live on Eastern Long Island in NY. I have a cedar 20 year old cedar deck that I am re-finishing (strip, power wash, sand). Having researched quite a bit, would you recommend the TWP 100 or 1500 series and what are the differences them both?
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      TWP Stains · 04/27/2020
      You will need the TWP 1500 for NY. You are not allowed to use the TWP 100 based on your state's VOC laws.
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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.