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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  • We will reply to your comment shortly
    Scott Elsasser · 11/07/2015
    I'm doing several new hardwood exterior doors. I've used TWP 100 series on a similar door 2 years ago, and am happy with how it has held up. Which will be best in this application, Series 100 or 1500? Thanks!
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    TWP Stains · 11/06/2015
    You can use the TWP 1500 Series. Best to use the same stain color for all sides. Use an exterior stain pad for application.
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    Jim Ahern · 11/05/2015
    I will side my newly constructed home with 1x8 shiplap Spruce boards (rough side out) mounted vertically. It is Kiln Dryed and still under shipping wrap. I want to treat both sides with and oil preservative and the rough (outer side) with a semi-transparent stain before I put the siding up.

    What TWP stain would you recommend and how should it be applied.
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    TWP Stains · 10/29/2015
    JC Butler:
    We need to treat lots of exterior cedar wood structures in southern AZ. It was treated with an oil about 10 years ago. We need to keep the wood from drying out in the very intense sun. Will TWP work in this situation? What product should we use?

    Use either the 100 or 1500 Series. Make sure to prep first with the Gemini Restore Kit. This will work well for you.
  • We will reply to your comment shortly
    JC Butler · 10/29/2015
    We need to treat lots of exterior cedar wood structures in southern AZ. It was treated with an oil about 10 years ago. We need to keep the wood from drying out in the very intense sun. Will TWP work in this situation? What product should we use?
  • We will reply to your comment shortly
    TWP Stains · 10/19/2015
    bob graham:
    WE ONLY HAD ENOUGH STAIN TO DO THE RAILINGS TWICE (WHEN WET) AND THE DECK FLOOR ONCE. IT IS NOW DRY. WHAT WILL HAPPEN IF WE NOW APPLY A SECOND COAT TO THE DRY DECK FLOOR? WILL WE HAVE TROUBLE WITH A LONG DRYING TIME?

    Yes you may have issues with longer drying time and possibly "shiny" spots.
  • We will reply to your comment shortly
    bob graham · 10/19/2015
    WE ONLY HAD ENOUGH STAIN TO DO THE RAILINGS TWICE (WHEN WET) AND THE DECK FLOOR ONCE. IT IS NOW DRY. WHAT WILL HAPPEN IF WE NOW APPLY A SECOND COAT TO THE DRY DECK FLOOR? WILL WE HAVE TROUBLE WITH A LONG DRYING TIME?
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    TWP Stains · 10/07/2015
    Verdade:
    I guess I meant to ask below about which RAD the kit, the stripper, or the stripper and the brightened? Sorry for any confusion.

    Thank you!

    If you still have old stain then yes it shoudl come off. How depends on the stain type it was. If a transparent or semi-transparent then you will need both the stripper and wood brightener. If a solid (opaque) stain, then you will need to sand off the old stain spots, then clean and brighten after.
  • We will reply to your comment shortly
    Verdade · 10/07/2015
    I guess I meant to ask below about which RAD the kit, the stripper, or the stripper and the brightened? Sorry for any confusion.

    Thank you!
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    Verdade · 10/07/2015
    Thanks for the stain recommendation. After looking at my deck again in different light it appears that I do have some old stain patches here and there. I originally cleaned the entire deck with a pressure washer only (last weekend). Is it ok to go over the deck now with the RAD kit?

    I'm hoping to avoid stain blotches when I apply the TWP100.

    Thanks again.

    TheSealerStore"][quote name="Verdade:
    We purchased a home that was built in 2001. We just finished cleaning the deck (probably never cleaned by previous owners).

    I believe it is pressure treated pine, however I'm not sure what stain was used before. After cleaning and drying it looks like new wood - clean with no stain pigment left. We are in KY and the deck gets sun from 11:30-5:30ish. Which TWP do you recommend? Thanks in advance!

    -Ken[/quote]
    Use the 100 Series for this.
  • We will reply to your comment shortly
    TWP Stains · 10/06/2015
    Verdade:
    We purchased a home that was built in 2001. We just finished cleaning the deck (probably never cleaned by previous owners).

    I believe it is pressure treated pine, however I'm not sure what stain was used before. After cleaning and drying it looks like new wood - clean with no stain pigment left. We are in KY and the deck gets sun from 11:30-5:30ish. Which TWP do you recommend? Thanks in advance!

    -Ken

    Use the 100 Series for this.
  • We will reply to your comment shortly
    Verdade · 10/06/2015
    We purchased a home that was built in 2001. We just finished cleaning the deck (probably never cleaned by previous owners).

    I believe it is pressure treated pine, however I'm not sure what stain was used before. After cleaning and drying it looks like new wood - clean with no stain pigment left. We are in KY and the deck gets sun from 11:30-5:30ish. Which TWP do you recommend? Thanks in advance!

    -Ken
  • We will reply to your comment shortly
    TWP Stains · 09/22/2015
    reba:
    My 25 year old pressure treated pine deck is in need of attention. The solid color stain I applied a few years back is starting to peel. I was told I need to go with Armstrong Clark semi solid stain. I was told I would need to completely sand off the previous stain. I have about 1000 square feet of flooring, maybe 60 feet of rail and 20 steps, along with some lattice. I tried to sand and because of the condition of the wood with grooves in the wood, I cannot sand it.
    What would be the second best way of taking care of my deck? I live in north Alabama and the deck gets morning and early afternoon intense sun. Thank you so much for any help you can give me.

    You cannot use TWP unless you remove all of the solid stain. Stain stripper will not remove a solid stain so you will have to sand it all off or replace the wood with new wood if you want to use TWP.
  • We will reply to your comment shortly
    reba · 09/22/2015
    My 25 year old pressure treated pine deck is in need of attention. The solid color stain I applied a few years back is starting to peel. I was told I need to go with Armstrong Clark semi solid stain. I was told I would need to completely sand off the previous stain. I have about 1000 square feet of flooring, maybe 60 feet of rail and 20 steps, along with some lattice. I tried to sand and because of the condition of the wood with grooves in the wood, I cannot sand it.
    What would be the second best way of taking care of my deck? I live in north Alabama and the deck gets morning and early afternoon intense sun. Thank you so much for any help you can give me.
  • We will reply to your comment shortly
    TWP Stains · 09/21/2015
    Bruce Lindsey:
    I live in a very humid environment, heavily treed, on a lake in East Texas and need to stain my house and deck, which are all wood. The house has rough cut pine siding. I have been planning to use an oil based stain to help preserve the wood on the house, but locals have told me that oil base is not appropriate for this environment because the oil actually feeds mold and mildew. I do not know what type of stain was previously used. What do you guys recommend for this type environment? Thanks for the help.

    You would want the TWP 100 Series. It is an EPA registered wood preservative that prevents wood rot, decay, and mold. You would have to prep by removing any old coatings on the house and deck first.
  • We will reply to your comment shortly
    Bruce Lindsey · 09/21/2015
    I live in a very humid environment, heavily treed, on a lake in East Texas and need to stain my house and deck, which are all wood. The house has rough cut pine siding. I have been planning to use an oil based stain to help preserve the wood on the house, but locals have told me that oil base is not appropriate for this environment because the oil actually feeds mold and mildew. I do not know what type of stain was previously used. What do you guys recommend for this type environment? Thanks for the help.
  • We will reply to your comment shortly
    TWP Stains · 09/20/2015
    Melvin Rosen:
    I need to restain my deck which has been stained twice in the past with TWP 200 California Cedar (205). It was last stained in 2006. Should I again use TWP 200 California Cedar or should I use the new TWP 1500 which you claim is the best for decks. If I switch to the 1500 product can I apply it directly over the 200 and which color would best replace the California Cedar?

    I would just stay with the 200 Series if you are happy with the performance:
    http://www.twpstain.com/twp-200-series-5-gallon
  • We will reply to your comment shortly
    Melvin Rosen · 09/18/2015
    I need to restain my deck which has been stained twice in the past with TWP 200 California Cedar (205). It was last stained in 2006. Should I again use TWP 200 California Cedar or should I use the new TWP 1500 which you claim is the best for decks. If I switch to the 1500 product can I apply it directly over the 200 and which color would best replace the California Cedar?
  • We will reply to your comment shortly
    TWP Stains · 09/11/2015
    Robert Schulman:
    I'm unclear which TWP product to use: 100 or 1500 series for my old, weathered deck which is mostly shaded (overhanging roof extends to edge of deck). I have used water sealants in the past. Also, can I apply the TWP stain with a roller? My home is in Cincinnati Ohio. Thanks.

    For your area you will need the 1500 Series. Best to apply with a brush or stain pad.
  • We will reply to your comment shortly
    Robert Schulman · 09/11/2015
    I'm unclear which TWP product to use: 100 or 1500 series for my old, weathered deck which is mostly shaded (overhanging roof extends to edge of deck). I have used water sealants in the past. Also, can I apply the TWP stain with a roller? My home is in Cincinnati Ohio. Thanks.