TWP 1500 Series 5 Gallon and Gemini Cleaner/Brightener Kit

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TWP 1500 Series Stain and Gemini Restore A Deck Kit Combo Pack

This Combo Kit comes with both 5 Gallons of TWP 1500 Series and the Gemini Deck Cleaner and Brightener Kit for prepping your wood.

TWP 1500 Series Colors1 Gemini Restore A Deck Kit

Restore-A-Deck Cleaner and Brightener system is a powerful "eco-friendly" two-part restoration system.

Step 1 Wood and Deck Cleaner that deeply cleans your wood to remove dirt, grime, mold, algae, and general graying. The cleaner will help prep neglected wood and or prep for re-coating with a wood or deck stain.

Step 2 Wood Brightener is used after the wood cleaner to "brighten" the wood while neutralizing the cleaner to a natural pH balance. This step will improve the overall appearance of your wood while helping the wood deck stain longevity.

The kit covers 750-1000 sq feet when mixed.

1 TWP 1500 Series 5 Gallon Pail

TWP 1500 is a Semi-transparent Oil-Based wood stain and preservative that is allowed in all 50 states.

The TWP® 1500 formula is designed to penetrate better, dry faster, and outperform the previous TWP® 500 series formula.

TWP® 1500 Series is an EPA registered wood preservative which prevents structural damage and wood decay on exterior above ground wood surfaces such as fencing, decking, wood siding, log homes, and roofing. TWP® 1500 Series resists water absorption that causes warping, cracking, and splitting as well as preventing freeze damage in colder climates.

TWP® 1500 Series is a low VOC preservative with special U.V. absorbing pigments that prevent unsightly wood graying, darkening, and fading. The selected mildewcides inhibit the growth of mold and mildew which assist in preventing premature discoloration.

TWP® 1500 Series will keep your wood beautiful, fresh, and looking new longer. The ease of application and maintenance will allow you to enjoy your investment for years to come.

TWP 1500 Series Stain QuestionsKey Features

  • Preserves natural wood color
  • EPA registered wood preservative
  • Professional choice for all exterior wood surfaces
  • Semi-transparent stain preserves natural color
  • Sheds water longer
  • Prevents mold and mildew
  • Helps to prevent wood rot
  • Easy to apply and can be cleaned and recoated as needed
  • Helps in the prevention of warping, cracking, and splitting
  • Low 250 VOC formula, compliant in 50 states

*We do not guarantee stain colors as they will vary widely depending on the wood type, age of wood, prepping of wood, and application. Small samples are available.


Have Questions on Prep and Application?

Visit our Help Site for all the answers!


Gallon Sizes: 1's & 5's
Stain Type: Semi-Transparent Oil-Based
Coverage Per Gallon: 150-200 square feet
Coats  Required: 1-2 Coats. "Wet on Wet"
Temperature: 45-95 F
Application Tools: Pad, Sprayer, Brush, Roller
Dry Time: 12-72 Hours
Cleanup: Mineral Spirits
State VOC Limits: Compliant in all States
More Info:

Product Data

TWP 1500 Series Info



Thursday, 19 October 2017

Save money with the TWP 1500 Series 5 Gallons and Gemini Cleaner/Brightener kit!

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  • We will reply to your comment shortly
    Marty D · 03/19/2023
    Applied 1500 to our deck 3-4 years ago.  In need of stain again.  Do I need to use both products in the Restore A Deck kit prior to applying stain or just the cleaner?  
    • We will reply to your comment shortly
      TWP Stains · 03/19/2023
      Best to clean and brighten for prep with the Gemini Restore Kit.
  • We will reply to your comment shortly
    Pete · 07/30/2022
    If the siding may have been treated many years ago, but is clean and brushed, can the 1500 TWP just be sprayed or brushed on? Do you recommend adding any solvent to aid with penetration of stain? Is it necessary to wipe TWP stain once dried for 30 min? Thanks!
    • We will reply to your comment shortly
      TWP Stains · 07/30/2022
      Any prior coatings have to be removed first. Post pics for prep help. Do not add solvent to the stain. 
      • We will reply to your comment shortly
        John Mendiola · 08/03/2022
        So I have the 1500 type stain on my deck from almost two years ago. Do I just need to apply the Gemini brightener and cleaner, then apply another coat of the same stain? 

        Is the prior coat removed by applying the kits in order for the deck to be recoated/maintained?
        • We will reply to your comment shortly
          TWP Stains · 08/03/2022
          Yes, you need the Gemini Restore Kit for prep when recoating with the same color and stain.
  • We will reply to your comment shortly
    Pete · 07/29/2022
    I've got a purple ♡ deck that has been previously treated with Penofin products. Currently, the deck is pressure washed multiple times and dry, no longer retaining any of the Penofin color. Can I go directly to stain with 1500, or would I use the cleaner/brightener, or do both? then, after the stain is applied, do I wipe down(as is necessary with Penofin) or simply put the second coat down while the previous application is still wet? 
    I went to the trouble of sanding the entire deck last year, cleaned and brightened, then restained and thought I'd get more than a year for my effort. I liked the result, but it wasn't durable. I've had several recommendations for TWP, so thought to ask. Last, can the 1500 be used to treat ship lap fir siding? 
    • We will reply to your comment shortly
      TWP Stains · 07/30/2022
      Use the Gemini Restore Kit for prep. Just one coat of the TWP stains. You can use it on siding as long as it is free of prior coatings.
  • We will reply to your comment shortly
    McNallie · 07/25/2022
    500 sq ft Ipe deck over neoprene roofing. Stained 2 years ago. Want to use WTP 1500 Series 1503 Dark Oak. How do I Clean and Prep! Photos attached
  • We will reply to your comment shortly
    RJ · 06/18/2022
    Last year I used the 1500 combo to treat our deck.  Unfortunately there was a light rain towards the end of the 24 hour drying period, and we suspect that's the reason it didn't take as well as I thought it would.  The vertical surfaces still look great, but the horizontal ones are uneven in terms of color and shedding water.  I thought I read last year that we can brighten the deck again (a year later) using the remaining brightener and use the remaining stain to stain it.  I remember that the stain doesn't last much longer than a year before becoming unusable, so we are eager to move on this ASAP.  Can you tell me exactly how to proceed: we don't have that many suitable days and I want to act at the earliest opportunity, which may in fact be tomorrow!  We have remaining brightener and stain, but none of the cleaner.
    • We will reply to your comment shortly
      TWP Stains · 06/19/2022
      You need to clean and brighten when recoating. Brightener alone will not prep for recoating.
  • We will reply to your comment shortly
    CE Crouse · 06/12/2022
    I purchased a 1500 combo pack and had it shipped to Tennessee. I live in Kentucky and want to know if I can get the instructions online to review before I go down to work on the deck?
  • We will reply to your comment shortly
    Jason · 05/22/2022
    Sorry to ask another question.  Our builder stained our 6x6 posts supporting the covered portion of the deck a standard Minwax dark walnut stain.  He also stained the railing framing portion.   He wasn't sure how best to stain these and he had his superintendent do it for us, so they did what they knew.  Will it work ok if I use the Gemini cleaner and brightener and then follow with the black walnut TWP preservative?
    • We will reply to your comment shortly
      TWP Stains · 05/22/2022
      The minwax has to be removed first. Sanding is most likely needed. 
  • We will reply to your comment shortly
    Jason · 05/21/2022
    What's the difference between a wood preservative like the 1500 and sealer?  We are in our second year in the newly built house. I've cleaned and sanded the surface of our deck getting it ready and was looking at options having come across some really good reviews for TWP.  I just want to make sure I use the right product for the right purpose, to protect the wood from rain/weather, UV, and wear. We are in TN.  Also, does the 1500 Natural have a slight tone to it to help even the coloration when applied?  We like the natural color, but would like a consistent look too.
  • We will reply to your comment shortly
    Nickoals D · 03/01/2022
    Hello! We are getting ready to re-stain our log house in the spring time. Last known staining was in 2017, and the previous owners used the TWP 1530. To stain this spring, do we need to use 'Restore a Deck' first then apply the stain?
    Thank you!
    • We will reply to your comment shortly
      TWP Stains · 03/01/2022
      Yes. Use the Gemini Restore Kit. 
  • We will reply to your comment shortly
    james hopkins · 10/10/2021
    do you need to power wash the deck prior to the cleaner
    • We will reply to your comment shortly
      TWP Stains · 10/10/2021
      No, you pressure wash while using the cleaner.
  • We will reply to your comment shortly
    Mick · 09/18/2021
    I applied 1501 2 years ago to Cedar.  After clean and brighten, can I apply a new color 1516 without any problem?
  • We will reply to your comment shortly
    rachelb631 · 07/05/2021
    We have a 10 year old pressure-treated deck that has been stained twice, but is now looking very much like it should have received some TLC 2 years ago.  We tried cleaning it - pressure-washing, chemicals etc - but it looked worse than ever.  Today we power-sanded the deck (tomorrow it will be the railings) which was a massive improvement and it looks ready to take the stain.  Do we need to clean and brighten as well, or can we just go ahead and use the TWP1500?  
    • We will reply to your comment shortly
      TWP Stains · 07/06/2021
      Clean and brighten to open up the wood grain so the TWP can soak into the wood fully.
  • We will reply to your comment shortly
    Sonja · 05/26/2021
    I stained my cedar post last year in 1502. The hand rails were damanged in a hail storm. Do i need to sand before applying new stain?
  • We will reply to your comment shortly
    Juanita F · 05/05/2021
    I used TWP semi transparent stain in the past the color was RUSTIC OAK.  Now by law I have to order the 1500 series since I live in Indiana.  The color choice I see here is RUSTIC.  Is that the same as my previous color?? If not, can I still use the cleaner, brightener or do I need the stripper, Brightener?  Thanks in advance.Juanita Fernandez
    • We will reply to your comment shortly
      TWP Stains · 05/05/2021
      Clean and brighten for prep and then you can use the TWP 1516 Rustic.
  • We will reply to your comment shortly
    Duane · 04/21/2021
    First time staining a deck. New cedar decking was installed eight months ago. Boards became grey colored. We used cleaner/brightener kit. After a day of drying, the boards look pale, so want to make sure we are on the right track. The boards color looked better while wet after cleaning. Attached are photos of the dry boards. Is any additional prep needed before staining these boards?  Thank you!
  • We will reply to your comment shortly
    Mike · 04/06/2021
    Good evening. I live in CT and am looking to stain my deck with the 1501 cedar tone. The deck is about 450 sq ft surface area(not including sides. And no wood fence around it). I had the deck built with PT wood about two years ago but have not done anything to it. The deck is around an in-ground pool (chlorine). Do I still need to use the cleaner and brighter product prior to staining? Also will the stain be ok with the chlorine from the pool? I plan on staining way before the pool is opened.
    • We will reply to your comment shortly
      TWP Stains · 04/06/2021
      Yes, you need the Gemini Restore Kit for prep.
  • We will reply to your comment shortly
    Jason · 08/06/2020
    I am about to order and start staining a new fence. However, I believe the process will take more than one day (it is a large fence...)

    What is the best way to store the stain brush between days/uses? Also, true mineral spirits are banned in Southern CA... is there another product I can use to clean off my brushes at the end of the project/keep on hand in case of over-application?
    • We will reply to your comment shortly
      TWP Stains · 08/06/2020
      Wrap brushes in a plastic bag so it does not dry out. Sorry but not sure what options you have in CA that will clean properly.
      • We will reply to your comment shortly
        Jason · 08/06/2020
        We have access to lacquer thinner, paint thinner, acetone, and "painter's solvent" (which they claim is a replacement for MEK). Would any of those work?
        • We will reply to your comment shortly
          TWP Stains · 08/07/2020
          In theory, they should all work as long as they are a solvent.
  • We will reply to your comment shortly
    Jim · 07/02/2020
    We're looking to refinish our 13 year old, covered, mostly W/NW facing, fir, wrap around porch in Connecticut. We had trouble determining how to finish it originally, and believe it was two coats of minwax stain (the first one made it look raspberry), but don't believe they're solid, although it looks pretty solid after they did two coats. Would the cleaner/brightner work for this application? Or will we need to sand it down?
    • We will reply to your comment shortly
      TWP Stains · 07/02/2020
      You will have to sand it off.
      • We will reply to your comment shortly
        Jim · 07/02/2020
        Thanks - not the answer I was hoping for though lol. I said cleaner/brightner - I meant the stripper. So if we sand it all down, we'd then just need the stain, and not the other parts of the bundle?
        • We will reply to your comment shortly
          TWP Stains · 07/03/2020
          If you sand it all off you will need to do a final prep with the cleaner and brightener.
          • We will reply to your comment shortly
            Jim · 07/11/2020
            Thanks again for your prompt response. We've had to regroup and replan what we're doing after getting advice from several people. After all that we've settled on the following, and just want to make sure we understand the nature of this product:
            Step 1: We will sand off the existing stain down to bare wood
            Step 2: Followed immediately by using the cleaner and brightener (not the stripper)
            Step 3: Followed immediately by applying a coat stain
            Step 4: Followed immediately by applying a second coat of stain

            Our expectations are that this should last several years, and then to redo it, we'd just have to repeat steps 2 and 3, and would not need to keep re-sanding every time needed to freshen it up.

            Does that seem correct?
            • We will reply to your comment shortly
              TWP Stains · 07/12/2020
              Just one coat is needed since you will power sand this off. When redoing, just clean and brighten for prep.
  • We will reply to your comment shortly
    Ryan · 06/02/2020
    This weekend I stained my deck for the first time. Two coats, wet on wet, about 30 minutes apart. It's been about 36 hours of dry time, and I'm noticing little shiny patches - excess. Can I wipe that with a rag and it will be fine, or do I need to do something else?

    What is the approx lift expectancy of a coat of stain? When should I expect to need to stain the deck again?

    Lastly, the TWP estimator said I needed 9 gallons. I only use about 6. Either the estimator is off, or I did something wrong. I've transferred the stain to empty gallon containers. What is the shelf life of the stain? 1500 series.
  • We will reply to your comment shortly
    Norma · 05/31/2020
    I just put a TWP 1500 in my card and it offered the Cleaner and Brightener, bring the total to $235. Is that the same product as the Gemini Restore-a-Deck Cleaner and Brightener? If not, what is the difference. Thank you