Shelf Life of TWP

Shelf life of TWP Deck StainsShelf Life of TWP

After an exterior staining project with TWP, Total Wood Preservative Stain you may have some extra left over. Or you may have bought some TWP wood stain intending to use it and just haven’t got around to it. Whether you have some left over or the season ended before you could use it, TWP wood stain will store and keep fresh with proper care.

TWP Wood Preservative has a shelf life of several years if it has been unopened. So if you ran out of time at the end of the season do not worry, you can still use it when you are ready. If the TWP stain has sat around for awhile, it is recommended to take the stain to a paint store and have them shake the cans up before using them.

If you used TWP stain and have some left over, the extra will last 1-2 years as long as the lid is completely resealed. If the lid is not sealed properly evaporation of the stain solvents will occur and the stain will become thicker and be rendered useless. Be sure the lid is completely sealed to stop any evaporation from happening. This will ensure the left over TWP can be used on your next wood maintenance project.

Tips for Storing TWP Wood Stain

When storing TWP stain it is best to keep it in a cool dry place preferably at room temperature.

It should be kept out of direct sunlight if possible.

Oil based stains like TWP can be stored in colder weather and in some instances even below freezing. The oil formula will simply thicken, unlike water-based stains that would actually freeze solid. With that said if you have a choice and can bring the stain into the basement or partially heated garage for the winter that would be best.

If you have several partial cans of TWP stain it is best to combine them to make a full can. The less empty space in the can the better. Air above the stain will cause a skin or gel to form on the surface. This can be removed but it is better to have one full can and just a little left in another than to have two partially half full cans of TWP stain.

Be sure the lid is on tight to eliminate the solvents from evaporating.

As soon as you finish a project it is helpful to mark on the lid what you used the TWP stain for. This way when you use the stain a year or two later you won’t have to guess.

Follow these storage tips to increase the shelf life of your TWP wood and deck stains and they will last for several years saving you money.

 

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15 Comments on "Shelf Life of TWP"

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Mary
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Mary

Is there a trick to opening and closing the 100 series 5 gallon bucket? I had a heck of time getting it open and now that my project is done, I want to make sure I seal it properly so I can reuse when needed. Is there a special tool to use?

Donna
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Donna

Will I have to restain my fence within six years if I use TWP 1500 stain?

Mike
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Mike

I just purchased 2 gal. Of TWP 101 ceder stain the dealer told me he had shaken can to mix but when I opened can all color was at bottom. I only have paint stir sticks and it is almost impossible to get color from bottom of can to mix ???

TWPStainHelp
Guest
TWPStainHelp

With the stir sticks or a drill mixer will work.

Anthony Klick
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Anthony Klick

If the lid is on tight and doesn’t leak store the can upside down (Lid on the bottom). Nothing can evaporate through a fully sealed can. It is an old trick many plumbers use for their leftover epoxy and cements. Helps things last years and ensures it will always be ready when you need it!

Trudy
Guest
Trudy

I stained my pressure treated wooden deck with 1515 Honeytone in 2012. Love it!!! Can I put another coat on this year without stripping it?? If so what would the prep process be?

TWPStainHelp
Guest
TWPStainHelp

Yes but you will need to prep first with the Gemini Restore Kit first and you may need two coats since it has been 3 years.

Warren
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Warren

I have stored some TWP 100 for 2 years, a 5 gallon pail 1/2 full. It has thickened some about the consistency of an interior latex paint. After thoroughly mixing I have stained a small section of cedar siding, it looks good, but should I be concerned with the change of viscosity?

TWPStainHelp
Guest
TWPStainHelp

It is no longer good at this point.

Dwight Spencer
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Dwight Spencer

What is the shelf life of an never-opened gallon can of TWP 100? Should it be shaken?

TWPStainHelp
Guest
TWPStainHelp

Yes it needs to be shaken or stirred well. 2 to 3 years if unopened.

TWPStainHelp
Guest
TWPStainHelp

Yes that is fine.

Bill
Guest
Bill

Can TWP 100 stain be stored in plastic containers such as an old hydraulic oil 5 gallon bucket? The seal on my metal lid is deformed and I’m concerned it is not sealing completely. The buckets for the oil have been cleaned and have a good sealing lid.

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