Woodguard Stain
FREE SHIPPING ON 5 GALLON & 1 GALLON PAILS TO CONTINENTAL USA.
Free Ground Shipping on 1 Gallon and 5 Gallon Pails
We are offering free shipping for 1 gallon and 5 gallon pails of this product purchased online and shipping to the Lower 48 United States. Offer does not apply to Alaska, Hawaii, and the US Territories. Free Shipping applies to this item only and not the entire order.
WoodGuard Exterior Stain is an oil-based exterior wood preservative for log homes, wood siding and shake shingles. WoodGuard protects against fading and discoloration due to decay, fungus and mold while providing water repellency by penetrating deeply into the wood. Only one coat is needed with this quality product that begins protecting wood with the first application.
WoodGuard also protects against cupping, curling and warping as well as insects such as powder post beetles and termites. WoodGuard is VOC compliant in all 50 states. The active ingredient, copper 8 quinolinolate is suitable for use on wood that may have incidental food contact.
WoodGuard Exterior Stain Features and Benefits
• Exceptional water repellency on sloping and vertical surfaces.
• One coat coverage. (Apply to the point of refusal.)
• Controls mold and decay as well as wood cupping and warping.
• Toxic to termites and anobiid powderpost beetles.
• Well suited for applications where environmental safety is needed.
• Active ingredient Copper 8-Quinolinolate will not photodegrade.
• Highly UV-stable.
WoodGuard Exterior Stain Recommended Usage
• WoodGuard can be used on siding, trim, doors, garage doors, windows, logs, fences.
• WoodGuard stain should not be used on and horizontal surfaces that may be walked on such as a deck. Please check out WoodGuard SWO or Sikkens Proluxe Cetol SRD if you are in need of a premium deck stain.

WoodGuard Stain Sample Cans
• We highly recommend that you try a sample can of any new stain color you are considering. The finished color of translucent stains can vary substantially based on species, texture, porosity of wood, and application technique. Sampling on your own wood is inexpensive and the best way to make sure you get the color you want for your home.
Product Resources:
• Woodguard Product Brochure
Guides / Product Info |
Woodguard Application & Technical Resources: WoodGuard Exterior Stain Coverage Rate and Maintenance Coat Schedule WoodGuard Exterior Stain Application Methods WoodGuard Special Instructions for Decks WoodGuard Exterior Stain Surface Preparation Caulking Cracks, Checks, and Gaps: Checking Moisture Content Before Staining WoodGuard Exterior Stain Application Instructions WoodGuard Exterior Stain Do’s and Don’ts Application Don’t’s… WoodGuard Exterior Stain Clean Up and Storage WoodGuard Exterior Stain Maintenance Information CA Residents Prop 65: www.p65warnings.ca.gov |
---|
- Reviews
- Questions
Adams cabin
I have used wood guard for many years it’s not what it used to be it washes off with rain I will be looking into a different product

Best Preservative out there
Coating interior ceiling of wrap around porch, it has really brought out the wood quality that hasn't been seen like this in years. First coated it 15 years ago. Although the ceiling area does not get wet or exposed to SUV rays, it was terribly dry and needed refreshing. Had to order another 5 gallons because the first 5 gallons got ****** up by the dry wood. Overall pleased.

Great Product
This is an easy product to apply. We had to spray it on the ends of the home due to height but have brushed it on the front and back. It definitely covers well and goes further than we anticipated. It had been too long since anything had been put on the logs and one end was in desperate need. I inherited the home so we planned on this year giving attention to the outside. I purchased 5 gallons and although the bucket has a convenient pop up pour spout, you can’t get any suitable mixing device into the opening to blend the color and oils together. We flipped it upside down for a couple days and then rolled the bucket on its side to try and mix it best we could. We rolled the bucket each time before a refill.


Best stain!
Excellent! Have used now since 2004 when we built first log cabin. Looks great and lasts.

Overall a great product
We have had our log house for about 20 years now. I've only ever used woodguard on it. Coming from someone who has looked at a lot of log homes up close, the difference between the latex type stains and the oil-based stains is pretty stark. I will never put a latex type stain on my home. The problem with latex type stains is when it goes, it's **** and it leaves zero protection on the logs. Oil based products like woodguard they go gradually and don't look quite as bad when they need to be redone. Woodguard itself looks great on the logs and seems to really protect them well. Two things you have to be very careful of when using an oil-based product is you definitely need to clean the logs very well before applying. That means zero black mold it can't be understated that you need to use bleach and scrub the logs if there's any black mold. The second thing that you absolutely must do is use a moisture meter to make sure the logs are dry enough before you apply woodguard. Once properly applied, it should last 5 to 10 years depending on exposure. This is assuming it's already had its ****** coat of woodguard before. Initial coats don't last quite as long. One more thing I'd like to mention, if you have any problems with Carpenter bees, it's important that you add an additive because even though the woodguard product says it will repel these insects, my experiences it does not do a good enough job.


Great Product
I have used Wood Guard for 20 years on my log cabin. This is the 5th time staining it great product Shipment came complete without any issues I recommend Twin Creek and Wood Guard to anyone who wants quick free shipping and great stain

Quality of Wooguard
We have used Woogard on numerous Log Homes primarily pine,cedar & some hemlock. The results are consistent with protections and apperance over 20 + years of fabrication and construction.



Product Questions
-
Can I get a 1 gallon pail of Woodguard Iron Gray?
I'm sorry, ISK Biocides currently only makes the Woodguard Iron Gray color in 5 gallon pails.
-
Will mixing the dark walnut Woodguard with the clear Woodguard stain lighten the color of the stain so it doesn't come out too dark on the logs?
You are correct. Mixing the Clear with the Dark Walnut should yield a more muted color than the Dark Walnut by itself. If you're looking for a medium brown color, you might want to sample the Honey 2000 or Tawny Cypress pre-mixed colors as well. We have free samples of all the Woodguard factory colors.
-
Can you apply Sand and Seal over Woodguard stain? Is it acceptable?
I would highly recommend against this combination. Some Sand and Seal formulations may adhere over the top of Woodguard, but you can expect all of them to interfere with maintenance coats of Woodguard in later years.
Most exterior wood stains are designed as coatings; that is, they will form a barrier at the surface of the wood that works like a flexible coat of armor. Coatings attempt to keep sun and rain from passing into the wood while allowing water vapor to escape from the coating when it's hot outside. You can think of this as being protection from the outside-in.
Woodguard is formulated differently in that it is a deep penetrating oil. Their intent is for the stain to dive deep into the wood fibers, leaving little barrier at the surface. This pre-saturates the cells so that any moisture that enters the wood should be expelled. This protects the wood from the inside-out.
When you need to do a maintenance coat of Woodguard several years later, a coating product like Sand and Seal will prevent the Woodguard from penetrating into the wood correctly. -
Is there a clear top coat I can do as a maintenance over Woodguard? Say, maybe 3 or 4 years down the road?
ISK Biocides makes a clear color option of Woodguard that you can use as a maintenance coat. It is the same product, just without any added pigment. Woodguard in Clear also has the same flat sheen level as the colors. Woodguard does not have a separate clear topcoat. Any coating that bonds at the surface of the wood can block Woodguard from penetrating deep into the wood fibers as intended.
-
Why does the Woodguard clear color have a green undertone?
Woodguard utilizes an active ingredient known as copper 8-quinolinolate to aid in preserving wood from mold and mildew. Because it is copper based, this ingredient has a naturally greenish appearance. You can typically only see its presence in the clear Woodguard as the green tint is masked by the pigments in all of the tinted color options. The untinted Woodguard does dry clear and does not leave a green tint to your wood project.
-
What is the gloss level expected if the clear is applied to weathered logs? High gloss or low gloss?
Woodguard is fairly unique in that it is a deep penetrating oil. This product was formulated to dive deep into the wood fiber in order to protect the wood from the inside out. By contrast, most finishes are formulated as coatings, and are intended to leave a thin, breathable barrier that will protect the wood from the outside in. Consequently, as the Woodguard moves beyond the wood surface, it will leave a matte (no/low sheen) finish, no matter whether the logs are new or weathered.
-
What is the color of the house shown on the Woodguard bucket?
Our company spoke with a representative at Woodguard's manufacturer and was informed me that the Warm Pecan color was used on this house.
-
I last used Woodguard several years ago and have a couple of gallons left over. Will this still be good to use or should I discard it?
Woodguard has an exceptional shelf life so more than likely your leftover Woodguard should be just fine. When you get ready to restain, be sure and stir the older stain very well and then add it to your new product to blend or "box" the colors. If the older stain appears to be clumpy or thick, then I would suggest discarding it and proceed with new stain.
-
What does the Copper-8 Quinolinolate do?
Copper-8-Quinolinolate is an insecticide used for a variety of wood protection and preservation purposes. It is toxic to wood decay and insects, but has low toxicity to humans and animals. For further information, here is a link to a more in-depth article by the U.S. Forest Service: http://www.fs.fed.us/t-d/pubs/htmlpubs/htm06772809/page02.htm.
-
Can this product be sprayed on with an airless sprayer? Also, what is the coverage per square foot for each gallon?
It is not recommended to spray on Woodguard with an airless sprayer because the product will not saturate the wood properly. Woodguard can be applied with a low-pressure or "pump-up" sprayer. When applying Woodguard with a sprayer, make sure that the nozzle it set to deliver a low-pressure, coarse spray.
Woodguard covers approximately 200 sq. ft/gal. on smooth wood. Woodguard stain should be applied to the point of refusal. -
How does Woodguard need to be applied? Is there a specific type brush that needs to be used?
Below are the recommended application instructions for Woodguard stain:
- Spray -- Low-pressure spray or "pump-up spray" equipment is suitable. Set nozzle to deliver a low-pressure, coarse spray. Do not use airless spray equipment.
- Brush -- A regular paintbrush is fine for most surfaces. For uneven or rough surfaces, use a stiff-bristle brush.
- Roller -- Use a long nap for rough surfaces. Apply Woodguard to the point of refusal (until it starts to run) and have someone follow to back brush the applied Woodguard to a smooth uniform coating.
DETAILS
Free Ground Shipping on 1 Gallon and 5 Gallon Pails
We are offering free shipping for 1 gallon and 5 gallon pails of this product purchased online and shipping to the Lower 48 United States. Offer does not apply to Alaska, Hawaii, and the US Territories. Free Shipping applies to this item only and not the entire order.
WoodGuard Exterior Stain is an oil-based exterior wood preservative for log homes, wood siding and shake shingles. WoodGuard protects against fading and discoloration due to decay, fungus and mold while providing water repellency by penetrating deeply into the wood. Only one coat is needed with this quality product that begins protecting wood with the first application.
WoodGuard also protects against cupping, curling and warping as well as insects such as powder post beetles and termites. WoodGuard is VOC compliant in all 50 states. The active ingredient, copper 8 quinolinolate is suitable for use on wood that may have incidental food contact.
WoodGuard Exterior Stain Features and Benefits
• Exceptional water repellency on sloping and vertical surfaces.
• One coat coverage. (Apply to the point of refusal.)
• Controls mold and decay as well as wood cupping and warping.
• Toxic to termites and anobiid powderpost beetles.
• Well suited for applications where environmental safety is needed.
• Active ingredient Copper 8-Quinolinolate will not photodegrade.
• Highly UV-stable.
WoodGuard Exterior Stain Recommended Usage
• WoodGuard can be used on siding, trim, doors, garage doors, windows, logs, fences.
• WoodGuard stain should not be used on and horizontal surfaces that may be walked on such as a deck. Please check out WoodGuard SWO or Sikkens Proluxe Cetol SRD if you are in need of a premium deck stain.

WoodGuard Stain Sample Cans
• We highly recommend that you try a sample can of any new stain color you are considering. The finished color of translucent stains can vary substantially based on species, texture, porosity of wood, and application technique. Sampling on your own wood is inexpensive and the best way to make sure you get the color you want for your home.
Product Resources:
• Woodguard Product Brochure
MORE INFORMATION
Guides / Product Info |
Woodguard Application & Technical Resources: WoodGuard Exterior Stain Coverage Rate and Maintenance Coat Schedule WoodGuard Exterior Stain Application Methods WoodGuard Special Instructions for Decks WoodGuard Exterior Stain Surface Preparation Caulking Cracks, Checks, and Gaps: Checking Moisture Content Before Staining WoodGuard Exterior Stain Application Instructions WoodGuard Exterior Stain Do’s and Don’ts Application Don’t’s… WoodGuard Exterior Stain Clean Up and Storage WoodGuard Exterior Stain Maintenance Information CA Residents Prop 65: www.p65warnings.ca.gov |
---|
REVIEWS
- Reviews
- Questions
Adams cabin
I have used wood guard for many years it’s not what it used to be it washes off with rain I will be looking into a different product

Best Preservative out there
Coating interior ceiling of wrap around porch, it has really brought out the wood quality that hasn't been seen like this in years. First coated it 15 years ago. Although the ceiling area does not get wet or exposed to SUV rays, it was terribly dry and needed refreshing. Had to order another 5 gallons because the first 5 gallons got ****** up by the dry wood. Overall pleased.

Great Product
This is an easy product to apply. We had to spray it on the ends of the home due to height but have brushed it on the front and back. It definitely covers well and goes further than we anticipated. It had been too long since anything had been put on the logs and one end was in desperate need. I inherited the home so we planned on this year giving attention to the outside. I purchased 5 gallons and although the bucket has a convenient pop up pour spout, you can’t get any suitable mixing device into the opening to blend the color and oils together. We flipped it upside down for a couple days and then rolled the bucket on its side to try and mix it best we could. We rolled the bucket each time before a refill.


Best stain!
Excellent! Have used now since 2004 when we built first log cabin. Looks great and lasts.

Overall a great product
We have had our log house for about 20 years now. I've only ever used woodguard on it. Coming from someone who has looked at a lot of log homes up close, the difference between the latex type stains and the oil-based stains is pretty stark. I will never put a latex type stain on my home. The problem with latex type stains is when it goes, it's **** and it leaves zero protection on the logs. Oil based products like woodguard they go gradually and don't look quite as bad when they need to be redone. Woodguard itself looks great on the logs and seems to really protect them well. Two things you have to be very careful of when using an oil-based product is you definitely need to clean the logs very well before applying. That means zero black mold it can't be understated that you need to use bleach and scrub the logs if there's any black mold. The second thing that you absolutely must do is use a moisture meter to make sure the logs are dry enough before you apply woodguard. Once properly applied, it should last 5 to 10 years depending on exposure. This is assuming it's already had its ****** coat of woodguard before. Initial coats don't last quite as long. One more thing I'd like to mention, if you have any problems with Carpenter bees, it's important that you add an additive because even though the woodguard product says it will repel these insects, my experiences it does not do a good enough job.


Great Product
I have used Wood Guard for 20 years on my log cabin. This is the 5th time staining it great product Shipment came complete without any issues I recommend Twin Creek and Wood Guard to anyone who wants quick free shipping and great stain

Quality of Wooguard
We have used Woogard on numerous Log Homes primarily pine,cedar & some hemlock. The results are consistent with protections and apperance over 20 + years of fabrication and construction.



PRODUCT QUESTIONS
Product Questions
-
Can I get a 1 gallon pail of Woodguard Iron Gray?
I'm sorry, ISK Biocides currently only makes the Woodguard Iron Gray color in 5 gallon pails.
-
Will mixing the dark walnut Woodguard with the clear Woodguard stain lighten the color of the stain so it doesn't come out too dark on the logs?
You are correct. Mixing the Clear with the Dark Walnut should yield a more muted color than the Dark Walnut by itself. If you're looking for a medium brown color, you might want to sample the Honey 2000 or Tawny Cypress pre-mixed colors as well. We have free samples of all the Woodguard factory colors.
-
Can you apply Sand and Seal over Woodguard stain? Is it acceptable?
I would highly recommend against this combination. Some Sand and Seal formulations may adhere over the top of Woodguard, but you can expect all of them to interfere with maintenance coats of Woodguard in later years.
Most exterior wood stains are designed as coatings; that is, they will form a barrier at the surface of the wood that works like a flexible coat of armor. Coatings attempt to keep sun and rain from passing into the wood while allowing water vapor to escape from the coating when it's hot outside. You can think of this as being protection from the outside-in.
Woodguard is formulated differently in that it is a deep penetrating oil. Their intent is for the stain to dive deep into the wood fibers, leaving little barrier at the surface. This pre-saturates the cells so that any moisture that enters the wood should be expelled. This protects the wood from the inside-out.
When you need to do a maintenance coat of Woodguard several years later, a coating product like Sand and Seal will prevent the Woodguard from penetrating into the wood correctly. -
Is there a clear top coat I can do as a maintenance over Woodguard? Say, maybe 3 or 4 years down the road?
ISK Biocides makes a clear color option of Woodguard that you can use as a maintenance coat. It is the same product, just without any added pigment. Woodguard in Clear also has the same flat sheen level as the colors. Woodguard does not have a separate clear topcoat. Any coating that bonds at the surface of the wood can block Woodguard from penetrating deep into the wood fibers as intended.
-
Why does the Woodguard clear color have a green undertone?
Woodguard utilizes an active ingredient known as copper 8-quinolinolate to aid in preserving wood from mold and mildew. Because it is copper based, this ingredient has a naturally greenish appearance. You can typically only see its presence in the clear Woodguard as the green tint is masked by the pigments in all of the tinted color options. The untinted Woodguard does dry clear and does not leave a green tint to your wood project.
-
What is the gloss level expected if the clear is applied to weathered logs? High gloss or low gloss?
Woodguard is fairly unique in that it is a deep penetrating oil. This product was formulated to dive deep into the wood fiber in order to protect the wood from the inside out. By contrast, most finishes are formulated as coatings, and are intended to leave a thin, breathable barrier that will protect the wood from the outside in. Consequently, as the Woodguard moves beyond the wood surface, it will leave a matte (no/low sheen) finish, no matter whether the logs are new or weathered.
-
What is the color of the house shown on the Woodguard bucket?
Our company spoke with a representative at Woodguard's manufacturer and was informed me that the Warm Pecan color was used on this house.
-
I last used Woodguard several years ago and have a couple of gallons left over. Will this still be good to use or should I discard it?
Woodguard has an exceptional shelf life so more than likely your leftover Woodguard should be just fine. When you get ready to restain, be sure and stir the older stain very well and then add it to your new product to blend or "box" the colors. If the older stain appears to be clumpy or thick, then I would suggest discarding it and proceed with new stain.
-
What does the Copper-8 Quinolinolate do?
Copper-8-Quinolinolate is an insecticide used for a variety of wood protection and preservation purposes. It is toxic to wood decay and insects, but has low toxicity to humans and animals. For further information, here is a link to a more in-depth article by the U.S. Forest Service: http://www.fs.fed.us/t-d/pubs/htmlpubs/htm06772809/page02.htm.
-
Can this product be sprayed on with an airless sprayer? Also, what is the coverage per square foot for each gallon?
It is not recommended to spray on Woodguard with an airless sprayer because the product will not saturate the wood properly. Woodguard can be applied with a low-pressure or "pump-up" sprayer. When applying Woodguard with a sprayer, make sure that the nozzle it set to deliver a low-pressure, coarse spray.
Woodguard covers approximately 200 sq. ft/gal. on smooth wood. Woodguard stain should be applied to the point of refusal. -
How does Woodguard need to be applied? Is there a specific type brush that needs to be used?
Below are the recommended application instructions for Woodguard stain:
- Spray -- Low-pressure spray or "pump-up spray" equipment is suitable. Set nozzle to deliver a low-pressure, coarse spray. Do not use airless spray equipment.
- Brush -- A regular paintbrush is fine for most surfaces. For uneven or rough surfaces, use a stiff-bristle brush.
- Roller -- Use a long nap for rough surfaces. Apply Woodguard to the point of refusal (until it starts to run) and have someone follow to back brush the applied Woodguard to a smooth uniform coating.