Can it be used on green treated lumber

Pressure treated lumber has to be dry.

Can you use a regular wood stain after applying?

Yes the clear MARINE can be painted or stained. Or you can purchase a tint for SEAL-ONCE and use the MARINE as a sealer and stain. MARINE Features: • Clear formula can be painted or stained after treatment • Tinted formula provides additional UV protection • Available in 11 semi-transparent tint colors • Eco-friendly, Non-toxic; will not harm pets, plants, people or marine life • Ultra-low VOC, Water based • Can be applied around or over fresh or salt water • Flexible, breathable barrier, Stabilizes & protects wood • Prevents warping, cupping, wood rot & decay • Resistant to salt water spray • Prevents mold, mildew & algae growth • Soap and water cleanup

I want to use this on a 6x6 wood beam at the opening to my walk-in shower (floor to ceiling). No direct shower spray. Will this seal it?

Yes you may use it for this specific application. As suggested in a comment down bellow, you would want to make sure that it is fully cured before using the shower. Typically it would take 48 hours to cure but it may take longer depending on the environment.

does this work for the interior of a sauna , safe to sit on?

It dries to a hard, smooth finish, is non toxic and nice to look at. Would be safe to sit on...other types of recreation may require caution.

Marine | Desertcart Norway

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Description

🛠️ Seal the deal on lasting wood protection—because your outdoor spaces deserve the best!

ALL IN ONE WOOD CARE - Seals, stains, and waterproofs in a single easy application—perfect for decks, docks, and outdoor furniture.
MARINE GRADE DURABILITY - Shield your outdoor wood from saltwater spray and harsh UV rays with a proven marine sealant.
ECO CONSCIOUS PROTECTION - Ultra-low VOC and non-toxic to aquatic life—safe for your family, pets, and the environment.
DEEP CELLULAR PENETRATION - Our fast-drying formula penetrates below the surface to create a flexible, breathable barrier that lasts.
OPTIMIZED FOR HIGH MOISTURE AREAS - Specifically designed for wood exposed to lakes, oceans, ponds, and poolside environments.

SEAL-ONCE Marine Penetrating Wood Sealer and Waterproofer is a clear, water-based, ultra-low VOC formula designed to protect wood in high-moisture environments. It creates a UV-stable, waterproof barrier by penetrating wood fibers at the cellular level, extending the life of outdoor furniture, docks, decks, and siding. Safe for use near open water and non-toxic to aquatic life, this fast-drying sealer offers an all-in-one solution for sealing, staining, and waterproofing wood surfaces exposed to saltwater spray and weather elements.

Specifications

ASIN	B00EQ89RYW
Best Sellers Rank	#5,636 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #18 in Household Stains
Brand Name	Seal-Once
Color	Clear
Compatible Material	Wood
Customer Reviews	4.3 4.3 out of 5 stars (1,947)
Included Components	SEAL-ONCE MARINE - 1 Gallon Penetrating Wood Sealer, Waterproofer & Stain. Water
Item Dimensions	9 x 9 x 7 inches
Item Form	Liquid
Item Highlight	Waterproofer & Stain, Water-Based, Ultra-low VOC formula, For high-moisture areas
Item Weight	8.8 pounds
Manufacturer	New Image Coatings, LLC
Material Type	Polyurethane
Model	7614
Number of Items	1
Number of Packs	1
Part Number	7614
Style Name	Outdoor
Surface Recommendation	Walls,Wood
UPC	850336001024
Unit Count	128 Fluid Ounces
Water Resistance Level	Waterproof

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2382 kr

Duties & taxes included

In stock

Sold byAmazon NorwayDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Norway.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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Marine

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