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.

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SEAL-ONCE Marine Penetrating Wood Sealer and Waterproofer, Clear, 1 Gallon

Product ID: 383547569

Details

Brand
Seal-Once
Item Weight
8.8 Pounds
Item dimensions L x W x H
22.9 x 22.9 x
Material
oil based
Style
Outdoor

🌞UV-stable, weather-resistant coating

💧Deep penetrating waterproofing

♻️Ultra-low VOC, eco-friendly formula

303179CFA

Duties & taxes included

In stock

Sold byAmazon SenegalDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

💧 Seal your wood’s future with marine-grade, invisible armor!

ALL IN ONE SOLUTION - Seals, stains, and waterproofs with a fast-drying, easy soap-and-water cleanup
NANOTECH PENETRATION - Seals wood fibers at the cellular level for unmatched durability
ECO CONSCIOUS FORMULA - Ultra-low VOC and non-toxic, protecting your wood and the planet
MARINE GRADE PROTECTION - Safe for use over open water without harming aquatic life
FLEXIBLE BREATHABLE BARRIER - Allows wood to expand, contract, and breathe—no cracking or peeling

SEAL-ONCE Marine Penetrating Wood Sealer is a 1-gallon, water-based, ultra-low VOC formula designed to protect outdoor wood surfaces in high-moisture environments. Using proprietary nanotechnology, it penetrates deep into wood fibers to create a flexible, breathable, and UV-stable barrier that prevents water damage, decay, mold, and warping. Safe for use over open water and non-toxic to aquatic life, it preserves the natural beauty of wood without film formation or peeling.

Specifications

ASIN	B00EQ89RYW
Brand Name	Seal-Once
Colour	Wood
Compatible Material	Wood
Country of Publication	USA
Customer Reviews	4.3 4.3 out of 5 stars (1,807)
Included Components	SEAL-ONCE MARINE - 1 Gallon Penetrating Wood Sealer, Waterproofer & Stain. Water
Item Dimensions	22.9 x 22.9 x 17.8 Centimeters
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
Manufacturer Part Number	7614
Material Type	oil based, water based
Model	7614
Number of Items	1
Number of Packs	1
Style Name	Outdoor
Surface Recommendation	Wood
UPC	850336001024
Unit Count	3785.41 Milliliters
Water Resistance Level	Waterproof

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