Bluestone is a beautiful, durable natural stone that adds lasting appeal to floors, patios, and outdoor accents. Choosing the right sealer helps prevent staining, moisture damage, and UV fading without altering the stone’s natural color. This guide spotlights five top Bluestone sealers, covering penetrating and film-free options for interior and exterior use. Each product is chosen for stone compatibility, absorption characteristics, and long-term protection. The goal is to help homeowners, contractors, and DIYers compare durability, VOCs, application, and maintenance to pick the best match for their Bluestone project.
| Product | Brand | Main Benefit |
|---|---|---|
| Rockstar Bluestone Sealer | Rockstar Sealing | Oil and water repellency, stain resistance, UV stable |
| Armor WL550 Deep Penetrating 1 Gal | Foundation Armor | Deep penetrating matte wet look with long-lasting protection |
| Armor WL550 Matte Wet Look 16 Oz | Foundation Armor | Small-sample version of deep penetrating sealer |
| GET SERIOUS Paver Sealer | Black Diamond Stoneworks | All-in-one sealant with sand lock, wet look |
| Rain Guard Stone Sealer SP-6001 | Rain Guard Water Sealers | Concentrated water repellent protection for stone |
Rockstar Bluestone Sealer
Rockstar Bluestone Sealer provides penetrating protection designed for Bluestone and Basalt. It offers oil and water repellency and stain resistance while remaining UV stable, helping prevent color fading in sun-exposed areas. Notably, it does not change the stone’s appearance, and it does not inhibit water-vapor permeability, preserving natural breathability. This makes it suitable for outdoor patios and indoor stone features that endure weather and wear. The sealer forms a protective barrier below the surface, so the stone’s texture and feel stay intact while surface staining becomes less likely.
- Oil and water repellency
- Stain resistance
- UV stable
- Does not change look of the stone
- Breathable to water vapor
Armor WL550 Deep Penetrating 1 Gal
Armor WL550 is a professional-grade, solvent-based sealer that penetrates deeply to form a water-repellant barrier below the surface. It creates a matte wet look without leaving a surface film, enhancing color slightly while preserving the stone’s natural texture. The formula is designed to reduce liquid absorption by up to 95%, helping protect Bluestone, brick, natural stone, and masonry surfaces from water damage, cracking, and staining. Long-lasting protection typically spans several years, with items sealed appearing darker but feeling unchanged to the touch.
- Deep penetrating solvent-based formula
- Matte wet look with no surface film
- Reduces water absorption up to ~95%
- Color enhancement without gloss
- Long-lasting protection, typically several years
Armor WL550 Matte Wet Look 16 Oz Sample
This 16-ounce sample mirrors the full-size Armor WL550 in performance, delivering a deep penetrating, matte wet look finish below the surface. It locks in color and provides a water-repellant barrier while maintaining stone porosity and breathability. Ideal for testing on a small Bluestone area before broader application, the sample helps confirm color and penetration depth without committing to a large quantity.
- Sample size for testing
- Deep penetrating matte wet look
- Below-surface chemical reaction for protection
- Color enhancement without surface gloss
- Up to several years of protection
GET SERIOUS Paver Sealer
GET SERIOUS Paver Sealer is a versatile, water-based option designed for concrete, brick, natural stone, slate, Bluestone, patios, and driveways. It provides a strong seal that locks in paver sand, helping prevent washout and erosion of joints. The formula delivers a protective gloss finish and a durable barrier that reduces surface absorption while maintaining a natural feel. It’s particularly suitable for outdoor surfaces where joint stability and a balanced gloss are desired, offering broad compatibility with various paving materials.
- Stronger seal with sand lock
- Versatile for concrete, brick, stone, slate, Bluestone
- Gloss finish that protects and simplifies maintenance
Rain Guard Stone Sealer SP-6001
Rain Guard Stone Sealer SP-6001 is a premium stone sealer concentrate that makes one gallon when mixed. It dries to an invisible, stain-resistant finish that won’t yellow or alter texture. The Micro-Lok technology aids sealer absorption and forms a long-lasting, filmless hydrophobic barrier against weather, salt, dirt, UV exposure, and wind-driven rain. This makes it a cost-effective option for sealing vertical and horizontal stone surfaces, including floors, chimneys, and walkways, with maintenance-friendly, low-odor application.
- Concentrated formulation; makes 1 gallon
- Invisible, stain-resistant finish
- Long-lasting, filmless hydrophobic barrier
- Effective against weathering, salt, dirt, UV, and wind-driven rain
Buying Guide
Penetrating versus film-forming sealers
Penetrating sealers work below the surface to repel water while preserving breathability. They usually leave little or no surface film and can enhance color subtly. Film-forming sealers create a protective layer on top of the stone, which may alter texture or sheen. For Bluestone, penetrating sealers are often preferred for natural look and long-term breathability, while film-forming sealers can deliver a pronounced wet look but may require more maintenance.
Stone type and porosity considerations
Bluestone varies in porosity depending on quarry and finish. Highly porous Bluestone benefits more from deep-penetrating sealers that block water and stains without clogging pores. Denser Bluestone can tolerate breathability-focused sealers that emphasize UV stability and stain resistance. When selecting, consider whether you want enhanced color, a matte surface, or a glossy finish, and how the stone will be used (indoors, outdoors, or both).
Maintenance, durability, and reapplication intervals
Durability varies by product and environment. Solvent-based, penetrating sealers often last several years with proper maintenance, while water-based options may require more frequent reapplication in harsher climates. Exterior Bluestone subject to freeze-thaw cycles, heavy rainfall, and sun exposure benefits from sealers with strong water repellency and UV protection. Always follow manufacturer recommendations for reapplication intervals and surface cleaning before resealing.
Safety, VOCs, and indoor use
VOC content and odor are important for indoor projects. Water-based sealers typically have lower VOCs and milder fumes, suitable for indoor kitchens, bathrooms, and living areas adjacent to stone features. Solvent-based sealers often offer stronger penetration and durability but require adequate ventilation during application. For indoor countertops or food-contact surfaces, prioritize food-safe or health-certified products and ensure complete curing before use.
Application tips and best practices
Prepare the surface by cleaning and drying it thoroughly. Perform a small test area to confirm appearance changes and penetration depth. Apply evenly with a brush, roller, or sprayer, ensuring complete wetting without pooling. Allow adequate drying time between coats, and avoid sealing in high humidity or extreme heat. Re-clean surfaces before re-sealing and store concentrate products according to manufacturer instructions to preserve effectiveness.
Multisurface and budget considerations
If Bluestone sits adjacent to other materials (brick, concrete, metal), choose a sealer that is compatible across surfaces to simplify maintenance. Budget-friendly concentrates can be cost-effective for large patios, but account for mixing, application time, and multiple coats. For high-traffic outdoor areas, prioritize durability, water repellency, and UV stability to maximize value over time.