Hertron Hertro-Seal — Impregnating Stone Sealer

Let your stone breathe. Hertron® Hertro-Seal is a water-resistant impregnating sealer that protects your stone from within — rather than forming a film on top, it penetrates to shield the stone while letting it breathe. The non-yellowing formula won’t blister, crack, or peel, and it brings out your stone’s natural beauty.

Call for pricing and availability, or request a quote — you’ll talk to a real surface-prep expert, not a call center — fast answers and real recommendations.

Key Features

• Impregnating (penetrating) sealer — protects from within, not a surface film
• Water-resistant — guards against water and staining
• Lets stone breathe — no trapped moisture
• Non-yellowing — won’t discolor over time
• Won’t blister, crack, or peel — unlike film-forming sealers
• Enhances natural beauty — brings out the stone’s color and character

What It’s For

• Sealing and protecting natural stone
• Water and stain protection for stone surfaces
• Interior and exterior stone (call to confirm your application)
• Preserving stone’s natural look while protecting it

Why an Impregnating Sealer?

There are two kinds of sealers: film-forming (a coating on top) and impregnating (soaks in). Film-forming sealers can blister, crack, and peel — and they trap moisture. Impregnating sealers like Hetro-Seal penetrate the stone, protecting it from within while letting it breathe, so moisture doesn’t get trapped and the finish doesn’t fail. You get protection and the stone’s natural look, without the problems of a surface coating.

Available Sizes

• 1 Gallon
• 5-Gallon Pails
• 55-Gallon Drums

Frequently Asked Questions

What’s it for? Sealing and protecting natural stone with a penetrating, water-resistant seal.

What’s an impregnating sealer? One that soaks into the stone to protect it from within, rather than forming a film on top — so the stone breathes and the seal won’t peel.

Will it yellow or peel? No — it’s non-yellowing and won’t blister, crack, or peel.

What sizes? 1 gallon, 5-gallon pails, and 55-gallon drums.

Order Hertron Hetro-Seal Today

Call (815) 941-4800 x 1 or fill out our contact form. See our Hertron International, chemicals, and sealers.