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Stone sealing forms a waterproof and UV-resistant protective layer on natural stone surfaces and artificial stone surfaces.
For indoor and outdoor use, as the product is weather-resistant and does not yellow.
Water and dirt no longer penetrate the surface and the surfaces are easier to care for
For natural and artificial stone surfaces, slate, porphyry, sandstone marble, terrazzo, polygonal slabs, artificial stone etc.
Consumption: 1L for approx. 5-6m² / Made in Germany
Natural and artificial stone surfaces, slate, porphyry, sandstone marble, terrazzo, polygonal slabs, artificial stone, etc.
The substrate should be thoroughly cleaned before application. After the surface has completely dried out, the W840 can be processed with roller or brush. Please ensure that the amount is even and adapted to the surface. Remove excess stone seal with a cloth. The floor should not be walked on before it hardens.
Consumption: 1L for approx. 5-6m²
Due to its water resistance, the product can also be used as protection for joints in surfaces such as concrete floors, concrete stairs, concrete window sills and much more suitable. In this way you protect the joints, make them water-repellent, deepen the colors and protect them from staining.
Quality and experience for your projects
For over 20 years, Wolfgruben Werke has stood for high-quality paints, varnishes, and coatings “Made in Germany.” With more than 500,000 satisfied customers, we are among the leading providers of professional coating systems for indoor and outdoor use. Our products are distinguished by their durability, high coverage, and excellent application properties. Many solutions are also certified by the Institute for Consumer Protection, guaranteeing the highest safety and quality for your projects. Whether floor coating, roof paint, wood varnish, or bathtub coating – with us you’ll find tested brand quality you can rely on.Paints, varnishes, and coatings from the professionals
Our wide range includes paints, varnishes, epoxy resin coatings, and matching accessories for renovations, refurbishments, and creative projects. As a top online retailer in 2025 with a rating of 4.9 out of 5 stars, Wolfgruben Werke offers you expert advice and comprehensive customer service. We deliver your order quickly and free of shipping costs within Germany so you can start your project without delay. Thanks to our many years of experience, German manufacturing, and recognition from TV, radio, and trade magazines, we stand for quality and reliability – by professionals for professionals and demanding DIY enthusiasts.Our customer service is available from Monday to Friday from 9:00 AM to 6:00 PM.
Average response time: 24 hours
Optimal Processing Conditions
Which tool is the right one?
How do you clean tools?
It depends on the materials you have worked with:
Cleaning tools contaminated with epoxy resins is a bit more complicated. You should always weigh up cost vs. benefit:
It depends on the materials you have worked with:
Cleaning tools contaminated with epoxy resins is a bit more complicated. You should always weigh up cost vs. benefit:
Why is the paint or oil not drying?
Possible reasons:
Possible reasons:
The surface is still sticky after a few days of drying. What can I do?
Possible reasons:
If the paint was applied thickly or the excess oil was not removed from the surface, the wood may remain sticky.
What to do:
You can use a soda lye with warm water or sand the surface mechanically and then reapply the paint or oil.
Possible reasons:
If the paint was applied thickly or the excess oil was not removed from the surface, the wood may remain sticky.
What to do:
You can use a soda lye with warm water or sand the surface mechanically and then reapply the paint or oil.
Ich habe meine Terrasse aus Sandstein mit der W840 versiegelt, und das Ergebnis ist beeindruckend. Wasser perlt einfach ab, und Schmutz kann sich viel schwerer festsetzen. Die natürliche Optik des Steins bleibt dabei erhalten – absolut empfehlenswert!
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Promte Lieferung
Ich habe die W840 auf meinem Küchenboden aus Schiefer angewendet, und sie hat ihn hervorragend imprägniert. Flüssigkeiten dringen nicht mehr ein, und die Reinigung ist viel einfacher geworden. Tolle Qualität!
Das Produkt lässt sich problemlos auftragen und zieht schnell ein. Mein Granitboden sieht danach gepflegt aus, ohne speckig oder glänzend zu wirken. Ideal für alle, die ihre Natursteinflächen langfristig schützen wollen.
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