POWERSTONE White Stones Impregnator, Thassos Marianna Pebbles, Powerstone 5L, Algae Stop. POWERSTONE is a water-based, PST hydrophobic impregnator for protecting natural stones in the garden. Particularly recommended for white pebbles and aggregates (e.g., Thassos, "White Marianna," marble), which are prone to greening and losing their whiteness. POWERSTONE is a water-based, PST hydrophobic impregnator for protecting natural stones in the garden. Particularly recommended for white pebbles and aggregates (e.g., Thassos, "White Marianna," marble), which are prone to greening and losing their whiteness. The advanced POWER-SILANE formula penetrates the aggregate structure and creates an invisible barrier: it limits the penetration of water, oils, and atmospheric dirt, facilitates cleaning, does not gloss (matte), and allows the stones to "breathe." It also protects against UV radiation and supports frost resistance, reducing the risk of erosion and cracking. Application: clean, dry, and degreased decorative stones in flowerbeds, pots, and around kennels (the product works on all colors, but whites are the most demanding). Application: spray (sprayer) or dip (immersion – most thorough for new stones). 1 coat recommended; in particularly absorbent areas, a second thin coat can be applied wet-on-wet. Conditions: +10°C to approx. +25°C, no precipitation; protect the surface from rain and condensation for at least 3–6 hours after application. Full drying: approx. 24 hours. Consumption: 8–10 m² from 1 l (1 layer) = approx. 40–50 m² from a 5 l container. It is worth repeating the treatment every 2–3 seasons. Deep POWER-SILANE protection – the impregnation penetrates the structure, not just settles on the surface. Yellowing (UV) blocker – an active filter protects the snow-white stone from sunlight. Self-cleaning lotus effect – raindrops rinse dust and dirt from the stone surface. Antibiological barrier – effectively prevents the formation of moss, algae, and green growth. Natural appearance – does not gloss, change color, or create an artificial coating. Safety and comfort – odorless, does not increase surface slipperiness, and is environmentally friendly. High efficiency – professional surface protection from a single 5-liter package. Practical tips: first remove green growth and dirt, dry the stone thoroughly, and only then impregnate; avoid overwatering to avoid streaking, and remove excess from non-absorbent elements. To maintain the effect, renew the impregnation every 2–3 seasons.