These stone sealers are globally recognised. Lithofin MN Stain-Stop is arguably the best penetrating sealer the market has to offer. It has been used on numerous iconic buildings around the world, monument, government complexes, etc.. Its high levels of stain repellency and stain proofing makes it the no. 1 choice in stone sealers. It is durable and its longevity simplifies maintenance. Tenax Hydrex is a general all rounded cost effective and an alternative stone sealer.