I have pavers and had them sealed with a wet look (not high gloss) water based sealer. Zero issues with slippage, but my pavers have a texture to them, so they're not smooth. In addition, the company did 3 coats, and added shark grip into the 3rd coat. I'm not sure that I needed the shark grip, but it was included.
You don't want an oil based sealer. It's considerably slicker, and if (read when) it fails, it costs more to clean off the old sealer than to reapply new product. If an oil based sealer fails, you can't just seal over it. Water based sealers penetrate into the pavers, and you can reapply sealer every 3-5 years without an issue. I’m planning to have my patio repainted, it’s Indian sandstone, and will be going for traditional mortar point. Does anyone have any experience/recommendations in terms of sealant for this material? Where I live algae is a pain, but I’ve also wondered if the right sealant can lift the sandstone colours a bit too. Definitely not into wet look, aiming for as natural as possible and not wanting to make the surface slippy, which I think some can. Not a decision I want to rush really
epoxy vegas, either getting it right or leaving as is.