斯里兰卡采购需求：防水防油整理剂、防污整理剂

I'm looking for a high-quality water repellent paint specifically designed for external cement plastered walls. It's important that the paint provides excellent durability and weather resistance. I would appreciate any recommendations you may have regarding suitable products. Additionally, could you please share the contact details of your stockist in Jaffna? This will help me in sourcing the product locally. Thank you in advance for your assistance!