Slurry Primer is painted onto the underside of paving materials to aid adhesion with the bedding layer. Also known as a bond bridge, slurry forms a solid course which helps prevent moisture and cementitious materials leaching up into the paving, and is recommended for use with lighter coloured materials. Slurry primer also improves adhesion and should be used with non-porous stones, such as Slate, Porcelain and Granite. Both Larsen Streetscape PS Primer and SBR Bond contain polymers for improved performance and require only the addition of water to create the slurry. London Stone supplies Larsen Streetscape PS Primer in 25kg bags for application to large areas, while the smaller, resealable tubs of SBR Bond are ideal for smaller projects. Both remove the need to mix multiple materials, so saving you time. SBR primer is increasingly used to help underpin a long-lasting finish to hard landscaping and should be considered where paving is subject to heavy traffic, to increase durability. It's recommended for lighter coloured paving to protect against the incidence of staining and picture framing.