Portola Limeproof Primer contractor This is because the interface

This is because the interface pad will not stay in place while sanding using a standard Hook and Loop backup pad

Interior / Exterior

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With zero VOCs and zero emissions

Possibly the best primer in the world

Portola Limeproof Primer contractor This is because the interfacePortolas Limeproof Undercoat was created for use with Portolas Lime Wash and is designed to help achieve a more consistent appearance and uniform absorption of Lime Wash. Portolas Limeproof Undercoat can be used over previously painted interior and exterior surfaces. This is an acrylic primer made with 100% acrylic resin and formulated exclusively for Portola Paints.