Self-Adhesive & Perfect for Soundproofing & Underfloor Heating under Carpet, Wood, Laminate, Vinyl, Rugs & Carpet Tiles. Perfect for Kitchen, Bathroom, Bedroom, Lounge, Dining, Hall, Stairs, Commercial. Instalay Q50 High-Grab Acoustic is a 5mm peel & stick acoustic underlay that can be laid under carpet, carpet tiles, vinyl, laminate & wood flooring in heavy domestic, contract & under-screeding applications. It delivers excellent acoustic insulation, outstanding comfort & stability,