Bostik ASA Megafix is a revolutionary polymer modified, white cement based flexible powder adhesive recommended for internal thin bed wall and floor applications. Suitable for plasterboard, fibrous cement sheeting, cement render, concrete and over Bostik/ASA approved waterproofing membranes. Megafix is recommended for application in bathrooms, toilets, kitchens, laundries and is suitable for most types of tiles.