Will Marine grade ply still require sealing or can this adhesive be used directly on the surface?
There is no need to seal\prime the area before using this product. The ply must be at least 15mm thick, and be of Marine or WBP grade.
Palace Trade Flex is a fast setting cement-based, highly polymer modified wall & floor tile adhesive, shown here in white this adhesive is ideal for fixing ceramics, mosaics & porcelain to timber panels, WPB plywood, waterproof composite boards (backer boards) and impermeable surfaces such as existing tiles and power-floated concrete. There is no need use any additional additive in the mix.
This white tile adhesive is ideal for use with light coloured natural stone such as travertine and limestone to prevent shadowing and also for use on white\light wall or floor tiles to prevent joint overspill showing through joints, also ideal for fixing glass tiles and prevent the adhesive showing through the backing.
Trade Flex gives improved flexural strength, water-resistance and is recommended for applications over wet or dry underfloor heating.
This flexible adhesive reaches final set after about 3 - 4 hours depending onsite temperatures, and is ready to be grouted at that time.
Trade Flex conforms to BS 5980 Type1 Class AA (BS EN 12004 Type C, Class 2FT)
The manufacturers coverage guidelines state that 20kg will cover approximately 5m2 on a floor, when using a 10mm notched trowel.
Palace chemicals are a long standing British manufacturer who make branded products for some very big names within the industry.