- Chemical Family:Polyesters
- Product Type:Foam Sealer, Sealer
Crestamould® B12R Sealer is a MEKP catalysed, brushable, slightly thixotropic sealer designed to coat expanded and extruded polystyrene foams. It acts as a chemical bridge and barrier between the polystyrene foam and either a laminate or a machinable polyester-based tooling paste such as Crestamould T27/T28. Its main use is for sealing of polystyrene foam blanks used in 5-axis plug and pattern work.