Quality Hygioplast Washproof Plasters 72 x 25mm with strong hypoallergenic adhesive. Washproof plasters give stronger adhesion in wet or moist environments as the material does not absorb moisture. Washproof plasters are better used in the day to day covering of cuts and abrasions in wet environments or where constant hand washing occurs. The plasters are wrapped and sterile and the expiry date is marked on the box not on the individual plasters.