Much like the EWI-220 EPS Basecoat Adhesive, the Winter Adhesive has a dual purpose: it can be used both within the basecoat reinforcement layer, with a fibreglass mesh embedded, and for fixing EPS insulation boards to substrates. Winter Adhesive should not be used for fixing extruded polystyrene (XPS) and external insulation on bituminous substrates. The EWI-221 comes as a dry-mix adhesive, so it should be mixed with water before application to substrates.
- Winter Adhesive should not be applied in rain or humid conditions, or if wet weather is expected before the adhesive has set.
- While this adhesive is suitable for application in cold weather, it should not be applied if the materials or the substrate are frozen or if temperatures are lower than 0°C.
- Use protective covers to shield the adhesive against extremes of weather conditions during and at least 8 hours after application.
- EWI-221 should be mixed with approximately 5.3 litres of water per 25kg of dry mix.