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Modified Pure Polyurea - PUR 426

Modified Pure Polyurea - PUR 426

PUR 426


PUR 426 is a two component, modified pure polyurea coating system with very fast setting, rapid curing, aromatic and flexible properties. It provides seamless and long term durable waterproofing and floor coating for concrete, metal, wood, ceramic, geotextile and PU foam substrates. It is applied at high pressure with heated multi-component spraying equipment.

Fields of Application

Features and Benefits

Application Procedure

Preparation of Substrate

All dust, loose and friable material must be completely removed from all surfaces before application of the product, preferably by brush and/or vacuum. Weak concrete must be removed and surface defects such as voids must be fully exposed. Repairs to the substrate, filling of blowholes/voids and surface leveling must be carried out using appropriate products. Optimum surface temperature is 10-30°C, air temperature is 20-30°C and relative air humidity is 25-50%. EPOX PR 100 primer application is recommended for achieving good adhesion. Lightly broadcasting with quartz sand 0,3-0,8 mm is recommended because this provides higher adhesion values and extends the maximum waiting time of primer prior to the application of polyurea coating. In order to avoid the formation of blisters do not broadcast to excess. After 12-24 hours of primer application, polyurea application can be start.

Application Method

Before the application B component must be stirred at least 30 minutes with using a barrel mixer until getting homogenous mixture and color obtained. A and B component must be applied by using a two components high pressure and heat spray machine with 1:1 volume ratio. Both component must be heated above 70°C and stable in this temperature during the application. Cured material is UV resistant but can be showed discoloration when exposed the sunlight. This does not influence service life or performance of material. If the color stability required, PU TOP 210 aliphatic top coat must be applied within 12 hours of applying base coat.



A Component: 225 kg barrel – B Component: 200 kg barrel

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