MasterSeal Hotspray Applied Polyurea
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MasterSeal M689 and M811 waterproof and protective hotspray liquid coatings and relevant substrate primers.
Applications
Suitable for flat roof waterproofing including balconies, walkways, podium decks, and most structural waterproofing:-
On concrete:
• Abrasion resistant protective coating in industrial and manufacturing facilities
• Waterproofing for cut and cover structures
• Waterproofing for submersed structures
• Waterproofing on walkways and balconies
• Waterproofing on floors and car park decks
• Water retaining structures in power plants
• Secondary containment structures
• Tank, bund and pit lining in sewage and waste water treatment plants
On steel
• Truck bed lining
• Waterproofing and wearing layer on steel ridges
Benefits
• Very fast reactivity and curing time
• Almost immediate return-to-service time
• Applicable in temperatures from -20 °C to +50 °C
• Performs in constant dry temperatures from -30 °C to +100 °C
• Excellent crack bridging properties
• Good chemical resistance
• Excellent abrasion resistance
• UV light exposure may lead to yellowing
• Not resistant to biogenic sulphuric acid
Primers
Bitumen felt - MasterTop P 698
Concrete cementitious / screed - MasterTop P 617 or MasterTop P 650
Asphalt screed (mind. AS-IR10) - MasterSeal P 660 or MasterTop BC 375 N
Plywood (preliminary tests are recommended) - MasterSeal P 660 or MasterTop P 691 GRP / GFK MasterTop P 691
Iron and Steel - MasterTop P 681 Non-ferrous metals (e.g. aluminum, zinc) MasterTop P 684 Aged MasterSeal membrane MasterTop P 691



















