RadonTec | AlphaSeal Sealing slurry 25 kg

AlphaSeal radon-proof thick coating for a safe home

AlphaSeal radon-proof 2-K coating can be used for a variety of applications. The polymer-modified thick coating (FPD) can be used as an interior and exterior structural waterproofing membrane on horizontal and vertical surfaces, as well as for structural repair.

As a hybrid waterproofing system, AlphaSeal combines the advantages of a polymer-modified bitumen thick coating (PMBC) and a flexible mineral sealing slurry (MDS).

AlphaSeal complies with the DIN EN 14909 and DIN EN 13967 standards.

When installing the AlphaBlock 4+ radon foil, the AlphaSeal sealing slurry is used for radon-proof bonding of the foil to the corresponding parts of the Building.

Test reports and certifications

• General building authority test certificate (abP) for MDS
• MPA test report for FPD
• MPA test report crack bridging
• Test report: Tight against radon at 3 mm TDS
• CE certification according to EN 14891 CM O1

Areas of application of AlphaSeal

• Radon sealing: for radon-proof bonding of the AlphaBlock 4+ radon foil
• Building waterproofing: interior and exterior
• Building repair
• Base waterproofing
• Surface sealing: horizontal and vertical
• under tiles, screed and rising building component
• Bonding of insulation boards (after approx. 24h)
• For substrate preparation as cove mortar or scratch coat, filled with quartz sand
• As FPD: Crack bridging up to max. 1.0 mm (crack bridging class RÜ3-E according to DIN 18533-1 or crack class R3-B according to DIN 18535-1).
• As MDS: Crack bridging up to max. 0.2 mm (crack bridging class R1-E according to DIN 18533-1 , or crack bridging class R1-B according to DIN 18535-1)

Technical data of AlphaSeal

• Color: dark gray
• Solid: approx. 90 wt.%
• Density (+20 °C): approx. 1.10 g/cm³
• Processing temperature: + 2°C to + 30°C
• Processing time: approx. 45 minutes

Properties of AlphaSeal

• Radon-proof
• Rapidly rainproof, after approx. 2h
• Water pressure resistant, within 24h (up to 10m water column)
• Tough elastic
• Crack-bridging
• Can be plastered over
• Can be painted over
• Bitumen-free
• Mineral
• UV-resistant
• Frost resistant
• Can be refilled after only 16 hrs.
• Fast setting, even at temperatures of +2°C
• Creamy and homogeneous application

Consumption

A fresh layer of 1.02 mm results in a dry layer of approx. 1 mm. The consumption thus corresponds to 1.07 kg/m².

When bonding AlphaBlock 4+ Radon Film, a fresh layer of 4 mm (3 mm dry layer) and a consumption of approx. kg/m² must be expected.

The additional consumption of approx. 1 - 1.5 kg/m² for scratch as well as filler fillings and variations due to processing must be calculated additionally.

Substrates for AlphaSeal

• clean
• free of grease and oil
• free of loose constituents
• on dry or slightly damp substrates
• on old bituminous substrates
• on mineral waterproofing

Shelf life

The original sealed container has a shelf life of at least 12 months. Storage must be dry, cool but frost-free.