webertec 915 SG 30L Deitermann 1K 2K Bitumen

webertec 915 SG 30L Deitermann 1K 2K Bitumen Thick Coating

Attention

Before applying webertec 915, the substrate must be primed with weberprim 901. As a primer for bitumen thick coatings, webertec 901 should be diluted with water in a ratio of 1:10 and applied to the previously cleaned substrate.

Polystyrene-filled flexible 1- or 2-component bitumen thick coating

Application Area

For ground-level waterproofing of basement walls, floor slabs, foundations, and also for bonding polystyrene foam boards.

Product Description

webertec 915 is a 1- or 2-component bitumen thick coating tested according to DIN EN 15814.

Composition

Bitumen, Polystyrene

Product Properties

• Quick curing, weatherproof
• Flexible, crack-bridging
• High dry residue approx. 90%
• Saltwater resistant, frost-resistant in the dried state
• Resistant to aggressive concrete attacking waters up to strongly aggressive levels according to DIN 4030

Processing temperature: 5°C to 35°C air and object temperature

Density approx. 0.65 kg/dm³

Cleaning in fresh state: water, dried webersys 992

Mixing ratio: 30 L base mass to 2 kg powder

Application Tools

Layer thickness trowel, smoothing trowel

Drying Time

Minimum 3 days

Storage

In a dry, cool, frost-free storage in the original sealed container, the material is at least 12 months shelf life.

Consumption

• Coverage for ground moisture non-ponding percolating water: min. 40 m²
• Coverage for non-ponding water: min. 40 m²
• Coverage for ponding percolating water: min. 55 m²
• As plate adhesive on ground moisture non-ponding percolating water: approx. 2 m²

Substrate Preparation

The substrate must be frost-free, firm, clean, sufficiently dry, and free from tar, pitch nests, and cracks, as well as ridges and other contaminants. Water-repellent and adhesion-reducing components must be removed. Edges should be broken, and corners rounded. Joints and depressions greater than 5 mm should be sealed with webertec 933. Radius 5 cm rounded fillets at floor-wall joints. Before applying the thick coating, critical areas at the floor-wall transition should be protected against moisture ingress with webertec 933 radius 5 cm.

Application

Priming

webertec 901 is diluted 1:10 with water. Porous concrete and sandy substrates should be primed with weberprim 801.

Mixing for 2-Component Processing

Base mass and powder component are proportionally matched and mixed with a stir paddle No. 4 to a homogeneous, lump-free mass.

Crack Filling

To seal pores, cavities, and open joints up to 5 mm wide, a full-surface crack filling with the thick coating should be performed. The crack filling must not be disturbed by the subsequent waterproofing layer.

Sheet Waterproofing - Wall

The process is carried out in at least 2 coats. It is recommended to apply the second coat as soon as the first is no longer tacky. For rising percolating water, after the first coat, webersys 981 is incorporated into the fresh waterproofing layer.

Sheet Waterproofing - Floor

For waterproofing against ground moisture, the coating is applied in two passes on the floor slab. After drying, a two-layer polyethylene foil is laid as protection and slip layer, and the floating screed is then applied. For waterproofing against rising percolating water, the coating is applied on the clean surface layer.