CURNOIR®

CURNOIR® is an elastomeric bitumen-based waterproofing coating, containing mineral filler and volatile solvents.

Description

CURNOIR® is a versatile product that can be used as: a bituminous waterproofing coating on concrete, fibre cement and for the regeneration of existing waterproofing systems - in both cases, CURNOIR needs to be protected from UV radiation by a layer of CURAL®, either with slate chippings or gravel (under an ECRAN NTS 170). It can also be used as a waterproofing coating for foundations and concrete-block or concrete basement walls, or as a primer on concrete or concrete blocks before the application of COLPHENE® self-adhesive waterproofing membranes.

Implementation

CURNOIR® is a multi-use product, notable use include:

  • Waterproof covering for concrete, corrugated fiber cement/steel roofing panels, and for the renewing of old waterproof protection (in both cases, CURNOIR must be protected from ultraviolet rays by a CURAL layer, either with slate chippings or with gravel (under NTS 170 geosynthetic).
  • Waterproofing covering for concrete foundations. Product must be well mixed in order to obtain a proper homogenization of components. Ensure that the tools are clean.

    1. Waterproofing coating on concrete:
    - ensure that surface is clean and dry,
    - apply a first layer of CURNOIR® (about 400 g/m²) with a brush or a squeegee,
    - let product dry for 24 hours,
    - apply a second layer of CURNOIR (approx. 400 g/m²). If the surface will be exposed to U.V. rays, cover it with slate chippings (2 kg/m²) or, after 24 hours, apply 2 layers of CURAL (2 x 200 g/m²) with a brush, a scrapper or a roller.

    2. Renewing of all SBS and oxidized waterproofing bitumen surfaces:
    - clean and dry surface properly, if possible with a blowtorch,
    - deflate air pockets and clean out cracks,
    - eventually apply a sealing coat (ELASTOCOL® 500), about 0,25 l/m²,
    - fill the cracks in with a coat of CURNOIR with a spatula,
    - let product dry for 24 hours,
    - spread a coat of CURNOIR with a brush or scraper (about 0,25 l/m²) with slate chippings (2,0 kg/m²) or, after 24 hours, apply 2 layers of CURAL® (2 x 200 g/m²) with a brush, a scrapper or a roller.

    3. Renewing of corrugated fiber cement/steel roofing panels:
    - apply a layer of CURNOIR® (about 400 g/m²) with a brush,
    - let product dry for 24 hours,
    - apply 2 layers of CURAL® (2 x 200 g/m²) to protect surface from U.V. rays and embellish it.

    Tool cleaning: cleaning solvents (i.e. White Spirit, Xylene)

Packaging

- Boxes: 5 kg
- Cans: 25 kg
- Storage: 1 year in original can, in a cool, well-ventilated area.

Regulations and approvals

SOPREMA has always attached the highest importance to Quality Control. For this reason, we operate an independently monitored Quality Assurance System in compliance with BS EN ISO 9001: 2008, certified by BSI Management System.

Documents to download

TECHNICAL DATA SHEET

PDFCURNOIR
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