Tuffjoint Weiss Extra (weiss Extra-KT) Oil & Grease Stain Remover

£37.49 Excl. VAT

Tuffjoint Weiss Extra (often called Weiss Extra-KT) is a specialist oil and grease stain remover from Steintec’s Weiss paving care range.

It’s a unique gel formula designed to tackle deep, stubborn oil, fat, and grease stains on concrete, porcelain, natural stone, and other paving surfaces. Unlike standard cleaners, it effectively draws out embedded contaminants without damaging the paving. It’s commonly used by landscapers and homeowners alongside Tuffjoint jointing mortars for post-installation cleaning and maintenance.

Key features:

  • Thick gel consistency (stays on vertical surfaces)
  • Targets oil/grease stains effectively
  • Suitable for external paving, driveways, patios, etc.
  • Part of the professional Steintec/Tuffjoint paving system

It’s the go-to product when you need to remove oily marks from paving before or after applying Tuffjoint.

** Price includes Next working day delivery

Available on back-order

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Technical Description: Tuffjoint Weiss Extra (weiss Extra-KT)

weiss Extra-KT is a solvent-based oil and grease stain remover supplied as a thixotropic gel. It is specifically formulated to extract deep-seated hydrocarbon contaminants (oil, grease, diesel, petrol, and fats) that have penetrated into porous paving surfaces.

Key Technical Properties:

  • Form: Thick gel (stays in place on horizontal and vertical surfaces)
  • Odour: Light solvent
  • Composition: Hydrocarbons C7-C9, C9-C10, n-alkanes, isoalkanes, cyclics (<2% aromatics). Flammable solid and vapour.
  • Substrates: Concrete, porcelain, natural stone, and most mineral paving surfaces

Application & Performance:

  • Applied at 3–5 mm thickness on dry surfaces
  • Dwell time: 4–6 hours (until it dries to a removable crust)
  • The gel draws contaminants out from below the surface; the dried residue is then swept away
  • Coverage: Approx. 0.4 m² per 1 Litre pouch (at 3 mm thickness)
  • Packaging: 1 Litre flexible pouch

Advantages: Highly effective on stubborn, aged stains without etching or damaging the paving substrate. Often used as part of the Steintec/Tuffjoint paving care system for post-installation cleaning.

It is the professional-grade solution for removing oil-based staining prior to or after jointing with Tuffjoint mortars.