Special Finishes

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Flexicure Jointing System

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Applicatin Specifications for Harditex

Ensure 7.5 mm Harditex is used and fixed vertically.  Overlapping all studs at 600 centres.  All joint gaps should be 4-6 mm to allow for sufficient filling compound.  any horizontal joints must overlap nogs at 800 centres.  All nails should be minimum 7 mm  40 mm galvanised Harditex nails, fixed at 15 mm centres.  (Do not use Gib-board nails.)

Apply Hardiseal Solvent Selaer to entire exterior surface of harditex sheets to ensure good adhesion of jointing system and prevent any water absorption or fibres delaminating.

Instructions for Use:


Ration by volume

Mix 3 parts Flexicure Powder to 1 part Flexicure Resin to smooth Lump Free consistency.  Adjust with Flexicure resin if a wetter mix is required for finishing.

Note: Do not adjust consistency with water - use only Flexicure Resin, to ensure minimum shrinkage and prevent cracking.


  1. Apply to entire surface of harditex Sheets one coat of mixed Flexicure Compound to all sealed joints, using a board knife or trowel pressing material well into the joint ensuring no air entrapment, then embed 75mm Polypropylene tape into wet coat.  Trowel smooth.  Allow to dry.
  2. Apply second coat of Flexicure Compound, trowelled over all joints to a smooth finish.  A spray mist of water in surface will assist trowelling smooth.
  3. Inspect all joints using straight edge ensuring all areas are flush.  Apply one further coat to completely level out joints.  Again use mist spray of water to assist.  (Do not apply any teture or paint if areas are not level.)
  4. Finishing Compound - Ready mied Finishing Compound should be used for final smoothing of joints.  Apply one coat of Strongwall Sealer then paint or texture as required in fine, medium or coarse.

Warranty / Liability

Special Finishes (NZ) Ltd provides all the enclosed information in good faith but without warrantee and is to assist your application. However the use of this product being used is beyond their control. The manufacturers can accept no responsibility whatsoever for any damage or failure arising from its application or use. It is totally the responsibility of the user to insure that the product is suitable for its intended use.