Permendure

• Mechanically prepare substrate to ensure the optimal performance of the adhesive material  used to bond the fabric; follow the resin/mortar coating manufacturers recommendations  regarding substrate moisture content & temperature, minimum & maximum ambient  application temperatures, atmospheric humidity and dew point consideration.  

• Ensure floors are vacuumed to remove any debris which can cause the fabric to “tent” and  that walls are sufficiently flat to ensure the material will sit within the thickness of the resin  or mortar coating.  

• Assess the substrate porosity. Porous substrates may require the application of an initial coat  of primer to seal the substrate prior to applying a second priming/encapsulating coat. This will  ensure sufficient primer remains on the surface to provide adequate material to bond the  fabric. This is particularly relevant when applying material more porous sand/cement screeds  but may be necessary on other mineral or timber substrates.

Application methods are dependent on the material used to adhere the fabric, such as two component  resins or cementitious mortars. Note: dependent on the surface to which the Permendure is being  applied and the ultimate final applied finish, Permendure can be bonded to the substrate with either  the woven layer or backing fabric facing the substrate 

Permendure should be cut to length using shears. Once cut, roll up and store where the membrane  will not be trafficked. 

Bonding with Two Component Resins  

• Having sealed the substrate if necessary, the chosen resin adhesive mixed, as per the  manufacturer’sinstructionsshould be applied to the floor at a minimum rate of 600g/m2 using  a notched trowel, caulking blade, squeegee or roller exceeding the width of the Permendure by 100mm. When using epoxy or PMMA resin, this adhesive layer may be mixed at the ratio  of 1:1 with 0.1 - 0.3mm kiln dried quartz sand.  

• Roll the fabric out into the wet resin and press into place with a trowel or star roller. Continue  across the room rolling out and embedding as you proceed. Thought should be given to the  time required to complete each width to ensure the next length can me embedded within the  open time of the adhesive material already applied. A weighted roller can be used to ensure  the Permendure is properly in full contact with the substrate.

Bonding with Cementitious Adhesive Mortars 

• Having sealed/primed the substrate, trowel apply a layer of mortar paste to approximately  one square metre of floor, using a minimum 3mm notched trowel, exceeding the width of the  Permendure by approximately 100mm.  

• Roll out the fabric into the mortar and press into place with a trowel. Note: Permendure  should be butt jointed and not overlapped. Continue across the room rolling out and  embedding as you proceed. Thought should be given to the time required to complete each  width to ensure the next length can be embedded within the open time of the adhesive  material already applied.

It may be easier on occasions to mechanically adhere fabrics on undulating timber substrates using  staples around the perimeter, and periodically to some low or high points. If necessary, hammer  staples down to ensure they will not protrude through the finish.

Alternatively, longer staples may be  used to allow the fabric to be suspended within the body of the mortar which can be useful in thicker  repairs and when applying smoothing screeds.

On mineral substrates, hot glue can be used to spot  adhere fabrics to the perimeter to ease pulling taught if necessary.

Allow to cure sufficiently prior to applying intermediate or topcoats over the fabric layer. If the surface  of the system is to be polished or burnished, it is important to provide sufficient mortar coverage to  ensure the fabric patten does not show through in the finish.  

Allow the adhesive layer to cure sufficiently prior to applying subsequent applications, be that a final  finish or intermediate smoothing screed.

All movement joints in the substrate should be brought through the finished surface. Re-form once  fully cured using a diamond saw and seal using a suitable joint sealant.

Store on ends, on pallets, in dry conditions out of sunlight in original unopened packaging.

Gloves should be worn when using this fabric. It is of primary importance that the health and safety  precautions recommended by the manufacturer of the adhesive material are observed, specifically  with regard to the required PPE for skin, eye and lung protection.