User Type: Flooring Installer

Using Pro Gyp-Base on an Anhydrite Screed with Permalayer Matting

Using Norcros Adhesive’s fast track solution for tiling to anhydrite screeds you can tile to 7 day old screeds (up to 95% RH). The kit contains everything you need to prepare 25m². It’s been tested and approved by Gypsol.

  1. Pump the Anhydrite screed
  2. Remove all air bubbles and allow to dry until the screed has achieved a Relative Humidity of not greater than 95%. This will be around 7 days after the screed has been laid
  3. Remove all traces of laitance and dust by lightly sanding the surface
  4. Mix parts IA and IB together and mix until it is smooth and lump free
  5. Apply to the screed using a roller or brush. Allow to dry for 2 hours
  6. Mix parts 2A and 2B together and mix until it is smooth and lump free
  7. Apply to the screed using a roller or a brush, at a 90° angle to the first coat
  8. Allow to dry for 24 hours
  9. Pour the moisture suppressant into a suitable tray. Apply first coat using a roller or brush and then allow to dry for 1 hour
  10. Apply second coat of moisture suppressant using a roller or brush, at a 90° angle to the first coat. Allow to dry for 1 hour
  11. Apply one coat of the gritted primer. Allow to dry for 1 hour
  12. Prepare and mix Norcros Pro-Gyp Base tile adhesive, and apply to screed. If required, apply Pro-Gyp Base Levelling Compound before tiling commences
  13. Lay Norcros Permalayer into the adhesive bed ensuring that the adhesive penetrates through the Permalayer
  14. Prepare and mix tile adhesive and apply to Permalayer. Lay tiles and grout once adhesive is dry

Using Pro Gyp-Base on an Anhydrite Screed

Using Norcros Adhesive’s fast track solution for tiling to anhydrite screeds you can tile to 7 day old screeds (up to 95% RH). The kit contains everything you need to prepare 25m². It’s been tested and approved by Gypsol.

  1. Pump the Anhydrite screed
  2. Remove all air bubbles and allow to dry until the screed has achieved a Relative Humidity of not greater than 95%. This will be around 7 days after the screed has been laid
  3. Remove all traces of laitance and dust by lightly sanding the surface
  4. Mix parts IA and IB together and mix until it is smooth and lump free
  5. Apply to the screed using a roller or brush. Allow to dry for 2 hours
  6. Mix parts 2A and 2B together and mix until it is smooth and lump free
  7. Apply to the screed using a roller or a brush, at a 90° angle to the first coat
  8. Allow to dry for 24 hours
  9. Pour the moisture suppressant into a suitable tray. Apply first coat using a roller or brush and then allow to dry for 1 hour
  10. Apply second coat of moisture suppressant using a roller or brush, at a 90° angle to the first coat. Allow to dry for 1 hour
  11. Apply one coat of the gritted primer. Allow to dry for 1 hour
  12. Prepare and mix Norcros Pro-Gyp Base tile adhesive, and apply to screed. If required, apply Pro-Gyp Base Levelling Compound before tiling commences
  13. Lay tiles, then grout once adhesive is dry

Laying Norcros Permalayer onto a Green Screed

  1. First, your existing screed should be sealed with a coat of Norcros Prime Bond, diluted 1-to-4 with water
  2. Roll out the Permalayer and cut to the size required
  3. Next, pour cold water into a mixing bucket and gradually add the adhesive powder. Only mix the amount of adhesive you would be able to use within half an hour, else it will begin to skin over
  4. Use an electric mixer to achieve the right consistency
  5. Now, spread out the adhesive using a suitably notched trowel
  6. Firmly press the matting into the adhesive with the smooth side of thr trowel. The adhesive should penetrate through the surface of the mat. Leave it to dry
  7. Once dry, you’re ready to start drying
  8. Mix another batch of adhesive as before
  9. Spread the adhesive using a suitable trowel, such as a thick bed trowel
  10. Firmly press the tiles into the adhesive ribs with a slight twisting action to ensure the adhesive ribs collapse to form a solid bed of adhesive beneath the tiles
  11. Once you’re finished, your tiles can be grouted 3 hours after you have finished laying

How To Level A Floor Using Pro 30 Fast Track Eco Levelling Compound

  1. First, make sure the area is clean and dry. Brush away any dust, dirt, or laitance
  2. Now you’re ready to prime. Thoroughly mix Norcros Prime Bond with water at a ratio of 1-to-4
  3. Apply with a brush over the floor and leave to dry
  4. Now you’re ready to start applying the leveller. Add 5 litres of water to a clean bucket and slowly add the 20kg bag
  5. Using a drill mixer, mix enough leveller for about 20 minutes working time
  6. Mix it to a smooth consistency
  7. Pour the compound onto the floor
  8. Trowel out to the desired depth, ensuring all areas are evenly covered
  9. Test if the levelling compound is dry by using your hand. It’s normal for heat to radiate from the newly-laid floor
  10. Once it’s dry, floor coverings can be laid using the manufacturers recommended methods

Tiling Onto A Newly Laid Screed Floor

  1. Make sure the background surfaces are dry, clean, flat, and storng enough to support the tiling
  2. Remember to seal it if it’s porous or dusty with Norcros Prime Bond, diluted 1-to-4 with water. Check for any special preparation instructions for your. background
  3. Roll the Permalayer matting out and cut to size
  4. Now you’re ready to start mixing the adhesive to lay the mat. Pour cold water into the mixing bucket to the required level for the weight of powder. Gradually add the adhesive at a ratio of 1 part water to 3.5 parts powder, stirring as you go to blend into a smooth, lump free consistency. Only mix the amount of adhesive you’ll be able to use within 30 minutes
  5. Spread out the adhesive using a suitable notched trowel. A thin bed trowel can allow for a thin layer of adhesive
  6. Firmly press the matting into the adhesive with the smooth side of the trowel, ensuring the adhesive is keyed into the matt. The adhesive should show through to the surface of the mat
  7. Leave to dry
  8. Once dry, you’re ready to start tiling. Mix another batch of adhesive as before
  9. Spread the adhesive using a suitable notched trowel. A thick bed trowel will give a solid bed of adhesive
  10. Firmly press the tiles into the adhesive with a slight twisting action. Lift a tile every now and again to check the coverage
  11. The adhesive is rapid setting, so you can grout just 3 hours later