Dryzone Dryshield Cream is a breathable, salt-resistant and water-repellent primer for Drygrip Adhesive. Part of the Dryzone System
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Technical Details
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Dryshield Cream Density
0.9 g/cm3
Dryshield Cream Coverage
3-4 m² per 1 litre tin
9–12 m² per 3 litre bucket
15–20 m² per 5 litre bucket
Drygrip Adhesive Density
1.3 g/cm3
Drygrip Adhesive Coverage
1 - 2 Drygrip cartridges per sheet of standard plasterboard
The Dryzone Express Replastering System is the fast, clean and modern way to replaster a wall after the treatment of rising damp. The system utilises a salt inhibitor cream and a salt & damp resistant adhesive to adhere plasterboard to salt contaminated walls.
Before the advent of the Dryzone - Express Replastering System, replacing the decorative surface after a rising damp treatment required several layers of render and plaster to be applied. This process takes at least 3 days, is messy and takes considerable experience in order to get right.
A rising damp and replastering treatment can now be completed in under 24 hours, using the Dryzone Replastering System. All the components of the system have been designed and formulated to create a long lasting and cost effective decorative surface.
Components & Coverage
Dryshield Cream:
An effective salt inhibitor cream, for use on walls contaminated with salts, as a result of rising damp. It resists the formation of salts in, or at, the masonry surface, without the need for a sand:cement render and acts as a primer for Dryzone Salt & Damp Resistant Adhesive.
Available in 3 and 5 litre tubs – Coverage rate of 5 m2 per litre – Brush or roller applied
Drygrip Adhesive:
A salt and damp resistant adhesive glue for fixing plasterboard directly to masonry surfaces. It is specifically formulated to work on walls treated with Dryzone Salt Inhibitor Cream. It is also effective as a general use adhesive.
Available in 600 ml foil sausages, for use with the Dryzone High Viscosity Applicator Gun – Coverage rate of 1 to 2 sausages per 2.8 m2 plasterboard
Dryzone Plasterboard Positioning Plugs:
50 mm × 5.5 mm plastic positioning plugs. They are used to set the air gap between the board and the wall before the Dryzone Adhesive cures.
Available in boxes of 50 plugs – Coverage rate of 4 to 6 plugs per plasterboard.
Remove any architraves and skirting boards that are in the way of treatment, e.g. if a skirting board is covering some contaminated plaster.
2
Fully remove all contaminated plaster, exposing the underlying masonry. All loose material should be fully removed by brushing clean.
3
To prepare for the installation of a damp-proof course (DPC), drill holes to the appropriate depth (refer to Table 1 above) at 120 mm intervals along the lowest accessible mortar course.
4
If debris is obstructing the installation of the DPC, re-drill the holes to remove any excess material. If debris continues to obstruct the DPC installation, the Dryzone System Hole Clearing Tool can be used to ensure the hole is completely clear.
Prime the lower portion of the wall by applying two coats of Drybase Liquid-Applied DPM to the masonry below the line of the DPC using a large soft brush.
7
Before applying Dryshield, remove any electrical sockets or light fittings on the wall so that the masonry behind them can be treated.
Apply Dryshield to the wall in a single coat using a large soft brush or roller. Make sure any holes and cracks are filled with cream and that all areas are coated evenly.
8
Allow the Dryshield Cream to soak into the substrate for at least 30 minutes, however, do not leave it for more than 24 hours before fitting the plasterboard with Drygrip Adhesive. Reinstate any removed fittings and socket fixtures before continuing.
9
Prepare the plasterboard by measuring and trimming it to fit around any electrical sockets and light fittings on the wall. Check the fit by offering the board up to the wall. A gap of 12 mm should remain between the base of the plasterboard and the floor.
10
Prepare the Drygrip Adhesive by inserting a cartridge into the applicator gun and cutting it open. Screw the nozzle cap onto the applicator gun and trim the tip of the nozzle to give it a 10 mm diameter size hole.
Tip: If you leave an opened cartridge in the applicator gun, ensure that the nozzle is covered to prevent the material from drying.
11
Apply small dabs of Drygrip Adhesive to the reverse side of the plasterboard at regular intervals. Typical consumption should be 1 - 2 tubes per sheet of standard size plasterboard. The thickness of Drygrip Adhesive will allow for some adjustment, permitting the plasterboard to accommodate and cover uneven areas of the wall. When application is finished, remove the nozzle cap and clean the applicator gun.
12
Offer the board up to the wall and fit into place. Ensure sufficient contact with Drygrip adhesive whilst allowing an air gap (preferably 10 - 12 mm to remain so that the plasterboard is not in contact with the wall. Adjust sections of plasterboard to fit over uneven areas as necessary.
13
It is recommended to prop-up the board using 12 mm plastic wedges or 12 mm thick offcuts for a precise fit. At normal temperatures, Drygrip Adhesive should set adequately after 1½ hours. At colder temperatures (i.e. sub 10°C), leave for 2 - 3 hours and check adhesion by gently pressing the plasterboard before further work.
14
Use the provided Dryzone Express Replastering System drill bit to drill holes at the corners of the plasterboard no closer than 25&nbps;mm to the edges.
15
Use Dryzone Express Replastering System Positioning Plugs to ensure an even flat surface across all boards. Tap in Fixing Plugs with a hammer, ensuring the final surface is even.
16
Apply scrim tape between any plasterboard joins.
17
A skim coat of plaster can now be applied. Proceed with additional replastering or decoration as required.
18
For faster replastering, apply scrim tape as usual, then joint the plasterboards by using the dry jointing method. Afterwards, apply a coat of plasterboard sealer, which can be immediately painted onto once the sealer is touch‐dry.
11
Remove any architraves and skirting boards that are in the way of treatment, e.g. if a skirting board is covering some contaminated plaster.
Fully remove all contaminated plaster, exposing the underlying masonry. All loose material should be fully removed by brushing clean.
To prepare for the installation of a damp-proof course (DPC), drill holes to the appropriate depth (refer to Table 1 above) at 120 mm intervals along the lowest accessible mortar course.
If debris is obstructing the installation of the DPC, re-drill the holes to remove any excess material. If debris continues to obstruct the DPC installation, the Dryzone System Hole Clearing Tool can be used to ensure the hole is completely clear.
Prime the lower portion of the wall by applying two coats of Drybase Liquid-Applied DPM to the masonry below the line of the DPC using a large soft brush.
Before applying Dryshield, remove any electrical sockets or light fittings on the wall so that the masonry behind them can be treated.
Apply Dryshield to the wall in a single coat using a large soft brush or roller. Make sure any holes and cracks are filled with cream and that all areas are coated evenly.
Allow the Dryshield Cream to soak into the substrate for at least 30 minutes, however, do not leave it for more than 24 hours before fitting the plasterboard with Drygrip Adhesive. Reinstate any removed fittings and socket fixtures before continuing.
Prepare the plasterboard by measuring and trimming it to fit around any electrical sockets and light fittings on the wall. Check the fit by offering the board up to the wall. A gap of 12 mm should remain between the base of the plasterboard and the floor.
Prepare the Drygrip Adhesive by inserting a cartridge into the applicator gun and cutting it open. Screw the nozzle cap onto the applicator gun and trim the tip of the nozzle to give it a 10 mm diameter size hole.
Tip: If you leave an opened cartridge in the applicator gun, ensure that the nozzle is covered to prevent the material from drying.
Apply small dabs of Drygrip Adhesive to the reverse side of the plasterboard at regular intervals. Typical consumption should be 1 - 2 tubes per sheet of standard size plasterboard. The thickness of Drygrip Adhesive will allow for some adjustment, permitting the plasterboard to accommodate and cover uneven areas of the wall. When application is finished, remove the nozzle cap and clean the applicator gun.
Offer the board up to the wall and fit into place. Ensure sufficient contact with Drygrip adhesive whilst allowing an air gap (preferably 10 - 12 mm to remain so that the plasterboard is not in contact with the wall. Adjust sections of plasterboard to fit over uneven areas as necessary.
It is recommended to prop-up the board using 12 mm plastic wedges or 12 mm thick offcuts for a precise fit. At normal temperatures, Drygrip Adhesive should set adequately after 1½ hours. At colder temperatures (i.e. sub 10°C), leave for 2 - 3 hours and check adhesion by gently pressing the plasterboard before further work.
Use the provided Dryzone Express Replastering System drill bit to drill holes at the corners of the plasterboard no closer than 25&nbps;mm to the edges.
Use Dryzone Express Replastering System Positioning Plugs to ensure an even flat surface across all boards. Tap in Fixing Plugs with a hammer, ensuring the final surface is even.
Apply scrim tape between any plasterboard joins.
A skim coat of plaster can now be applied. Proceed with additional replastering or decoration as required.
For faster replastering, apply scrim tape as usual, then joint the plasterboards by using the dry jointing method. Afterwards, apply a coat of plasterboard sealer, which can be immediately painted onto once the sealer is touch‐dry.
Can the Dryzone Dryshield Cream/salt and moisture resistant board adhesive be used to apply insulation backed plasterboard.
Sofia Janzen at safeguard Europe.com
Hi Mike
Thank you for your question, please see our response below.
When considering foil-backed or insulation-backed plasterboards, two things matter: adhesion and vapour permeability.
These boards can be difficult to bond with Drygrip Adhesive, so mechanical fixings may be needed. They're also low in breathability, which increases the risk of moisture becoming trapped behind the board, leading to interstitial condensation.
We don’t recommend using foil-backed plasterboard with the Dryzone Express system. The thermal benefits are minimal, while the condensation risk is significant.
If condensation forms, it can run down to the floor. On timber floors, this may lead to damp, rot, or mould. On concrete floors with a DPM, the risk is lower but can still affect floor coverings.
If you need more in depth assistance with your project, please contact us directly.
Can the Dryzone Dryshield Cream/salt and moisture resistant board adhesive be used to apply insulation backed plasterboard.