Good morning,
Thank you for your question.
Dryzone® Damp-Resistant Fast-Set Plaster should be left for a minimum of 4 hours before applying a standard gypsum skim coat to a thickness of approximately 2 mm. In particularly cold or damp conditions, or for plaster thicker than 20 mm, the drying time of Dryzone® Damp-Resistant Fast-Set Plaster will be extended and application of the skim coat should be delayed. Rapid drying out of the plaster should be avoided.
For particularly high suction or dry backgrounds, first wet down the surface using clean water. Do not use other additives such as PVA.
We hope this helps and if you have any further questions, please contact us directly.
Kind regards,
Teigan
Safeguard Europe Ltd.
01403210204.
Two Dryzone coats have been applied and dried.
Intend using a Thistle multi coat finish.
Can I apply a PVA / water mix beforehand ?